196,414 research outputs found
Serhiy Teslenko (1959–2000): biographic essay
No full textA brief biographical sketch of Sergey Teslenko, a colleague with whom the author worked together for many years is presented. Serhiy Vasyliovych graduated the Karazin Kharkiv University; later he was an employee of the Department of Zoology at the Poltava Pedagogical University and a postgraduate of the Institute of Zoology, National Academy of Sciences of Ukraine. He started as an ornithologist, but later he wrote his thesis on the study of sibling species of rodents. After defending his thesis, he dedicated his life to teaching, and he worked in Poltava (Ukraine) and Luanda (Angola). Tragically died in 2000 in Angola
Megaperlodes tiunovi Teslenko 2015
No full textMegaperlodes tiunovi Teslenko 2015 (Fig. 1) Megaperlodes tiunovi Teslenko 2015:554. (original description of male, female and larva). Type locality: Russia, Primorye, Brus’ya River at Bamburovo New record (photograph): SOUTH KOREA: Gangwon Province, Inje-gun, Girin-myeon, Bangdong-ri, (Mt.) Bangtaesan, N37°56’33.73” E128°22’55.76”, 06.v.2010, T. W. Kim. On the very same day when the description of M. tiunovi was published, the first author encountered a color photograph of a similar stonefly in the recent monograph of Korean Orthoptera (Kim 2013). The image is included in a table to present orders related to Orthoptera, but even though it is small, the characteristic wing and head pattern of the species are obvious. Dr. Tae Woo Kim kindly provided us an original, larger image and informed us about the habitat and other circumstances where the photo was taken. Unfortunately, the specimen was not captured, but it was clearly identical with the type series. Dr Valentina A. Teslenko also confirmed its conspecificity. Although it is not the usual practice to publish stonefly records without voucher specimens, vertebrate biologists occasionally do, [e.g. birds, where even a new species was described without fixing type specimens Robb et al. (2013); however, disputed and put in synonymy by Kirwan et al. (2015)]. We take this exception because of the distinctive habitus of M. tiunovi, and the detailed agreement based on high quality photographs of the Korean specimen (Fig. 1) with that of the type specimens (Figs. 1–2, 4 in Teslenko 2015). We also note that color photography has increasing importance in the study of stoneflies, and photographic guides are already available (Stark et al. 1998, Szczytko & Kondratieff 2015). The Korean specimen of M. tiunovi was found near a narrow stream resting on stones during daytime and showed weak flight ability. According to the latest stonefly reports from South Korea (Murányi & Park 2011, Zwick & Baumann 2011), this is the 62th species reported from the country. To explain this range extension we provide a map on the known distribution of the two Megaperlodes species (Fig. 2).Published as part of Murányi, Dávid & Hwang, Jeong Mi, 2015, Just Like Birdwatching: The First Record Of Megaperlodes Tiunovi Teslenko 2015 (Plecoptera: Perlodidae) From Korea, pp. 126-129 in Illiesia 11 (10) on pages 127-128, DOI: 10.5281/zenodo.475770
Arcynopteryx angarensis Teslenko & Zhiltzova, sp. n.
No full textArcynopteryx angarensis Teslenko & Zhiltzova, sp. n. (Figs 1–12). Description of the general body color is given for dry, pinned specimens; descriptions of male, female, and egg for alcohol-preserved specimens. The head and pronotum are yellowish-brown, contrasting with the maroon meso- and metanotum and the dark brown abdomen. In front of the pale M-line, a dark spot projects onto the clypeus. This spot is more pronounced in females than males (Fig. 1). Behind the pale M-line, a brown M-shaped band is present, the lateral branches of which are light brown, and medially dark brown. Dark brown stripes connect the anterior and lateral ocelli. The interocellar area exhibits a triangular pale spot that is connected to a semicircular pale spot on the occiput medially. Two oblique, brown bands with a curlicue at the apex extend from the occiput along the epicranial suture towards the compound eyes, but these bands do not quite reach the eyes (Fig. 1). The tentorial pits in front of the lateral ocelli are pale. Behind each compound eye is a dark posterolateral spot, with slightly darkened occipital lateral margins (Fig. 1). The female has a monochrome brown occiput, except for a medial semicircular pale spot. The antennae and palpi are grayish-brown, and the basal antennal segments are brown. The submental gills are long. The pronotum is yellowish-brown, with thin, blackish margins, and a broad, median yellow band that is widest in its basal third (Fig. 1). The pronotal rugosities are dark brown. The meso- and metascuta are maroon. The mesosternal Y-arms reach the anterior corners of the furcal pits. The abdomen is dark brown, each dorsal segment covered by long, grayish hairs positioned posterolaterally. Legs are brown, tarsi – dark brown. The cerci are longer than the abdomen, with long colourless hairs; the basal cercal segments are brown, the apical cercal segments are blackish in their distal half. Males and females are macropterous. The forewing is long, narrow, pale gray, transparent, yellowish apically, with brown veins, and pale yellow C. The venation includes an irregular net near the apex, sometimes consisting of three rows of cells (Fig. 2). Three cross veins occur between C and Sc, and four apical veins occur between Sc and R 1. Rs have four apical branches. Four veins occur between М and Cu 2; three anal veins are present. The hind wing anal area is large, and A 2 and A 5 are forked (Fig. 2). Male. Body length 14.3−16.2 mm, forewing 12.8−14.6 mm, wingspan 28.1−32.3 mm. The abdominal tergum 9 exhibits a thin, membranous, pale median line (Fig. 3). The posterior margin has a medial arcuate notch which runs 1 / 3 of the length of tergum 9, and two submedial, transversely elongated and rounded swellings, which are covered by small stout setae close to the notch, and by long fine colorless hairs posterolaterally (Fig. 3). Sternum 9 is light brown medially, scoop-shaped, extended backward and curved upward (Fig. 6). Tergum 10 is divided into two hemiterga (Fig. 3). The hemitergal lobes in a dorsal view are elongated, flattened, directed medially, and are not in contact mesoanteriorly (Figs 3 & 4). Each hemitergal lobe bears a tear-shaped knob that is widest anteriorly (Figs 3 & 4). The knob is dorsally flat and pale, ventrally darkly sclerotized, and covered by a few small, stout setae (Figs 3–6). The cowl opens dorsally in a slit; the cowl is membranous, folded. It resembles a deep pouch between and under the hemitergal lobes and is attached around the base of the epiproct and the internal basal anchor (Figs 3, 5 & 6). The dorsolateral edges of