105,609 research outputs found
Coeliccia kenyah Dow 2010
No full textCoeliccia kenyah Dow, 2010 New material. All in coll. Dow, all from Sarawak, all leg. RAD: 3, 2 ƤƤ, Miri division, mid Baram area, lower slopes of Gunung Kalulong, steep stream in disturbed forest, 250–300m, 14 –VII– 2010; 2 3, same area, tiny stream in disturbed forest, 250–350m, 21 –VII– 2010; 3, same area, Batu Uro’, small high gradient stream by old logging path through disturbed forest, ca 350m, 16 –VII– 2010; 3, Bintulu division, Sarawak Planted Forest Project, Tubau area, high gradient trickle in disturbed forest, 31 –VIII– 2009.Published as part of Dow, Rory A. & Reels, Graham T., 2011, Coeliccia southwelli sp. nov. (Odonata: Zygoptera: Platycnemididae) from Mount Dulit, Sarawak, pp. 63-68 in Zootaxa 2832 on page 65, DOI: 10.5281/zenodo.27732
Coeliccia kenyah Dow 2010
No full text<i>Coeliccia kenyah</i> Dow, 2010 <p> <b>New material.</b> All in coll. Dow, all from Sarawak, all leg. RAD: 3, 2 ƤƤ, Miri division, mid Baram area, lower slopes of Gunung Kalulong, steep stream in disturbed forest, 250–300m, 14–VII–2010; 2 3, same area, tiny stream in disturbed forest, 250–350m, 21–VII–2010; 3, same area, Batu Uro’, small high gradient stream by old logging path through disturbed forest, ca 350m, 16–VII–2010; 3, Bintulu division, Sarawak Planted Forest Project, Tubau area, high gradient trickle in disturbed forest, 31–VIII–2009.</p>Published as part of <i>Dow, Rory A. & Reels, Graham T., 2011, Coeliccia southwelli sp. nov. (Odonata: Zygoptera: Platycnemididae) from Mount Dulit, Sarawak, pp. 63-68 in Zootaxa 2832</i> on page 65, DOI: <a href="http://zenodo.org/record/277323">10.5281/zenodo.277323</a>
Telosticta iban Dow, 2014, sp. nov.
No full textTelosticta iban sp. nov. (Figs. 1–12) Type material: Holotype: ♂ (SAR 13 _ 14 _PST 87), Malaysia, Sarawak, Kapit Division, Lanjak Entimau Wildlife Sanctuary, Nanga Bloh Field Station, seepage at head of high gradient tributary to Sungai Kelimau, N 1.640 º, E 112.262 º, 24 viii 2013, leg. R. A. Dow, to be deposited in SMSM. Paratypes: ♀ (SAR 13 _ 14 _PST 88), data as holotype, 23 vi 2013, in coll. R. A. Dow; ♂ (SAR 13 _ 14 _PST 95), same area, tributary to Sungai Bloh, N 1.630 º, E 112.282 º, 24 vi 2013, leg. R. A. Dow, in coll. R. A. Dow. Etymology. iban, a noun in apposition. Named for the Iban people, the majority Dayak race in Sarawak, and the inhabitants of the area around the Lanjak Entimau Wildlife Sanctuary where this new species was discovered. Description of holotype male. Head: Labium pale. Basal 2 / 3 of labrum pale blue, black along free margin. Anteclypeus blue, postclypeus shining black. Mandible bases blue in corner by clypeus, black below. Vertex and frons bronzy black, occiput shining black. Ratio of width of compound eye to width of vertex measured at level of lateral ocelli slightly less than 9 / 10. Transverse occipital carina with lateral extremities angulated and prominent. Ocelli yellowish. Antenna with scape and pedicel pale yellowish, dark at top of pedicel, remainder black. Thorax: Prothorax yellow except to rear of propleuron where there are irregular dark markings; a few brown patches at rear of middle pronotal lobe and whole posterior pronotal lobe, where black centrally, brown laterally and becoming greyish brown on lateral process, which is moderately long (Fig. 2) with the tip not reaching the level of the lower margin of the propleuron. Synthorax: Mesepisternum bronzy black, with a pair of blue antehumeral stripes, each divided into a longer part near the prothorax and a short part near the wing bases (Fig. 5). Antealar triangles yellow along mid-dorsal carina and in half at wing bases, rest black. Mesepimeron dark brown, paler adjacent to wing bases. Metepisternum largely occupied by pale band, with short brown triangle based at antealar carina below, this extended as brownish band along metapleural suture to level of spiracle (Fig. 6). Metepimeron almost entirely pale. Venter of synthorax pale. Legs: each with coxa and trochanter yellow, femur yellow with faint and incomplete dark stripe on extensor surface, dark above tibia. Tibia dark immediately below femur, then pale, dark just above tarsus, which is pale with some darker areas and brown claws. Wings: 12 Px in Fw, 11 (left) to 12 (right) Px in Hw. Vein ab present. Arculus slightly distal to Ax 2. R 4 arising distal (Fw) or at (Hw) to subnodus, IR 3 joined to it by a short stalk. Pterostigma trapezoidal with costal side slightly shorter than anal side, very dark brown with narrow pale border, covering slightly more than one underlying cell. Abdomen: Largely brown. S 1 mostly yellowish cream with narrow apical darker annulus. S 2 with yellowish cream basal annulus, just divided dorsally, laterally this extending to posterior