the cowl are large, supported by flat sclerotized paragenital plates and by tops of the lateral sclerotized bands (Figs 3 & 5). In lateral view, the lever arm of the epiproct is slightly arcuate and terminates in a vertical, long, slightly sclerotized plate, the top of which serves as a place for the attachment of the loop of the stylet and two sclerotized bands (Fig. 5). The stylet of the epiproct resembles a strong, long, fine bristle directed upward and backward; the base of the loop of the stylet is wide (Fig. 5), and occupies half of the length of the vertical plate (Fig. 5). The two lateral sclerotized bands narrowed at the base, are more sclerotized dorsally than laterally, and have a small mesal mound on the dorsal surface; the tops of the lateral sclerotized bands are narrowed and rounded, directed obliquely forward (Fig. 5). The everted aedeagus is membranous, bears a large median lobe, and two small dorsolateral lobes. A large prolonged median lobe is narrowed to the tip, which is rounded and down curved. In lateral view, the aedeagal apex resembles a rounded claw, covered by fine, erect, clear spinules dorsolaterally and ventrally (Figs 6 & 7). A pair of small dorsolateral lobes directed backward, the lobes are not fully everted (Fig. 6). Female. Body length 16.0−17.3 mm, forewing 17.0−17.3 mm, wingspan 37.0−37.6 mm. The subgenital plate is large and pale, extends laterally from the sides of sternum 8, sometimes reaching almost half the length of sternum 9 (Fig. 8). The posterior margin of the subgenital plate has a deep notch that separates two triangular, laterally sloped, and rounded lobes. The subgenital plate is covered with small, colorless setae. Sternum 9 is pale medially, with two dark brown circular spots mesolaterally (Fig. 8). Egg oval, circular in cross-section (Fig. 9), 303−345 x 230−255 µm. The mushroom-shaped anchor covers the collar completely (Fig. 9). The collar sits on a flattened, shelf-like area surrounded by a basal ring (Fig. 10). The collar is stalked, its rim flanged and fairly regularly incised, with low shoulder (Fig. 10). The chorion is covered with hexagonal FCIs (Figs. 9 & 11). The FCIs are delimited by shallow punctate walls. Their punctures are less deep than the 7-8 punctations that often occur on the flat floors of the FCIs (Fig. 11). The row of micropyles is subequatorial; orifices are small and lipped, without micropylar mounds (Fig. 12). There is no eclosion line. Material examined. Holotype, male. Russia. Angara River, vicinity of Mikhalevo settlement, Irk. (utskaya) g. (uberniya) (52 º4.10'N 04º26.51'E), 7.06. 1925, coll. Vereshchagin. Paratypes: 5 males, 2 females, the same locality as holotype; 4 males and 3 females, at the source of Angara River, 11.07. 1930, coll. P. Rezvov (alcohol); 9 males and 7 females, Irkut. (skaya) g. (uberniya) and u. (ezd) Angara isls. (islands) between Pashkovo and Mikhalevo settlements, 20.06. 1924, coll. Vinogradov (pinned). Etymology. The name refers to the type locality, the beautiful Angara River (Lake Baikal Basin), where the types were collected. Distribution. The species is known from the source of Angara River, the river which outflows from the deep and ancient Baikal Lake, situated in the southern part of Eastern Siberia within the Republic of Buryatiya and ‘Irkutsk oblast’ of Russia. Arcynopteryx angarensis is considered a rare species, with a local area of distribution in the source of the Angara River. No specimens are known to have been collected since 1930. Diagnosis. Arcynopteryx angarensis can be readily separated from the other four described Arcynopteryx species by the shape of the aedeagus, lateral sclerotized bands in the cowl, and the hemitergal lobes. In particular, the tear-shaped knob on the top of each male hemitergal lobe (Figs. 3–6) is distinctive. The male hemitergal lobes of A. polaris and A. amurensis are simple, without knobs (Teslenko 2012, figs. 14, 16, 23, 26). The male hemitergal lobe of A. sajanensis is short, bears a small rectangular projection on the inner mesal edge, and short, rounded knob (Teslenko 2012, figs. 31, 32). The hemitergal lobes of A. dichroa are wide, with lobed apices, apical margins prolonged and rounded, well sclerotized; the lobes are in contact mesoanteriorly; each hemitergal lobe bearing an erect knob close to the anterior hemitergal margin (Stark & Szczytko 1988, Kondratieff 2004, Teslenko 2012, figs. 2, 3 & 5). Arcynopteryx angarensis males are similar to those of A. amurensis, A. polaris, and A. sajanensis, with the stylet of the epiproct directed upward, backward and downward (Figs. 3 & 6) (Zhiltzova & Levanidova 1978, Klapálek 1912, Zapekina-Dulkeit 1960). The top of the stylet of the epiproct in A. dichroa is directed upward, or upward and forward, with a direction very different from that of the other Arcynopteryx species. The female subgenital plate of A. angarensis is distinguished from other Arcynopteryx species by the deep notch that separates two triangular, sloped laterally, apically rounded lobes (Fig. 8). The shape of the subgenital plate of A. dichroa is variable, but the posterior margin of the plate has a shallow notch that separates two small lobes, or two shallow notches with three lobes. The posterior margin of the A. polaris subgenital plate is straight or exhibits a shallow notch that separates two triangular, short, sloped laterally, and rounded lobes. The subgenital plates of A. amurensis and A. sajanensis are very specific, however their posterior margin is medially smooth (Zhiltzova 1978, Zapekina- Dulkeit 1960). The eggs of A. angarensis differ from those illustrated for A. amurensis, A. dichroa, A. polaris and A. sajanensis (Stark & Szczytko 1988, Teslenko 2012) by the very short collar and the number of punctations in the flat floors. The egg of A. angarensis is reminiscent of the egg of A. polaris in similar shape, size, and irregular hexagonal FCI’s on the chorion surface, but differ in depth of punctations on the FCI walls and flat floors. The FCI walls of A. polaris are raised with thin, deep furrows; the flat floors often contain 7–13 punctations, of the same depth as punctures on the walls. The punctations on the flat floors of A. angarensis are deeper than those on the walls (Fig. 11). Flat floors often contain 7–8 punctations. Arcynopteryx angarensis is distinguished also by the pigment pattern on the head; especially by two oblique, brown bands with a curlicue at the apex that extend along the epicranial suture towards but not reaching the compound eyes (Fig. 1).Published as part of Teslenko, Valentina A. & Zhiltzova, Lidia A., 2012, A new rare species of Arcynopteryx (Plecoptera: Perlodidae) from the basin of Lake Baikal (Russia), pp. 57-62 in Zootaxa 3427 on pages 58-60, DOI: 10.5281/zenodo.21046
Neoperla zhiltzovae Teslenko, sp. n.