carina as a pale wedge, otherwise brown. S 3–7 brown with a narrow pale basal annulus, narrowly interrupted dorsally on S 3 but complete on S 4–7; on S 7 faded so hardly visible. S 8 dark brown with pale band along lower margin, extended basally as an incomplete annulus. S 9–10 very dark brown with pale blue dorsal marking occupying much of dorsum of S 9 (Fig. 8). Anal appendages (Figs. 10–12) largely black and dark brown, with pale areas on inner apical halves of cerci and scoop of paraprocts. Cerci slightly less than 2.5 times length of S 10, interior projection poorly developed as small knob directed rearwards at just over two fifths length, only visible in dorsal view (Fig. 10), dorsal projection absent. Expanded abruptly dorsal-ventrally and interiorly in distal ca. two thirds, lower margin irregular, small cleft at tip (Fig. 11). Paraprocts slightly longer than cerci, scoop almost square (Fig. 12), spine of moderate length and directed inwards, to rear and upwards. Genital ligula of typical form for genus, with tongue-like structure of terminal segment short (Fig. 7). Measurements (mm): abdomen without anal appendages 34, cercus just over 1, Hw 20.5. Description of paratype female (SAR 13 _ 14 _PST 88). As male except as noted. Head: Labrum with basal half blue. Thorax: Posterior pronotal lobe lacking lateral processes, but with hind margin produced as pair of rearward directed horns (Figs. 3–4). Legs with well-defined black stripe on extensor surface of each femur. Wings: R 4 arising distal to subnodus in all wings, 11 Px in all wings. Abdomen: S 10 short. A blue mark covering much of the dorsum of S 9 (Fig. 9). Cerci shorter than S 10, approximately triangular. Ovipositor extending beyond cerci, pale with obscure dark markings. Measurements (mm): abdomen without appendages or ovipositor 32, Hw 21. Variation in male paratype. The male paratype is immature and the terminal abdominal segments are somewhat distorted. The blue dorsal mark on S 9 is smaller than in the holotype. R 4 arises distal to subnodus in all wings. Measurements (mm): abdomen without anal appendages 34, Hw 20. Diagnosis. A small Telosticta with antehumeral stripes divided into two well separated parts and with blue dorsal markings on abdominal S 9 only. Both sexes are easily distinguished from all other species of Telosticta by the form of the antehumeral markings. The male is further distinguished by the absence of a dorsal projection on the cerci and the almost square scoops of the paraprocts. Remarks. The holotype male and paratype female were caught separately at the same seepage, both found sitting back from the seepage. The paratype male was taken while sitting back from a small high gradient stream, in contrast to its congener T. longigaster Dow & Orr, 2012, males of which were perched on vegetation overhanging the stream. Evidently T. iban exhibits more secretive behaviour than some other members of the genus and would be easy to overlook, especially as its markings, although distinctive, were not bright even in life. However, it does not appear to be as elusive as T. belalongensis Dow & Orr, 2012, or T. tubau (Dow, 2010), for each of which the only definite example known is the holotype. The locations at which the type series were collected are best described as small moderately high gradient streams and seepages in lightly disturbed to undisturbed lowland mixed dipterocarp forest. Of the provisional species groups defined in Dow & Orr (2012), T. iban fits best into the feronia -group; using the key in Dow & Orr (2012), T. iban would key out as T. dayak Dow & Orr, 2012, or break the key, depending on how liberally couplet 7 was interpreted. The key could most easily be modified to accommodate T. iban by introducing a new first couplet distinguishing between species with interrupted antehumeral stripes (e.g. T. iban) and those with uninterrupted antehumeral stripes (e.g. all of the rest). Another unique feature of T. iban is the lack of a dorsal projection on the cerci; however, this character is so poorly developed in some species that it is easily overlooked, so it may not be a good character for use in identification. Although the posterior pronotal lobe (Figs 3–4) of the female is distinctive, given the variation known to exist in the same structure in T. longigaster (Dow & Orr 2012: 393 and Fig. 15), it may not prove to be reliable for identification. However, the distinctive antehumeral markings will serve to separate both sexes from the other known members of the genus.Published as part of Dow, Rory A., 2014, Telosticta iban sp. nov. from Sarawak (Odonata: Zygoptera: Platystictidae) in Zootaxa 3784 (1), DOI: 10.11646/zootaxa.3784.1.4, http://zenodo.org/record/22930
Telosticta fugispinosa Dow, Afendy & Rahman, 2016, sp. nov.
No full textTelosticta fugispinosa sp. nov. (Figs. 1–12) Telosticta undetermined D;— Dow & Orr (2012: 396, record of female, Poring Hot Springs, Sabah). Type material: Holotype: 1 ♂ (SAB 12 _PST 1, RMNH.INS. 507772), Malaysia, Sabah, West Coast Division, Crocker Range National Park, Inobong, Kimamabang waterfall stream system (below waterfall), 21 ix 2012, leg. R. A. Dow, in RMNH. Paratypes: All from Malaysia, Sabah, West Coast Division: 3 ♂ (SAB 12 _PST 49; SAB 12 _PST 72, RMNH.INS. 507677; SAB 12 _PST 77, RMNH.INS. 507668), Kinabalu National Park, Poring Hot Springs, small streams crossed by or near to trail to Langanan waterfall, above Kipungit stream, 11 ix 2012, leg. R.A. Dow; 1 ♂ (SAB 12 _PST 48), same location and collector, 12 ix 2012; 1 ♀, same area, trailside in forest, 21 iv 2005, leg. unknown, in RMNH; 10 ♂ (SAB 12 _PST 3, RMNH.INS. 507747; SAB 12 _PST 32–37; SAB 12 _PST 62, RMNH.INS. 597748; SAB 12 _PST 66, RMNH.INS. 507755), 1 ♀ (SAB 12 _PST 4; RMNH.INS. 507749), location as holotype, 18 ix 2012, leg. R.A. Dow; 4 ♂ (SAB 12 _PST 29 –31, 87), same location and collector, 19 ix 2012; 6 ♂ (SAB 126 _PST 6 –9, 26; SAB 12 _PST 61, RMNH.INS. 507770), 1 ♀ (SAB 12 _PST 27, in tandem with SAB 12 _PST 26), data as holotype; 3 ♂ (AA044, 49, 57; ODO 01378 - 80), same location, 22 ix 2012, leg. A. Afendy, in ITCB; 1 ♂ (SAB 12 _PST 84, RMNH.INS. 507766), same national park, Inobong, Batu Dinding stream system, 20 ix 2012, leg. R.A. Dow. Etymology. fugispinosa, an adjective suggesting a fleeting spine, in reference to the absent or vestigial spine on the paraprocts. Description of holotype male. Head: Labium pale. Basal 2 / 3 of labrum pale blue, black along free margin. Anteclypeus blue, postclypeus shining black. Mandible bases blue in corner by clypeus, black below. Vertex and frons bronzy black, occiput shining black. Ratio of width of compound eye to width of vertex measured at level of lateral ocelli slightly more than 9 / 10. Transverse occipital carina with lateral extremities angulated and prominent. Ocelli whitish. Antenna with scape and pedicel pale yellowish, brown at top of pedicel, remainder missing. Thorax: Prothorax whitish with blue tint to central parts anterior and middle pronotal lobes, except to rear of propleuron where there are irregular dark markings; small black central marking on anterior pronotal lobe, irregular black markings to rear of middle pronotal lobe; entire posterior lobe black, becoming grey apically on long lateral process (Fig. 3) with tip reaching level of lower margin of propleuron. Synthorax: Mesepisternum bronzy black, with pair of blue antehumeral stripes extending ca two-thirds of distance to wing bases (Fig. 5). Antealar triangles pale blue along mid-dorsal carina and in half at wing bases, rest black. Mesepimeron black. Metepisternum largely occupied by pale band, becoming blue towards wing bases, with short brown triangle based at antealar carina below, this extended as brownish band along metapleural suture to level of spiracle (Fig. 6). Metepimeron almost entirely pale. Venter of synthorax pale. Legs (only right anterior and right middle legs still present beyond trochanter, left posterior leg entirely missing, however all legs agreeing with the description below in paratypes): each with coxa and trochanter pale, femur and tibia pale except around joint and black stripe along extensor surface of femur. Tarsus pale with some darker areas, very dark brown at apex and brown claws. Wings: 13 (left) to 14 (right) Px in Fw, 12 (left) to 13 (right) Px in Hw. Vein ab absent. Arculus slightly distal to Ax 2. R 4 arising distal to subnodus, IR 3 joined to it by short stalk. Pterostigma trapezoidal with costal side slightly shorter than anal side, very dark brown with narrow white border, covering slightly more than one underlying cell. Abdomen: Largely dark brown and black. S 1 pale with narrow darker apical annulus. S 2 with yellowish cream basal annulus, divided dorsally, laterally this extending to posterior carina as pale wedge, otherwise dark brown. S 3–7 dark brown with narrow pale basal annulus, faint centrally dorsally. S 8 black with pale band along lower margin joined to large blue lateral dorsal marking, narrowly and irregularly divided dorsally (Fig. 7). S 9–10 black. Anal appendages (Figs. 10–12) largely black, with pale areas interior