No full textNeoperla zhiltzovae Teslenko, sp. n. (Figs 1–10). Description. The general body color of alcohol-preserved specimens collected more than 10 years ago is pale yellow brown. Biocellate. The head is mostly pale yellow with indistinct red brownish spots: one semicircular spot is in front of the ocelli; the second V-shaped spot projects onto the clypeus in front of the M-line; two short horizontal stripes present below the M-line (Fig. 1). The lateral margins of the frons are pale, widened, rounded, and turned up slightly. The palpi and middle antennal segments are pale yellow; the basal and apical antennal segments are brown. The pronotum is pale yellow, with thin brown stripes posteriolaterally and obscure brownish median band and rugosities (Fig. 1). The meso- and metascuta are pale, with brownish pattern. The abdomen is pale yellow with brown pattern dorso-laterally, more pronounced in males than in females on segments 1-6; the abdominal segments 9–10 of females are of uniform brownish color. The cerci are brownish basally, their middle parts are pale, and the apical cercal segments are brown. Legs are pale yellow, tibia with brownish basal band, the tarsi are brown. Wings are transparent, veins and costal areas are pale amber. Male. Body length 10.0−10.5 mm, forewing 11.0−12.5 mm, wing span 23.2−26.2 mm. The posterior margin of the abdominal tergum 7 extends into a rounded and elevated process armed with numerous reddish sensilla basiconica (Fig. 2). Tergum 8 possesses an erect, triangular mesal sclerite narrowed to the base, curved forward and upward, darkly sclerotized ventrally; the distal margin of the mesal sclerit with rounded angles which bear sparse patches of ca. 7 sensilla basiconica (Fig. 3). Tergum 9 is short, without sensilla patches, covered with long fine hairs. On tergum 10, each hemitergal lobe has an oval patch of numerous sensilla basiconica meso-posteriorly (Fig. 3). The hemitergal process resembles the letter S, with relatively deep obtuse notch at midlength; the top is narrowed and rounded, directed inward, reaching the mesal sclerite (Figs 2 & 3). The aedeagal tube is plump, angled dorsally near midlength; the base of tube bent dorsad at a blunt angle near midlength, the dorsal side with unpaired hump in the distal third, the distal margin is oblique (Fig. 4). The everted aedeagal sac is curved, fingerlike, approximately 1.5 times as long as the tube, the entire surface armed with fine spines and with spines of different size and shape: slender spines grouped dorsomedially in an irregular double row from the base along almost half of the sac length with ca. 20 spines in each row; a patch of the largest spines covers the dorsodistal margin of the sac; two rows of stout spines with rounded apex occur laterally with 15–17 spines in each row; a double row of hook-like spines extends ventromedially near the apex of the sac with ca. 10 spines in each row (Figs 4–6). Probably the sac is not fully everted, but the inverted part lacks an armature (Fig. 4). Female. Body length 11.0−11.5 mm, forewing 13.4−14.0 mm, wing span 28.3−29.6 mm. The subgenital plate is wide, short, and extends over sternum 9 slightly (Fig. 7). The posterior margin of the subgenital plate is straight with a median weakly sclerotized and rounded process, expanded at the base and apex and narrowed mesolaterally (Figs 7 & 8). Vagina horseshoe-shaped ventrally, formed by numerous membranous papillate folds; its dorsal part comblike (Figs 8 & 9); each side of the comb bears a row of strong sclerotized pectinate semi-oval bands, attached to the membranous folded part laterally and anteriorly, each row with ca. 5 bands (Figs 8 & 10). A heart-shaped unarmed sclerite underlies the spermathecal base (Fig. 10); spermathecal stalk is short and slender; spermatheca sausage U-shaped, curved in the first third of the length and widened basally and apically (Figs 8–10), entire surface armed with fine, sharp spinules. Egg. No mature egg available. Larva. Unknown. Material examined. Holotype, male. Russia. Third Ilistaya River, Khanka Lake Basin, near Vadimovka Settlement, 44 º21.5'N 132 º24.50'E, 17.06. 2001, coll. Lyubaretz V. Paratypes: 2 males (dissected in vial), 2 females, the same locality and data as holotype. Etymology. The species is named in honour of Lidia Andrejevna Zhiltzova (St. Petersburg), in recognition of her outstanding contributions to the knowledge of stoneflies in the Russian Far East. Distribution. The species is known from the mouth of the Third Ilistaya River, which flows down to the Ilistaya River in the Khanka Lake Basin in the Primorsky Region of the southern Russian Far East. The lake belongs to the Ussuri River system which itself is part of the Amur River system. Lake Khanka (Xingkai in Chinese) is the largest lake in Northeast Asia and is located on the border of China and Russia. It is probable that the distribution of N. zhiltzovae is not restricted to the Russian part of the Khanka Lake Basin, but this hypothesis requires confirmation. Diagnosis. Neoperla zhiltzovae is associated with N. montivaga group (Zwick 1983), where there are a few East Asian species in which the shape of hemitergal process, aedeagus, and aedeagal armature on the sac are similar to N. zhiltzovae. Thus male of N. lii Du from Fujian Province of China has straight, long hemitergal process, and many large black triangular spines on the sac on the ventral and dorsal surfaces, unfortunately no detail of the spines arrangement is given (Du, 1999). The aedeagal sac of N. idella Stark & Sivec from Vietnam is armed along dorsoapical margin with a double row of 4–7 cultriform spines; most of apical half of the sac covered with smaller spines. The hemitergal processes strongly bent and upturned at midlength (Stark & Sivec 2008). The aedeagal armature of N. laotica Zwick also from Vietnam consists of many minute spines on convex face and two rows of very strong curved hook like spines on the venter of sac. The anterior part of the hemitergal process is straight, very short, and blunt (Zwick 1988). Neoperla zhiltzovae can be easily separated from three above species by the aedeagal armature dorsomedially, with slender spines arranged in an irregular double row with ca. 20 spines in each row; the largest spines covered the dorsodistal margin of the sac; two rows of stout spines with rounded apex occurred laterally, with 15–17 spines in each row; a double row of hooklike spines extended ventromedially near apex of sac, with ca. 10 spines in each row (Figs 4–6). The hemitergal processes of N. zhiltzovae is distinctive resembling a letter S with deep obtuse notch at midlength and the top directed inward, narrowed, and rounded (Figs 2 & 3). The female subgenital plate of N. zhiltzovae is distinguished from other Neoperla species by weakly sclerotized and rounded process slightly expanded at the base and apex, and narrowed mesolaterally (Figs 7 & 8). Usually the females of other Neoperla species have unmodified or bilobed with notch of different depth subgenital plates. The dorsal part of N. zhiltzovae vagina is also very specific. It is comb-shaped and has a double row of strong sclerotized pectinate semi-oval bands with ca. 5 bands in each row (Figs 8–10).Published as part of Teslenko, Valentina A., 2012, A new species of Neoperla (Plecoptera: Perlidae) from the southern region of the Russian Far East, pp. 79-83 in Zootaxa 3526 on pages 80-81, DOI: 10.5281/zenodo.28274
A new species of Megaperlodes Yo k o y a m a et al. 1990 (Plecoptera, Perlodidae) from the South of the Russian Far East
No full textTeslenko, Valentina A. (2015): A new species of Megaperlodes Yo k o y a m a et al. 1990 (Plecoptera, Perlodidae) from the South of the Russian Far East. Zootaxa 3904 (4): 553-562, DOI: 10.11646/zootaxa.3904.4.
Capnia yavorskayae Teslenko & Semenchenko 2022, sp. nov.
No full textCapnia yavorskayae Teslenko sp. nov. (Figs. 1–7) Material examined. Holotype: female, Russia, Far East, Khabarovskiy Kray, Komsomolskiy State Nature Reserve, Khankuka Stream Basin, Gorin River Basin, Amur River Basin, 50º76.818 N, 137º42.157 E, 14.05.2020, coll. N. Yavorskaya. Paratypes: 2 females the same place and data as holotype; 21 females, Khankuka Stream, low part, Gorin River Basin, Amur River Basin, 14.05.2020, coll. N. Yavorskaya; 1 female, quarry on the road 50º75.695 N, 137º41.273 E, Amur R. Basin, 14.05.2020; 3 females (2 in slides) unnamed stream near Kamennaya Pad cordon, Amur River Basin, 50°41’ N, 137°14’ E, 14.05.2020, coll. N. Yavorskaya; 2 females, Siutaru Stream, Gorin River Basin, Amur River Basin, 19.05.2020, coll. N. Yavorskaya. Diagnosis. Female subgenital plate short, transverse, truncated posteriorly, occupies anterior half of the sternum 8; unevenly pigmented, anterolateral edges pale, posterior margin straight or slightly rounded medially, and strongly sclerotized; inner sclerite of vaginal complex small, tooth-shaped, and black. Two or three thin transverse shallow membranous folds and a pair of lateral sclerites located below posterolateral margin the subgenital plate. Genital opening of the vaginal complex is broad. Description. Medium-sized species, body length 5.2–6.2 mm (n=7), darkly sclerotized, and overall brown color (Figs. 1, 4–6). Setation is dense and long, especially on abdomen and cerci (Figs. 1, 4–6). Antenna is moderately long, with 31 or more segments. Cercus slender and hairy, shorter than the abdomen length, with 11 or more club-shaped segments; third basal segment as long as wide, further ones are gradually elongated (Figs. 5, 6); apical cercal segments are the longest with their length about three times of their width, intercalary setae are dense and short (Fig. 1). Wings shortened, forewing length 4.3 – 4.6 mm, wingspan 9.6‒10.2 mm; brownish along radial field, veins dark brown, margins with relatively long brown bristles (Figs. 2, 3). R 1 of forewing typical of Capnia, bent upward at its origin, four cross veins between C and Sc. Rs bears two apical branches, two veins between М and Cu 2 ; anal veins two (Fig. 2). Hindwing paler than forewing, veins brownish (Fig. 3). Mesothoracic sclerite (Fig. 4) from ventral view features narrow spinasternum (Sс), not fused with prothoracic postfurcasternum (PPfs) and large basisternum (Bs); median-sized subtriangular presternum (Prs) not fused with basisternum; subtriangular furcasternum (Fs) fused with basisternum, furcasternal arms (Fsa), and furcasternal pit (Fsp); postfurcasternum (Pfs) divided into two lateral, suboval sclerites not fused with others; katepisternum (Kes) separated from basisternum and trochantin (Tn). Abdominal terga 1−8 brown with broad longitudinal membranous areas along the midline, integument light, matte in appearance. Terga 9‒10 are fully sclerotized. Abdominal sterna 1 – 7 with paired unsclerotized paralateral bands, sternum 7 slightly longer than others (Figs. 5, 6). Sternum 8 has a short, transverse subgenital plate, truncated posteriorly, length does not exceed ½ the length of the sternum 8 (Figs. 5, 6). An oval, unevenly pigmented spot occupies most of the subgenital plate, with pale anterolateral edges. Posterior margin strongly sclerotized, straight or slightly rounded medially, covered posterolaterally with long setae, and overlapping a small tooth-shaped black inner sclerite (Figs. 5, 6). Two or three thin transverse shallow membranous folds are below the subgenital plate. A pair of lateral sclerites located below posterolateral margins of subgenital plate at the membranous half of sternum 8 and do not exceed the length of sternum (Figs. 5, 6). Vaginal complex with broad genital opening, membranous genital cavity reaches the middle of the segment 7 where it branches into the oviducts (Fig. 7). Affinities. Based on external female morphology, no closely related species are indicated. The noticeably short and truncated subgenital plate is not similar to other Capnia species, and only remotely resembles that of C. kurnakovi, from the Kolyma River Basin, North-East Russia (Zhiltzova 1978). Сapnia kurnakovi has a shortened subgenital plate but posterior obtuse-angled margin, its base and medial parts are dark, thin and transverse; and membranous folds below the subgenital plate are absent. Distribution and ecology. The Gorin River is a left tributary (facing downstream) of the Amur River (the Low Amur Basin) about 390 km long. It flows in the Komsomolskiy State Nature Reserve in the Khabarovskiy Kray, of the Russian Far East. The mountain ranges belong to the Sikhote-Alin folded region. Capnia yavorskayae sp. nov. was collected in tributaries of the Gorin River downstream: in the Khankuka Stream (13 km long, altitude 360 m above sea level), Siutaru Stream (13 km long, 480 m above sea level), and small unnamed stream in tract Kamennaya Pad, which flows down in Amur River independently (Figs. 9–11). Stream water temperature did not exceed 5–7°C. Capnia yavorskayae sp. nov. seems to be a cold stenothermal species occurring in small mountain streams at altitudes of 300–500 m above sea level. The flight period is difficult to understand from the collection method and narrow window of time it was in operation; all females were collected between 14–19 May, and at that time appeared to be nearing completion. The new species was collected along with females of C. khingana, Capniella nodosa Klapálek, 1920, Paracapnia leisteri Zhiltzova and Potikha, 2005, and males and females of Paraleuctra cercia (Okamoto, 1922) (Klapálek 1920, Potikha and Zhiltzova 2005, Okamoto 1922). Etymology. The new species is named for Nadezhda Yavorskaya, a Russian chironomidologist, who actively collects stoneflies, including this interesting species.Published as part of Teslenko, Valentina A. & Semenchenko, Alexander A., 2022, Morphological description of a new species of Capnia (Plecoptera: Capniidae) with DNA barcoding of genus members from the Russian Far East, pp. 133-141 in Zootaxa 5155 (1) on pages 135-138, DOI: 10.11646/zootaxa.5155.1.7, http://zenodo.org/record/666935
Perlodinella kuenluensis Teslenko & Palatov 2023, comb. nov.