apically on cerci and scoop of paraprocts pale, also ventrally at interior base of paraprocts. Cerci ca 2.5 times length of S 10, interior projection well developed as spur at ca one-third length from base, directed first inwards then expanded slightly upwards and strongly downwards directed, spur clearly visible in dorsal (Fig. 10) and lateral (Fig. 11) view, with peg-like appearance in lateral view. Dorsal projection weakly developed, visible in dorsal view as small bump (Fig. 10). Cerci expanded dorsoventrally and interiorly shortly after half length, lower margin irregular, small subapical cleft (Fig. 11). Paraprocts just shorter than cerci, scoop spoon-like, turned inwards (Figs. 12), spine vestigial, not easily visible. Genital ligula of typical form for genus, with tongue-like structure of terminal segment long. Measurements (mm): abdomen without anal appendages 38.5, cercus just over 1, Hw 20.5. Description of paratype female (SAB 12 _PST 27). As male except as noted. Thorax: Posterior pronotal lobe with only short lateral processes (Fig. 4). Wings: 14 Px in Fw, 13 Px in Hw. Abdomen: S 3–5 with pale basal annulus not faded dorsally. S 6 with no basal annulus but small white basal dorsal mark present. S 7 with complete broad white basal annulus. Blue mark covering much of dorsum of 8 (Fig. 9). S 10 short. Cerci just shorter than S 10, approximately triangular. Ovipositor extending just beyond cerci, mostly black and dark brown with obscure pale markings. Measurements (mm): abdomen without appendages or ovipositor 33, Hw 21. Variation in paratypes. The black marks on the anterior pronotal lobe and the rear part of the middle pronotal lobes are variable in size, almost entirely absent in a few individuals and more extensive in others; occasionally the anterior lobe marking is joined to those on the rear of the posterior pronotal lobe via the central pit. The shape of the blue dorsal marking on S 8 of the male paratypes is variable, and the marking is frequently not divided centrally (e.g., Fig. 8); this is the case in all individuals from Poring. The spine of the paraprocts is entirely absent in some males. In males the only other significant variation is in size, with all individuals from Poring at the upper end of size range given below. In the two other female paratypes there is a basal pale annulus on S 6. Measurements (mm): Males: abdomen without anal appendages 36–46, Hw 19–24.5, 12–14 Px in Fw, 11–13 Px in Hw. Females: abdomen without anal appendages or ovipositor 34–37, Hw 21.5 –24, 13– 14 Px in Fw, 12–13 Px in Hw. Diagnosis. A small Telosticta with long blue antehumeral stripes. Males are easily distinguished from all other species of Telosticta by the form of the paraprocts, with the scoop turned sharply inwards and with a vestigial or no spine; the shape of the terminal half of the cerci is also distinctive, and dorsal blue markings on the terminal abdominal segments are confined to S 8. Remarks. Individuals of both sexes were found at moderate- to high-gradient forest streams from approximately 500–800m above sea level. In Fig. 6 there appears to be a small pale mark on the mesopleural suture near antealar carina of the holotype, this is actually an artefact in the image and does not really exist. The female reported as ‘ Telosticta undetermined D’ from Poring Hot Springs in Dow & Orr (2012: 396) and listed as a paratype here, along with the other female not collected in tandem with a male, are considered to belong to T. fugispinosa, as males were found in the same area and no other species of Telosticta has been found at Poring. However, in general the female may prove difficult to separate from those of other species of Telosticta with similar-length antehumeral markings; the female of the only other species known to occur in Sabah, T. janeus Dow & Orr, 2012, is not yet known. The known distributions of T. fugispinosa and T. janeus are allopatric, with the former known from Mount Kinabalu and the Crocker range and the latter from the south and east of Sabah, with published records from the Danum Valley and Imbak Canyon (Dow & Orr 2012: 394). The identity of ‘ Telosticta undetermined C’, reported from the Silau Silau stream near to the Kinabalu National Park headquarters (Dow & Orr 2012: 396; a large-sized teneral male) remains open, but it is likely to represent a third