No full text<i>Perlodinella kuenluensis</i> (Šámal, 1935) comb. nov. <p>Figs. 23–34</p> <p> Šámal, 1935: 221, figs. 1a, b, <i>Perlodes (Megarcys) kuen-luensis.</i> Dry specimens one male and one female with red labels ‘Typus’ from Coll. Zôlogisch Museum Amsterdam deposited in Naturalis, Leiden, the Netherlands. Claassen, 1940: 113 <i>Perlodes kuen-luensis</i>; Brinck, 1950: 137, figs. 3A, 3C, <i>Perlodes</i> (<i>Perlodinella</i>) <i>kuen-luensis</i>; Ricker, 1952: 140, <i>Skobeleva</i> (<i>Megarcys</i>) <i>kuen-luensis</i> incorrect original spelling; Brinck, 1954: 137, <i>Skobeleva kuenluensis</i>; Illies, 1966: 389, <i>Skobeleva kuenluensis</i>; Zwick, 1973: 229, <i>Filchneria kuenluensis</i>; Li & Murányi, 2015: 51, <i>Filchneria kuenluensis</i>.</p> <p> <b>Diagnosis</b>. <i>Filchneria kuenluensis</i> is a fairly dark species, having an oval narrow pale spot in the interocellar area. The male of <i>F. kuenluensis</i> is distinguished by the shape of the posterior margin of tergum 10 which is strongly elevated and drawn out, appearing as a conical hood, pointed at the apex, and covered with sensilla basiconica dorsally. The paraproct is finger like and paraproctal sclerite bears a hook near to the rounded top. The female is distinguished by a strongly sclerotized triangular bilobed subgenital plate that is expanded posteriorly. The posterior margin of the subgenital plate has a triangular notch in the middle dividing two triangular lobes. The posterolateral edge of each lobe is rounded and slightly drawn downward laterally.</p> <p> <b>Supplementary description.</b> The original description of <i>F. kuenluensis</i> was carried out on male and female syntypes as <i>Perlodes (Megarcys) kuen-luensis</i>, including sizes and color pattern (Šámal 1935). Later, Brink (1950) pointed out briefly the male paraproct structures which were omitted in the original description. A supplementary description of the type material, taking into account its age and state of preservation is given below.</p> <p>Head brown with a dark brown M-line; median interocellar area dark brown with an oval narrow pale spot (Figs. 23, 30). Occipital area is brown. Pronotum dark brown with even darker narrow strip along anterior and posterior margins, rugosities are dark brown (Figs. 23, 30). Lateral arms of meso-furcasternum meet posterior corners of furcal pits (Fig. 28).</p> <p> <b>Male.</b> Syntype (Fig. 27). Abdominal terga 7–9 swollen posterolaterally, posteromedial margins covered with sensilla basiconica and very long brown hairs (Fig. 26). Tergum 10 entire, in lateral view with strongly elevated and drawn out posterior margin, appearing as conical hood, pointed at the apex, and covered with sensilla basiconica dorsally (Figs. 24–26). Paraproct finger-shaped, swollen, narrowed distally, and rounded at the top (Figs. 24, 25). The paraproctal sclerite wide and heavily sclerotized basally, in apical half paraproctal sclerite slender, bears hook directed outward (Fig. 25). Naturally everted aedeagus looks like a membranous tube with a pair of lateral lobes at the base, ventrally, aedeagal apex narrowed, funnel-shaped with cuticular swellings (Fig. 24).</p> <p> <b>Female.</b> Syntype (Fig. 34). Abdominal sterna are pale-brown (Figs. 31, 32). Subgenital plate strongly sclerotized, triangular, bilobed expanding posteriorly, and occupying about half of sternum 8 width, and one third of sternum 9 lengths (Figs. 31, 32). The posterior margin with a triangular notch in the middle divides plate into two triangular lobes. The posterolateral edge of each lobe is rounded and slightly drawn downward laterally (Fig. 32). Sternum 9 bears brown patch on each side.</p> <p> <b>Egg.</b> Trilateral, broadly oval, longitudinal ridges delimit the three sides. Apparently there is a collar (Fig. 33). Other details and the chorion structure are indistinctive.</p> <p> <b>Material examined.</b> Coll. Zôlogisch Museum Amsterdam. Typus. Male. ZMA. INS. 5101771. <i>P. kuen-luensis</i>. Typus. Female. ZMA. INS. 5101021. <i>Perlodes kuen-luensis</i>. <i>Filchneria kuenluensis</i> (Šámal). Between Sanju Basar & Suget-Karaul, 1880–3600 m, 19–31. V.1930. Nederlandsche Karakorum Expeditie, J. A. Sillem leg. Det. Dr. Šámal. Det. P. Zwick 1979 (Naturalis).</p> <p> <b>Distribution.</b> The species is only known from the types collected in Tibet Plateau, Kunlun Mountains, China, Xinjiang, between Sanju Bazar and Suget Karaul (the modern 'Saitula' town).</p> <p> <b>Remarks.</b> The shape of the posterior margin of tergum 10 of <i>F.kuenluensis</i> male resembles that of <i>F.mesasiatica</i>; however, the paraproctal sclerite of <i>F. mesasiatica</i> lacks an apical hook. The male of <i>Zhiltzovaia amabilis</i> (Jewett, 1958) has the paraproct sclerite with a narrow, truncated knob dorsally and larger rounded knob ventrally, while in <i>F. kuenluensis</i> the ventral knob at the base of the cerci was not found (Fig. 24). The male of <i>F. kuenluensis</i> in shape of tergum 10 and the paraproct structure is similar to that of <i>Perlodinella kozlovi</i> Klapálek, 1912 (Fig. 29) and to <i>Perlodinella apicalis</i> Kimmins, 1947 consistent with Brink (1950), who assigned <i>F. kuenluensis</i> on these features to typical <i>Perlodinella</i> (Klapálek 1912). Since, according to recent publication (Huo <i>et al.</i> 2022) a clawlike process in the apical part of paraproctal sclerite is one important diagnostic feature of the <i>Perlodinella</i>, we proposed to transfer <i>Filchneria kuenluensis</i> to <i>Perlodinella</i> with the valid name <i>Perlodinella kuenluensis</i> (Šámal, 1935) <b>comb. nov.</b></p>Published as part of <i>Teslenko, Valentina A. & Palatov, Dmitry M., 2023, Redescription of a few Filchneria Klapálek, 1908 (Plecoptera, Perlodidae) species on the type and fresh material, pp. 287-312 in Zootaxa 5277 (2)</i> on page 295, DOI: 10.11646/zootaxa.5277.2.3, <a href="http://zenodo.org/record/7889837">http://zenodo.org/record/7889837</a>
Lectra adjariae Teslenko 2019, sp. n.
No full textLectra adjariae Teslenko sp. n. (Figs 1–13) urn:lsid:zoobank.org:act: 711EAB15-5DB4-4F36-ADFA-F588D1B2B3A8 Material examined. Holotype male. Georgia. Adjaria. Kintrishi River, 16 km upstream from Kobuleti and 4 km upstream from Tchakhati Village, 41°47.192 N 41°57.390 E, 0 6.02.2017, coll. D. Palatov (FSC EATB FEB RAS). Paratypes: 2 males (one mounted), 3 females (one mounted), same locality and date, coll. D. Palatov (FSC EATB FEB RAS). Description. Body length of males 3.5–4.0 mm, females 4.0–5.0 mm. Apterous species in both sexes. General color brown, sclerotization heavily, body covered with pilosity, visible mainly in lateral view (Fig. 4). Palpi, head, pronotum, meso-, metanotum and legs uniformly brown, dark brown rugosities on the occiput and pronotum (Fig. 2). Head bears two small, barely visible lateral ocelli, the median ocellus indistinct, difficult to distinguish. Prothoracic sternum of male with diamond-shaped basisternum (b 1), furcasternum (f 1) is a pair of diverging bars, postfurcasternum (p 1)—a large elliptical and medially subdivided sclerite, spinasternum (s 1) obscure, appears as a small round sclerite surrounded by pleurae, (Fig. 3). Mesothoracic sternum bears basisternum (b 2) much wider than that on the prothoracic sternum, with two triangular anterolateral processes; furcasternum (f 2) separated from the basisternum by distinct arms; postfurkasternum (p 2) as a pair of sclerotized rounded triangle sclerites laterally to furkasternum arms (f 2) not fused to furcasternum; spinasternum (s 2) narrow elongated (Fig. 3). Male. Terga I-VII simple, each tergum with heavily sclerotized anterior margin and semicircular paramedian membranous area, increased