species of Telosticta from Sabah. Of the provisional species groups defined in Dow & Orr (2012), T. fugispinosa fits best into the feronia -group. Using the key in Dow & Orr (2012), exactly as in the case of T. iban Dow, 2014 (Dow 2014: 78), T. fugispinosa would key out as T. dayak Dow & Orr, 2012, or break the key, depending on how liberally couplet 7 was interpreted. The key could most easily be modified to accommodate T. fugispinosa by introducing a new couplet 6 distinguishing between species with the scoop of the paraproct sharply inturned, with vestigial spine (e.g., T. fugispinosa) from all others. No other species included in Telosticta has the spine on the paraprocts vestigial or absent.Published as part of Dow, Rory A., Afendy, Aqilah & Rahman, Homathevi, 2016, Telosticta fugispinosa sp. nov. from Sabah (Odonata: Zygoptera: Platystictidae), pp. 390-395 in Zootaxa 4103 (4) on pages 390-394, DOI: 10.11646/zootaxa.4103.4.7, http://zenodo.org/record/25577
Drepanosticta emtrai Dow, Kompier & Phan 2018
No full textDrepanosticta emtrai Dow, Kompier & Phan, 2018 (Figure 5a–d) Drepanosticta emtrai: Dow et al. (2018): Original description, Figs 1 –16, 21, holotype from Huong Son of Ha Tinh Province, Vietnam, paratypes from Nghe An and Hanoi Provinces, Vietnam and Bolikhamsai, Laos. Drepanosticta sp.1: Yokoi & Souphanthong (2014): Plate 2, p. 25 (habitus photo male); Fig. 9, p. 53 (appendages in lateral view). Specimens examined. 2 ♂♂, Khe Kem (18.9729 N, 104.8168 E, altitude 273 m), Pu Mat National Park, Nghe An Province, Vietnam, 14.v.2019, Q. T. Phan leg. (ZCDTU); 1 ♀, Khe O (18.9118 N, 104.9242 E, altitude 66 m), Pu Mat National Park, Nghe An Province, Vietnam 12.v.2019, Q. T. Phan leg. (ZCDTU); 2♂, Son Kim 2 Commune (18.4387 N, 105.2146 E, altitude 127 m), Huong Son District, Ha Tinh Province, Vietnam, 09.v.2015, Q. T. Phan leg. (ZCDTU); 3 ♀♀, same location, 05.vii.2018, Q. T. Phan leg. (ZCDTU); 4 ♂♂, Ta Thom Village (19.0329 N, 103.5950 E, altitude 355 m), Muangngan District, Xieng Khuoang Province, Laos, 27.v.2017, Naoto Yokoi leg. (ZCDTU). Notes. The Laotian D. emtrai differs from the type series (from Dow et al. 2018) by the pale yellow lateral stripe on the male synthorax (Fig. 5a) and the apices of the arms of the genital ligula more expanded (Fig. 5c) compared to a bluish lateral stripe and less expanded in the D. emtrai description. Although not noted in Dow et al. (2018) at least one of the paratypes of D. emtrai has more expanded apices of the arms of the genital ligula. It is noted in Dow et al. (2018) that some of the paratypes have the metepisternum completely dark. Although there is clearly considerable variation in the presence, color and extent of the marking on the metepisternum in this species, as well as the extent of pale color on S8, the abdominal pattern and structure of appendages of specimens from Laos (Fig. 5b) agree well with D. emtrai. Distribution. Vietnam (Hanoi City, Nghe An & Ha Tinh Provinces); Laos (Bolikhamsai & Xieng Khuoang Provinces) (Fig. 13).Published as part of Phan, Quoc Toan, Yokoi, Naoto, Makbun, Noppadon, Joshi, Shantanu, Subramanian, K. A., Ngo, Quoc Phu & Dow, Rory A., 2021, A review of the Drepanosticta carmichaeli-group, with the description of D. wildermuthi sp. nov. from the Central Highlands of Vietnam (Odonata: Zygoptera: Platystictidae), pp. 187-210 in Zootaxa 5067 (2) on pages 198-199, DOI: 10.11646/zootaxa.5067.2.2, http://zenodo.org/record/567782
Mrs. Dow
No full textCarte de visite from album related to J. P. Osterhout, (1826-1903) and family.Verso: [imprinted] Gobb & Hempstead, Artists, Susquehanna Depot, Penn. [handwritten] Mrs. Dow
Scatter plot of y<sub>t</sub>exp(-NS(t,df<sub>t</sub>)-DOW<sub>t</sub>) vs. Time by GAM model.
No full text<p>From expression (5), we shall assume that the term µ<sub>t</sub>exp(-NS(t,df<sub>t</sub>)-DOW<sub>t</sub>) will have stable seasonality which does not change in different years. To achieve this property we need to check the seasonality of the term y<sub>t</sub>exp(-NS(t,df<sub>t</sub>)-DOW<sub>t</sub>) by the scatter plot under the certain selection of the degree of freedom for the natural spline functions. The figure shows good seasonality with df<sub>t</sub> = 6 in part A and week seasonality with df<sub>t</sub> = 20 in part B.</p
Sangabasis feliculoi Villanueva & Dow, 2014, sp. nov.