in size posteriorly to tergum VIII and covered by dense, long black setae (Fig. 5). Tergum VIII bears indistinct weakly sclerotized anteromedial process looking like a pair of short slightly pigmented fan-shaped spots, closely separated, directed backward and covered by long black setae (Fig. 5). Tergum IX mostly membranous with distinct antecosta, divided medially for more than ¼ of segment width; posteromedial sclerite consists of paired small prolonged pigmented spots covered with long, black setae (Figs. 5, 6). Posterior margin of tergum X with wide and deep median notch, each lobe bears pointed process at posterior inner margin, directed inward and oblique backward in dorsal view and risen in lateral view (Figs. 4–7). Epiproct rounded, mushroom-shaped, membranous with pigmented stalk (Fig. 7). Cerci are very specific, each cercus large, wide, scoop-shaped, gently bent inward and upward, hardly sclerotized on outer edge; the inner part membranous, covered with long black setae, denser than on the outer edge; apex wide, with slight depression on edge (Figs. 4–6, 8). Paraprocts stout (Figs. 4, 9), styles 2.25X shorter than specilla (Fig. 9). Styles with wide base; narrowed and curved sideward near the apex, and ending in rounded tip (Figs 5–7, 9). Specilla long gently bent inward apically in dorsal view, narrowed to the apex and ending in a sharp point (Figs. 5, 6, 8, 9). In lateral view the apex of specilla pointed and directed upward (but downward as shown in Fig. 4 since the abdomen curved, in mating position). Sternum IX with U-shaped unsclerotized area, no ventral vesicle (Fig. 2). Female. Terga II-VI with dorsal sclerite and pair of unsclerotized paramedian bands, the size of dorsal sclerite increasing to tergum VI; terga VII-X completely sclerotized. Sternum VII convex, very large and strongly sclerotized, almost trapezoidal with truncated anterolateral margins, anterior margin slightly concave, posterior margin broadly rounded, overlapping the anterior margin of sternum VIII and partly hiding the base of subgenital plate (Fig. 10). Subgenital plate triangular, prolonged, reaches anterior margin of sternum IX: a wide, triangular, unpigmented base delimited by a pair of small sclerotized sports anterolaterally, the second pair of small pigmented spots supports the plate laterally in the first ¼ of its length; further to the subgenital plate narrowing, ending in a pair of sclerotized finger-shaped prolonged posterior lobes, shortly bifurcated at the apex and directed slightly sideward; apex with membranous area mesoposteriorly (Fig. 10). Subgenital plate covered with long setae especially in less pigmented part between sclerotized finger-shaped lobes, along inner edges of the lateral sclerites and on posterior margin (Fig. 11). Sternum IX has two pairs of small triangular, membranous spots and one pair of sclerotized rounded spots between distal tops of each pair of membranous spots, below the subgenital plate (Fig. 10). Seminal receptacle spheroid enclosing spermathecal ring-shaped slightly sclerotized sclerite with pair of lateral pointed arms (Figs. 12, 13). Diagnosis. Apterous in both sexes. Terga of male I-VII simple, with heavily sclerotized anterior margin and semicircular paramedian membranous area, increased in size posteriorly to tergum VIII. Tergum VIII bears a pair of anteromedial, short, slightly pigmented fan-shaped spots, covered by long black setae. Tergum IX with distinct antecosta, posteromedial sclerite consists of paired small prolonged pigmented spots covered with long, black setae. Tergum X with wide and deep median notch, each lobe bears very specific pointed process at posterior inner margin. Epiproct large, rounded, mushroom-shaped, membranous with pigmented stalk. Cerci large, wide, scoopshaped, bent inward and upward, apex wide, with slight depression. Paraprocts strong, styles shorter than specilla, narrowed and curved sideward near the apex. Specilla long, narrowed to the apex, ending in a sharp point. Ventral vesicle is absent. Female subgenital plate also conspicuous: a triangular, prolonged, reaches anterior margin of sternum IX, with a wide, triangular, unpigmented base delimited by two pairs of small sclerotized sports anterolaterally and laterally, with a pair of sclerotized finger-shaped prolonged lateral lobes shortly bifurcated at the apex. Affinities: According to the shape of processes and pigmented spots on the male abdominal terga, the structure of male epiproct and paraprocts, L. adjariae appears to belong to the hippopus species group (Ravizza & Vinçon 1998, Ravizza 2002). However, the indistinct, short, fan-shaped processes on tergum VIII, paired pointed process at posterior inner margin of tergum X and other features mentioned in diagnosis, readily distinguish L. adjariae males from all congeners. No closely related species are indicated based on external morphology. In the male, a pair of pointed processes of tergum X are unique and they only resemble those of male of Alpine-Carpathian L. autumnalis Aubert, 1948. The short styles of the paraprocts of L. adjariae are also unusual in the hippopus group, that are only shared with L. tarnogradski and L. dispinata, both species with short styles (Zhiltzova 2003). The triangular, prolonged subgenital plate of female is not similar to other Leuctra species and only remotely resembles members of the brevipennis sub-group, hippopus group, e.g. L. vinconi aubertorum Ravizza & Ravizza Dematteis, 1994 or L. vinconi vinconi Ravizza & Ravizza Dematteis, 1993, found in the western Alps of Switzerland and Italy (Ravizza, 2002) and another apterous species L. kumanskii Braasch & Joost 1977 from the Balkan Mountains, Bulgaria. Distribution. Leuctra adjariae was collected at a single locality along the Kintrishi River near the town of Kobulety in Adjaria, in southwestern Georgia. The Autonomous Republic Adjaria, a historical, geographic and political-administrative region of Georgia, borders Turkey to the south and the eastern edge of the Black Sea (Fig. 25). The Kintrishi River drains the western slopes of Meskheti Range (Lesser Caucasus) into the Black Sea. At the type locality, where the altitude does not exceed 180-190 m a.s.l, the Kintrishi River flows through a canyon, with a width 5- 6 m. The water level increased 0.3 m during flooding, but was clear, flowing at 0.3-0.9 m /s (Figs. 27, 28). Adults of L. adjariae were walking on the snow (Fig. 26). Etymology. This species is named after Adjaria, region of Georgia, where it occurs.Published as part of Teslenko, Valentina A., Palatov, Dmitry M. & Semenchenko, Alexander A., 2019, Description of new apterous winter species of Leuctra (Plecoptera: Leuctridae) based morphology and DNA barcoding and further records to stonefly fauna of the Caucasus, Georgia, pp. 546-560 in Zootaxa 4585 (3) on pages 548-552, DOI: 10.11646/zootaxa.4585.3.9, http://zenodo.org/record/264027
Zhiltzovaia amabilis Teslenko & Palatov 2020, comb. nov.
No full textZhiltzovaia amabilis (Jewett, 1958) comb. nov. (Figs. 1–28) Jewett, 1958: 327, fig. 9 (Perlodes amabilis); Aubert, 1959: 86–88, figs. 81–86 (Perlodes (Skobeleva) cachemirica); Illies, 1966: 309 (Skobeleva cachemirica) (catalog); Illies, 1966: 512 (Perlodes amabilis) (catalog); Zwick, 1973: 229 (Filchneria amabilis comb. nov.) (catalog); Zwick, 1973: 229 (Filchneria cachemirica comb. nov.) (catalog); Jewett, 1975: 5, 7, figs. 4, 4A (Skobeleva amabilis); Zwick & Sivec, 1980: 112, Filchneria amabilis; Zhiltzova, 1994: 45–47, figs. 1–5 (Aubertiana cachemirica comb. nov.); Das, 1995: 36, (Skobeleva amabilis); Özdikmen, 2008: 762 (Zhiltzovaia cachemirica comb. nov.); Chandra et al., 2019: 228 (Filchneria amabilis). Diagnosis. Head brown, with yellow M-shaped line, median interocellar area with a large tear-shaped yellow spot, widest anteriorly (Figs. 1, 3, 8, 14). The male of Z. amabilis is distinguished by the shape of the paraproct sclerite, which bears a small, narrow, truncated knob dorsally and larger rounded knob ventrally (Figs. 4, 5, 9, 11, 12), the eversible paraproct lobe (EPL) folded inside the paraproct (Figs. 4, 5, 9, 11) in repose. The everted EPL is a long finger-like membranous lobe with a sclerotized band dorsally (Fig. 12). The everted aedeagus is large, a membranous tube with a pair of lateral lobes at the base, two constrictions close to the tip, tip funnel-shaped (Figs. 10, 12). The female is distinguished by the shape of subgenital plate. It is short, wide, and slightly extended below sternum 8; a sclerotized pair of thin, obliquely-directed finger-like lobes posterolaterally; posterolateral edges rounded (Figs. 2, 6, 15). Lateral arms of meso-furcasternum short, not reaching anterior or posterior corners of furcal pits (Fig. 16). The egg of Z. amabilis triangular in cross section, each side swollen near the anterior pole (Fig. 17). Collar short, consists of two horizontal rims, both are flanged and irregularly incised (Fig. 18). Chorionic surface dotted with numerous, raised, large rounded globular bodies and tiny warts (Fig. 20). Adult habitus. Males are brachypterous (Fig. 7), females macropterous. Body brown, yellow and black, some areas glabrous (Fig. 7). Head brown, with a distinct yellow transverse M-shaped line interrupted at base, tentorial callosities on the clypeus yellow, a pair of yellow marks above the lateral ocelli with small black spots inside (Figs. 8, 14). Median interocellar area with a large tear-shaped yellow spot, widest anteriorly. Anterolateral margins of head with dark area extending from base compound eyes to the clypeus. Occipital area with a yellow transverse band connected medially and anteriorly forming a triangular medial area along the epicranial suture (Figs 7, 8, 14). Submental gills small. Antennae light brown, scape and pedicel dark brown, palpi yellowish. Pronotum brown with a broad median longitudinal light band (Figs. 7, 8 & 14), rugosites and meso- and metanota dark brown (Fig. 8). Lateral arms of meso-furcasternum short, not reaching anterior or posterior corners of furcal pits; dark beak-like spots at the inner edges of each furcal pit; transverse suture on mesosternum thin and light brown (Fig. 16). Abdomen covered with short brownish clothing hairs. Abdominal segments 1–3 divided by hairless pleural membrane laterally, remaining segments undivided. Legs with contrasting dark brown and yellow bands and spots, femur brown with a diffuse yellow band along outer edge and a yellow spot apically delimited with dark brown band. Tibia brown with diffuse darker brown band in the basal (Fig. 7) and a yellow spot basally. Cerci bicolored, segments with a thick transverse yellow bands basally, and thin dark brown lines on the apical margins (Figs. 7, 10, 15). Male. Body length 15.5–17.5 mm. Wings short. Fore wings reach the posterior margin of tergum 2, hind wings not exceed the posterior margin of tergum 4 (Fig. 7). Abdominal terga 7–8 dark, slightly depressed medially, swollen posterolaterally and densely covered with brown hairs. Tergum 9 deeply depressed medially with thin, light pigment area; paired transverse and rectangular yellow protrusions posteriorly, covered with thick sensilla basiconica and short fine hairs (Fig. 10). Sternum 9 brown, with oval pale patch medially, posterior margin scope-shaped, extending backward and curving upward, sub-equal to ⅓ length of sternum 10 (Figs. 7, 9, 10). Tergum 10 entire, pale, less sclerotized, with membranous narrow band along median line not reaching the posterior margin; in lateral view posteromedial margin up curved, obtusely angled and covered with two patches of reddish sensilla basiconica and sparse fine brown hairs (Figs 7, 9–11). Paraproct consists of sclerite and membranous eversible lobe (Figs. 9–12). Paraproct sclerite wide and heavily sclerotized basally, pointed distally, bears a small, narrow truncated knob dorsally and a large rounded knob ventrally (Figs. 9, 11, 12). In repose, eversible paraproct lobe is in-folded more than twice inside the paraproct and hidden (Fig. 11). The naturally everted EPL arises from a membranous fold near the narrow truncated knob of the sclerite, enlarges into a long finger-like membranous lobe, with a narrow sclerotized band along median surface, and the shape is curved upward (Fig. 12). Naturally everted aedeagus protrudes from the apex of sternite 10 as a membranous tube with a pair of lateral lobes at the base and two weak constrictions in the second half of the length (Figs. 7, 10, 12). The aedeagal apex is funnel-shaped with cuticular swellings (Figs. 7, 10, 12). Female. Body length 21.2–23.5 mm, macropterous, forewing length 20.6–21.4 mm, wingspan 44.0– 45.8 mm. Wings darkly infuscated, outer half of fore wing grey brown, inner half hyaline with yellow veins, costal area mostly light yellow, venation includes an irregular net near the apex sometimes consisting of three rows of cells (Fig. 13). Four cross veins between C and Sc; two veins between Sc and R 1 (Fig. 13). Rs bears five apical branches, six veins between М and Cu 2 ; four anal veins (Fig. 13). Hind wings similarly colored, anal area large, A 2 and A 6 forked. Head and pronotum pigment patterns similar to male, anterior margin of head with large yellow and rectangular occipital spot (Fig. 14); yellow M-line sometimes interrupted at the two highest points; and clypeus with a solid yellow stripe with the apices directed forward. Abdominal terga brown; sterna yellowish-brown except sterna 1–3 which are brownish with lateral membranous pale folds. Sternum 8 with a pair of large oval and oblique dark brown spots anteromedially (Fig. 15). Subgenital plate pale medially, short, partially extending beyond sternum 8, posteriorly with thin transverse wrinkles which are concentrated at the base, posteromedial margin almost truncate; a distinct pair of thin obliquely directed finger-like lobes project posterolaterally; lateral margins rounded, sharply incurved in the posterior 1/3 with dark brown spots near the anterior margin and above the fingerlike lobes (Fig. 15). Abdominal sternum 9 unmodified, brown with a lateral pair of large, oval, dark brown spots. Egg. Trilateral (Fig. 17), size is 727 X 485 μm, dark brown, heavily sclerotized. Longitudinal ridges delimit the three sides of the egg, each side swollen close to the anterior pole (Fig. 17). Anchor mushroom-shaped with short and strong pedicel (Figs. 17, 19), anchor plate entirely covered with dense globular bodies, the margin of the anchor covers the collar completely (Fig. 17). Collar short with two transverse rims, both are flanged and irregularly incised (Fig. 18). The sides of the collar between rims bear short longitudinal carinae (Fig. 18). A row of 3–6 micropyles is found near the swelling close to anterior pole on each side, orifices small with distinct short lips (Fig. 20). Chorionic surface dotted with numerous, raised, large globular bodies and tiny warts (Fig. 20). Larvae. Mature female length 26.7 mm. Color generally yellow-brown in dorsal view (Fig. 21). Body covered with short black clothing hairs, a dorsomesal band of erect silky white setae