No full text<i>Sangabasis feliculoi</i> sp. nov. <p>(Figs. 13, 25, 35, 48, 60, 65)</p> <p> <i>Amphicnemis</i> sp. (cf. <i>dentifer</i>);— Hämäläinen & Müller (1997: 259, 278: Note 31; part, population from Samar).</p> <p> <b>Type material</b> (all in RMNH, all Philippines, Samar Island, Western Samar Province). <b>Holotype:</b> ♂, Hinabangan, Bagakay, Arizona, 180–200m, 29 viii–20 ix 1996, leg. A. Buenafe. <b>Paratypes</b>: 20 ♂ Hinabangan, Bagakay, Arizona, 100–200m, 29 viii–20 ix 1996, Leg. A. Buenafe.</p> <p> <b>Other material</b> (all Philippines, Samar Island, all in RMNH unless otherwise stated). Western Samar Province: ♂, Hinabangan, 50 – 150m, 1–14 iv 1992, leg. T. Borromeo jr; ♂, Hinabangan, 7 iv 1992, leg. T. Borromeo Sr”; 38 ♂, 8 ♀, Hinabangan, Bagakay, Arizona, 100–200m, 29 viii–20 ix 1996, leg. A. Buenafe; 162 ♂, 27 ♀, Hinabangan, Arizona, 100–280m, 29 iii–6 iv 1997, leg. R.A. Müller; 21 ♂, 6 ♀, Hinabangan, Arizona area, 100–280m, 5–12 v 1997, leg. A. Buenafe; 2 ♂, 2 ♀, Hinabangan, San Isidro, San Isidro River 90–200m, 31 iii–5 iv 1997, leg. R.A. Müller; 2 ♂, Basey, Mt. Sohoton, 150–200m, 10–19 vii 1994, leg. T. Borromeo. Eastern Samar Province: ♂, San Rafael, 50–180m, 21–24 iv 1992, leg. T.</p> <p>Borromeo jr; 3 ♂, ♀, San Rafael, 20–28 v 1993, leg. T. Borromeo; ♂, Taft, San Rafael, ix 2009, in coll. RJTV; ♀, Oras, 50–150m, 16–18 iv 1992, leg. T. Borromeo jr; 2 ♂, Oras, 16–17 iii 1994, leg. T. Borromeo; ♂, ♀, Oras, 21 iii 1994, leg. T. Borromeo; ♂, 2 ♀, Oras, 11–22 iv 1994, leg. T. Borromeo. Northern Samar: ♂, Las Navas, Brgy. San Isidro, 100–350m, 22–28 v 1997, leg. A. Buenafe”.</p> <p> <b>Etymology.</b> A noun in the genitive case, named after the grandfather, Feliculo G. Torayno, of the first author.</p> <p> <b>Description of holotype male.</b> Head: Labium pale, mandible bases pale with large dark mark. Labrum shiny black except for yellow distal third. Genae pale, pale colour continued to eye margin and narrowly along eye margin from ridge of frons to level of antennal sockets. Anteclypeus pale blue with dark central marking adjacent to postclypeus. Postclypeus black. Frons black, with distinct ridge, anterior face with paired transverse yellow streaks separated centrally. Vertex black with metallic reflection. Broad vertical pale streak on antennal socket, top of scape pale, pale vertical streak on pedicel, rest of antennae brown. Remainder of head dark metallic green. Distinct tubercle situated anteriorly beside eye margin in postocular area.</p> <p>Thorax: Prothorax dark metallic green except for pale transverse streak on crest of anterior lobe and pale lower part of propleuron. Shelf of posterior pronotal lobe (as in Fig. 13, which shows a paratype) short, with corners raised. Horns of posterior pronotal lobe long, rearward directed, abruptly bent outward at right angle apically, tapering to tip (Fig. 13). Synthorax (Fig. 35) with long process at ca 1/4 of length of dorsa carina, directed upward and slightly forward. Mesinfraepisternum metallic green with partial, irregular pale borders. Mesepisternum metallic green. Mesepimeron mostly metallic green with broad pale streak along interpleural suture, not reaching antealar carina (Fig. 35). Metepisternum pale, large metallic green marking adjacent to antealar carina, separated from small dark mark spanning metapleural suture, metepimeron otherwise pale. Legs with coxa and trochanter pale, femur and tibia pale with dark spines, blackish streaks on extensor surfaces and dark markings around joint. Tarsi without denticle. Wings hyaline with black veins. Arc just off Ax2, Ac near to Ax2, petiolation ceases before Arc. R4 arising at or a little distal to subnodus; IR3 slightly more distal. 14 Px in Fw, 13 Px in Hw. Pt brown, almost rectangular, costal side a little shorter than subcostal side.</p> <p>Abdomen: S1–2 metallic black dorsally, becoming pale lower on sides; S3–7 dorsally black, paler laterally with narrow pale basal ring. S8–10 black, paler lower laterally. Cerci pale, more than twice length of S10. Fork of upper branch at ca 1/3 length of upper branch (Fig. 48). In lateral view upper branch shaped as in Fig. 60, with small black internal tooth at tip, in dorsal view slightly hollowed interiorly toward tips. Spur ca 1/2 length of distance from S10 to fork in dorsal view, longer than wide and well visible in lateral view, tuft of dense setae at tip. Lower branch short, white, barely visible in lateral view with tip ca halfway from S10 to base of spur. Paraprocts typical for genus.</p> <p> <b>Measurements</b> (mm): abdomen including cerci 39, Hw 23.</p> <p> <b>Female.</b> Similar to male except for lateral portion of posterior pronotal lobe curved upward instead of out (Fig. 25). S8–9 lateral pale marking more extensive with bluish tint, S9 with black restricted to dorsum.</p> <p> <b>Measurements</b> (mm): abdomen 38, Hw 24.</p> <p> <b>Diagnosis.</b> The very long, flat tubercle of the dorsal carina of the synthorax and the right angle outward turn of the apical part of the horns of the posterior pronotal lobe serve to separate this species from all others. <i>S. dentifer</i> from Dinagat and Siargao Islands also possess a long tubercle on the dorsum of the synthorax but lack the lower branch of the cercus and differ in the posterior lobe of the prothorax.</p>Published as part of <i>Villanueva, R. J. T. & Dow, R. A., 2014, Review of the Philippine taxa formerly assigned to the genus Amphicnemis Selys, II. Genus Sangabasis with descriptions of eight new species (Odonata: Coenagrionidae), pp. 1-28 in Zootaxa 3815 (1)</i> on pages 15-19, DOI: 10.11646/zootaxa.3815.1.1, <a href="http://zenodo.org/record/286240">http://zenodo.org/record/286240</a>
Drepanosticta adenani Dow & Reels 2018, sp. nov.