more pronounced on the head behind arms of ecdysial suture and thorax than on abdomen (Fig. 22). Antennae yellow. Head slightly wider than pronotum; M-line yellow, distinct; interocellar area brown with narrow oval central yellow spot, closed posteriorly (Figs. 21, 22), a small oval-shaped pale spot laterally from each posterior ocellus. Tentorial callosities on the clypeus above posterior ocelli pale. Occiput with brown reticulate markings posteriorly, a diffuse band of small light yellow spots close to epicranial arms and bordered sinuate brownish pattern behind each eye (Figs. 21, 22). A few small short and scattered spines in post-ocular row. Submental gills small, length 0.2 mm. Labrum yellow with light brown outer edge. Right lacinia (Fig. 23) bidentate, apically narrow, basal half expanded, with a small rectangular angle below subapical tooth bearing 3 stout marginal setae; marginal row of approximately 14 sparse stout setae along ¾ of inner margin; apical tooth about 0.4 times total outer lacinial length, subapical tooth about 0.5 times length of apical tooth; two long transparent axillary setae between bases of apical and subapical teeth; palm of lacina with a median ventral patch of more than 25 dark clothing setae. Galea reaches the base of the subapical tooth. Left mandible large (Fig. 24), strongly sclerotized and partially cleft, mandibular teeth without serrations, and a median patch of setae; a marginal band of golden acanthae extending from below the last small tooth to near the base (Fig. 24). Pronotum oval, brown with thin yellow lateral margins with a yellow pattern and dark clothing hairs (Figs. 21, 22); pronotal discs fringed with bristles of the mixed lengths, interrupted laterally and longer on anterior and posterior pronotal margins. Mesosternum Y–arms short not connected to the posterior corners of furcal pits. Meso- and metanota with yel- low median band widened posteriorly and with a few longitudinal narrow light yellow stripes, base of the wing pads brown (Fig. 21). Legs light brown, covered with black clothing hairs; femur with wide longitudinal yellow band close to outer margin and dark brown band distally; tibia with a short narrow and dark brown stripe basally (Fig. 28). Surface of femur and tibia with scarce brown bristles, inner margins of femora and tibia covered with short spine-like brown bristles. Outer margins of femur, tibia and tarsus with a fringe of fine, silky, colorless hairs (Figs. 21, 28). Abdominal terga brown with median dark brown stripe covered with a few short, stout, brownish bristles; segments 1–3 divided by hairless pleural membrane, remainder undivided, having a continuous posterior fringe of small brown setae. Terga 1–5 with a transverse row of six small, yellow spots grouped in three pairs anteriorly, this pattern is not obvious on terga 6–10 (Fig. 21). Paraprocts long, apex rounded. Cercus yellow-brown with dorsal fringe of fine silky and colorless setae, the setal length decreasing near apical segments (Figs. 21, 25–27). Cercal segments with an apical whorl of short brown setae, a few intercalary setae appeared on segments on apical half (Figs. 26, 27). Material examined. Perlodes amabilis Jewett, 1958. Paratype, female: Manali, 6500 ft, 25-VI-55, V. K. Gupta (SGJ, Jr.). North-West Himalaya, deposited in California Academy of Sciences, San Francisco, California, USA. Filchneria cachemirica Aubert, 1959. Holotype No 215. Male, Pakistan (NWFP), Besal, 10715 ft, 8–9.VII. 1953. F. Schmid leg. Skobeleva cachemirica det. J. Aubert, 1959. Perlodes cachemirica Aubert, 1959, Det. Aubert, 1959. Paratype No 117. Female, Pakistan (NWFP), Besal, 10715 ft, 24.VII. 1953. F. Schmid leg., Perlodes cachemirica Aubert, 1959, Det. Aubert, 1959. Skobeleva cachemirica det. J. Aubert, 1959. The holotype and paratype deposited in Cantonal Museum of Zoology, Lausanne, Switzerland. India: Unttarakhaand, Chamoli District: 2 nymphs, Nayachutii Vill., Ganges R. Basin, Alaknanda R., 1924 m a. s. l., 30°38.637’ N 79°32.019’ E, 10.05.2018. coll. D. Palatov; 4 ♂, 1 ♀, 2 nymphs, Ganges R. Basin, Badrinath, Rishi Ganga River, tributary of the Alaknanda R., 3128 m a. s. l., 30°44.444’ N 79°29.325’ E, 12.05. 2018, coll. D. Palatov; 3 ♂, 1 ♀, 1 nymph, 2 ex., below Badrinath, Ganges R. Basin, Alaknanda River, 3093 m a. s. l., 30°44.1726’ N 79°29.333’ E, 13.05.2018, coll. D. Palatov; Utar Pradesh: 1 ♀, 5 nymphs, Gobindghat, 1750–1900 m a. s. l., 30°37.5’ N 79°33.5’ E, 17– 23.05.1999, coll. Yu. Marusik; Himachal Pradesh: 1 nymph, Darcha Vill., Bhaga River, Ind R. Basin, 2300–3400 m a. s. l., 32°40.6’ N 77°11.9’ E, 15.06.1999, coll. Yu. Marusik; 1 ♂, Rohtang Pass & Marhi Vill., 3800–3950 m a. s. l., 32°21.9’ N 77°14.7’ E, 03.06.1999. coll. Yu. Marusik. Tajikistan: 1♂, Gorno-Badakhshan A. R., Ishkoshim District, Panj R. Basin, Pamir R. Basin, an unnamed stream along the road Langar-Rachiv, steeply falls to the Pamir R., 3515 m a. s. l., 37°10.315’ N 72°44.371’ E, 30.06.2016, coll. D. Palatov. Distribution. Zhiltzovaia amabilis is considered an endemic to Asia with limited distribution in the high mountain belt of the transfer zone between the East Palaearctic and the Oriental regions (Zhiltzova 1994, Li & Murányi 2015). It occurs in the Hindu Kush, Pamir, Karakoram and northwestern Himalaya Ranges (Tajikistan, Afghanistan, Pakistan, and northwest of India). Inhabits the streams and rivers of the alpine zone at 1750–3950 m a. s. l., width 1.5–20 m, bottom with rocky substrate, boulders, small stones, and pebbles; velocity 0.1–1.2 m /s, water temperatures 8–15°C; (high mountain sources in the Amu Darya, Indus, and Ganges R. Basins). Adults present in May–July. Comments. The holotype and paratype of A. cachemirica (Figs. 3–6) and the paratype of P. amabilis (Figs. 1, 2) agree well with the original descriptions by Aubert (1959) and Jewett (1958), respectively. The types are in good condition, although both descriptions are relatively brief and characteristic features of the internal structures were not originally described. Visible through the cleared integument of the holotype of A. cachemirica, is the folded EPL with a narrow sclerotized band (Fig. 5). There is a slight difference in the shape of the female subgenital plate of fresh material and original description of paratypes of A. cachemirica and P. amabilis, where the posteromedial margin bears a small lobe according to Jewett (1958) and Aubert (1959). Possibly, the appearance of a small medial lobe on the posteromedial edge of subgenital plate is associated with the laying of large eggs and the female maturity. Apparently, age and maturity of adults may also explain the differences in the color pattern of head and pronotum of the holotype of A. cachemirica (Fig. 3), which does not have a distinct pronotal yellow medial band; probably old specimens can be relatively dark, and unicolorous (Fig. 82 Aubert, 1959). Considering P. amabilis paratype characters such as the remarkable shape of the female subgenital plate, the color pattern of the head, pronotum, legs (Figs. 1, 2), and the relative proximity of the type locality to Kashmir, P. amabilis is transferred to Zhiltzovaia with the valid name Z. amabilis. Zhiltzovaia cachemirica, based on overlapping and agreement of characters of the respective original descriptions, is placed as a junior synonym of Z. amabilis.Published as part of Teslenko, Valentina A. & Palatov, Dmitry M., 2020, Redescription of the remarkable Zhiltzovaia amabilis (Jewett, 1958) comb. nov. (Plecoptera, Perlodidae) based on types and new material from Himalaya and Pamir Mountain systems, pp. 295-306 in Zootaxa 4767 (2) on pages 296-305, DOI: 10.11646/zootaxa.4767.2.5, http://zenodo.org/record/377134
A new micropterous winter species of Leuctra (Plecoptera: Leuctridae) and little known endemic stoneflies from the Greater Caucasus
No full textTeslenko, Valentina A., Palatov, Dmitry M. (2019): A new micropterous winter species of Leuctra (Plecoptera: Leuctridae) and little known endemic stoneflies from the Greater Caucasus. Zootaxa 4613 (2): 342-354, DOI: 10.11646/zootaxa.4613.2.
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