No full textDrepanosticta adenani sp. nov. (Figs. 1 – 15) Holotype. 1 ♂ (SAR16 _ PST11), seepage at head of second order tributary to Sungai Jela, Lanjak Entimau Wildlife Sanctuary, Ulu Engkari, Sri Aman Division, Sarawak, Malaysian Borneo, 1.4343N, 111.9987E, ca 440m a.s.l., 18 vii 2016, leg. R.A. Dow, deposited in the Natural History Museum, London (BMNH). Paratypes. 1 ♀ (SAR16 _ PST12), location and date as holotype, leg. G.T. Reels, to be deposited in the Natural History Museum, London; 2 ♂♂ (SAR17 _PST35, 36), 1 ♀ (SAR17 _PST37), 1 teneral ♀ (SAR17 _PST38), seepage at head of second order tributary to Sungai Datai, Nanga Bloh, same wildlife sanctuary but Kapit Division, 1.6532N, 112.2729E, ca 185m a.s.l., 31 x 2017, leg. R.A. Dow, 1 ♂ to be deposited in the Sarawak Museum, Kuching. Etymology. The species epithet adenani, a noun in the genitive case, is a dedication to the late Tan Sri Adenan bin Satem (27 January 1944 – 11 January 2017), Chief Minister of Sarawak from 2014–2017, in recognition of his support for biodiversity research and conservation in Sarawak, and for starting the Research for Intensified Management of Bio-rich Areas (RIMBA) project, which includes LEWS. Description of holotype. Head (Fig. 1). Labium pale brownish except darker end hooks. Labrum pale yellow, narrowly black along free margin. Mandible bases pale yellow, black along lower margin. Anteclypeus pale yellow, postclypeus shining black. Vertex, frons and occiput bronzy black, underside of head shining black. Ratio of width of compound eye to width of vertex measured at level of lateral ocelli ca 0.7. Transverse occipital carina prominent. Ocelli whitish. Antenna with scape black, whitish at top, pedicel black and pale brown, right flagella black, left missing. Thorax. Prothorax almost entirely chestnut brown. Posterior pronotal lobe (Figs 3, 6) short, with free corners almost right-angled, slightly folded up, pair of short, flattened horns inwards of these, but still widely separated, nearly triangular when viewed from rear, slightly curved forwards. Area behind and in between horns bronzy black. Synthorax (Fig. 6): Mesepisternum and antealar triangles entirely bronzy black. Mesepimeron and metepisternum almost entirely chestnut brown, becoming paler above metakatepisternum. Upper part mesokatepisternum chestnut brown, becoming paler towards coxa. Metepimeron yellowish with brown area below metepleural suture, expanded near antealar carina. Metakatepisternum and venter of synthorax yellowish. Legs (right anterior leg absent below trochanter): each with coxa and trochanter yellowish, femur yellowish with faint, poorly defined dark streaks on extensor and flexor surfaces, dark for short distance above joint with tibia. Tibia brown with obscure darker patches, tarsi with small black marks at segment joints, claws pale brown. Wings: 14 Px in Fw, 14 (left) or 12 (right) in Hw. Basal Ax slanted in all wings. Vein Ab present, joined to Ac to form Y with short stalk. Arculus slightly distal to Ax2. R4 arising just distal to subnodus in Fw, at subnodus in Hw, IR3 joined to it by a short stalk. Pterostigma trapezoidal with costal side shorter than anal side, brown with narrow pale border, covering slightly more than one underlying cell. Abdomen. S1 brown, becoming pale lower laterally. S2 dark brown above and laterally apically, paler brown basally laterally, margin of tergite pale. S3–7 largely very dark brown to black, with broad basal whitish markings becoming brown centrally dorsally. S8 similar but basal marking not reaching dorsum and extended along lower margin. S9–10 (Figs 8, 10) brown and black laterally, blue above; S9 with deflated appearance dorsally. Anal appendages (Figs 12–14): cerci brown, in lateral view broad at base, rapidly narrowing, upper margin running ca straight to rounded apex, lower margin sinuous (Fig. 13). In dorsal view (Fig. 12) short, sharp pointed, interior projection at ca one-third length, narrowing immediately after this, somewhat hollowed on inner surface. Paraprocts pale but darkening towards tips, simple, lacking spines or projections (Figs 13, 14). In lateral view (Fig. 13) tapering from broad base, turned slightly down and inward apically, apices directed upwards, in ventral view (Fig. 14) apices appearing rounded. Genital ligula. Terminal segment narrower than penultimate segment, apically widened and divided into two arms lying on either side of shaft (Fig. 15), these expanded and turned through almost a right angle at ends, so apices pointed toward thorax and slightly down. Internal fold wide, clearly visible in ventral view. Measurements (mm). Abdomen without anal appendages 33, cercus ca 1, Hw 21.5. Female. Overall very similar to male, except as noted below. Head (Fig. 2). Labium paler than in male. Thorax. Prothorax with corners of posterior pronotal lobe produced to rear (Figs 4, 5, 7), horns slightly shorter than in male, upright (Fig. 4). Wings with R4 at subnodus except in right Fw, where slightly distal to subnodus, 12 Px in Fw, 11 Px in Hw. Pt orangey brown. Abdomen (Figs 9, 11). S8 brown above, whitish lower laterally and most of sternum, except narrow dark central longitudinal streak. S9 brown basally and lower laterally, remainder blue. S10 short, blue above, pale lower laterally. Cerci about same length as S10, triangular in lateral view. Ovipositor extending further than tips of cerci by their own length, dark brown and pale, styles (broken) dark brown. Measurements (mm). Abdomen without anal appendages or ovipositor 29.5, Hw 21.5. Variation in paratypes. Males. There is little variation in markings, none significant. The exact shape of the sinuous lower margin of the cerci in lateral view shows some small variation. S9 is not depressed on the larger specimen but is on the smaller, the horns on the posterior pronotal lobe are shorter in the same specimen and in the Hw only Ac is present There is significant variation in size between the paratypes (see below), which are both smaller than the holotype. Females. One of the female paratypes is teneral and although recognisably this species, is of no use for measurements and vein counts. The other is mature, and the pale colour on the labrum is reduced compared to the female described, and bluish. The corners of the posterior pronotal lobe are only slightly produced to the rear, the horns are slightly longer (relative to the rest of the posterior pronotal lobe) than in the female described, and slightly curved forwards. The cerci are a little longer than S10. Measurements (mm). Males: 12 Ax in Fw, 11 in Hw, Abdomen without anal appendages 29–32, Hw 18.5–20. Female: 13 Px in Fw, 12 in Hw, abdomen without anal appendages or ovipositor 29, Hw 20.5. Diagnosis. The male is easily separated from its known congeners in Borneo except D. forficula, by the extremely simple form of its paraprocts, lacking any spines or projections, and tapering to tip. It is separated from D. forficula by the paraprocts lacking a sharp turn around mid-length. Both sexes are separated from all other Drepanosticta species known from Borneo by the form of the posterior pronotal lobe, with a pair of short erect and flattened horns positioned slightly in from the free corners. Where a pair of upright horns are present on the posterior pronotal lobe in other species they differ in form, and the species in question is either considerably smaller or has antehumeral markings. Remarks. The females are associated with the male by reasonable supposition; that from the same location as the holotype was found in the same seepage as the male, and is closely similar in colouration and the structure of the posterior pronotal lobe. The females from the second location were found within a metre of the males. The holotype was found perched at around head height on vegetation at the side of a short arm of the seepage, the female was in a separate, darker, arm of the same seepage. The male paratypes were perching close to a bank at the extreme head of the seepage, at about waist height, and were very inconspicuous. The locality at Sungai Jela is located in pristine or near pristine mixed dipterocarp forest, the other location is in forest with a history of disturbance for local use, but there was no sign of disturbance around the stream where the species was found. The relationships of Drepanosticta adenani to other species known from Borneo or beyond are not clear. Considering only species from Borneo, it shares extremely simple paraprocts and simple cerci with D. forficula, and despite the different shape of the posterior lobe of the prothorax, lacking in D. forficula, it may be closest to that species. The deflated appearance of S 9 in the holotype and one of the male paratypes, whilst undoubtedly largely an artefact caused by drying, is curious because such artefacts are common in D. forficula and D. sbong (see Dow (2010: 65–66); D. sbong is another species that is difficult to place), but much less so in other members of the Bornean Platystictidae. Further discussion of the relationships of D. adenani would be premature and merely speculative. Together with Telosticta iban Dow, 2014 and Elattoneura mauros Dow, Choong & Ng, 2010, Drepanosticta adenani is the third species of damselfly to be described from Lanjak Entimau. None of these species has yet been found outside of the wildlife sanctuary, illustrating the importance of this area for biodiversity conservation in Sarawak.Published as part of Dow, Rory A. & Reels, Graham T., 2018, Drepanosticta adenani sp. nov., from the Lanjak Entimau Wildlife Sanctuary in Sarawak (Odonata: Zygoptera: Platystictidae), pp. 429-435 in Zootaxa 4379 (3) on pages 430-434, DOI: 10.11646/zootaxa.4379.3.6, http://zenodo.org/record/117469
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