21,297 research outputs found
Data for Experimental constraints on stable potassium (K) isotope fractionation during phase separation in NaCl–KCl–H2O and KCl–H2O systems: implications for the K isotope composition of seafloor hydrothermal vent fluids
No full textTable data in .xlsx format includes four worksheets, one for each table.Potassium isotope data from hydrothermal phase separation experimentsNSF Award number: 2238685Charin, Soisiri; Evans, Guy; Chen, Xinyang; Xing, Yanlu; Chen, Tianyu; Seyfried, William; Zheng, Xinyuan. (2025). Data for Experimental constraints on stable potassium (K) isotope fractionation during phase separation in NaCl–KCl–H2O and KCl–H2O systems: implications for the K isotope composition of seafloor hydrothermal vent fluids. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://hdl.handle.net/11299/271019
Palaeoperilestes Zheng 2016
No full text3.153 Genus Palaeoperilestes Zheng et al., 2016 Palaeoperilestes Zheng et al., 2016d: 200. Type species: Palaeoperilestes electronicus Zheng et al., 2016.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 286, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Cretagomphaeschnaoides Zheng 2016
No full text3.145 Genus Cretagomphaeschnaoides Zheng et al., 2016 Cretagomphaeschnaoides Zheng et al., 2016a: 2. Type species: Cretagomphaeschnaoides jarzembowskae Zheng et al., 2016.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 285, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Burmahemiphlebia Zheng 2016
No full text3.147 Genus Burmahemiphlebia Zheng et al., 2016 Burmahemiphlebia Zheng et al., 2016a: 2. Type species: Burmahemiphlebia zhangi Zheng et al., 2016.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 285, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Palaeodysagrion Zheng 2016
No full text3.148 Genus Palaeodysagrion Zheng et al., 2016 Palaeodysagrion Zheng et al., 2016b: 7. Type species: Palaeodysagrion cretacicus Zheng et al., 2016.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 285, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
FIGURES 31–34 in A new species of the scale insect genus Newsteadia Green (Hemiptera Coccomorpha: Ortheziidae) from China
No full textFIGURES 31–34. Newsteadia fanjingensis Zheng & Xing sp. n., adult male: 31. Dorsal view. 32. Lateral view. 33. Ventral view. 34. Tubular pore.Published as part of Zheng, Xinyi & Xing, Jichun, 2021, A new species of the scale insect genus Newsteadia Green (Hemiptera Coccomorpha: Ortheziidae) from China, pp. 481-505 in Zootaxa 4981 (3) on page 488, DOI: 10.11646/zootaxa.4981.3.4, http://zenodo.org/record/492121
Mallecupes Jarzembowski, Wang & Zheng 2016
No full text3.279 Genus Mallecupes Jarzembowski, Wang & Zheng, 2016 Mallecupes Jarzembowski, Wang & Zheng, 2016c: 3. Type species: Mallecupes qingqingae Jarzembowski, Wang & Zheng, 2016.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 312, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Burmadysagrion Zheng, Wang & Nel 2016
No full text3.149 Genus Burmadysagrion Zheng, Wang & Nel, 2016 Burmadysagrion Zheng, Wang & Nel, 2016c: 127. Type species: Burmadysagrion zhangi Zheng, Wang & Nel, 2016.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 285, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Newsteadia fanjingensis Zheng & Xing 2021, sp. n.
No full textNewsteadia fanjingensis sp. n. Material examined Holotype: Adult ♀ (GUGC), ‘ CHINA: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 1 November 2020, / Lan Zhang leg.’ Paratypes: 2♂♂ (GUGC), ‘ CHINA, Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2019. XI.16, / Xin-Yi Zheng leg. ’; ♂ (GUGC), ‘ China, Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020. VIII. 16, / Xin-Yi Zheng leg. ’; 3♂♂ (GUGC), ‘ CHINA, Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.XI.1, / Lan Zhang leg. ’; 2♀♀ (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2019.XI.16, / Xin-Yi Zheng leg. ’; 2♀♀ (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.V.13, / Xin-Yi Zheng leg. ’; ♀ (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.VI.18, / Xin-Yi Zheng leg. ’; ♀ (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.VIII.16, / Xin-Yi Zheng leg. ’; ♀ (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.XI.1, / Lan Zhang leg. ’ 3 first-instar nymph (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020. VI.18, / Xin-Yi Zheng leg. ’; 2 second-instar nymph (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.V.13, / Xin-Yi Zheng leg. ’; 2 third-instar nymph (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.VIII.16, / Xin-Yi Zheng leg. ’; 1 prepupal male (GUGC), ‘ China: Guizhou Prov., Tongren City, / Jiangkou County, Fanjingshan, / 2020.V.13, / Xin-Yi Zheng leg. ’ Description Adult female (n=8) Unmounted specimens (Figs 5–9) Body with wax plates subrectangular. Dorsum entirely covered with white wax plates; those on middorsum protrude forwards, and plates on margin radiate in all directions. Venter of abdomen covered by waxy ovisac. Exposed body (with wax plates removed) oval. Body yellow, eyestalk black at base, yellow at tip. Many spines present on dorsum. Slide-mounted female (Figs 10–26) Body 1.8 (1.6–2.2) mm long, 1.4 (1.2–1.9) mm wide. Antenna 7 segmented (Fig. 10), apical segment longest, scape widest, segments III– VI rather short and subequal. Antenna total length 685 (685–957) μm. Segment lengths (μm): scape (I), 170 (170–229); pedicel (II), 160 (160–245); III, 46 (46–74); IV, 43 (40–74); V, 43 (35–59); VI, 45 (42–60), and apical segment (VII) 193 (193–247). Details of antennal spine-like setae: I, 10 or 11 (9–11); II, 9 or 10 (9–18); III, 2 or 3 (2–4); IV, 3 (3–6); V, 3 or 4 (2–4); VI, 3 (2 or 3); apical segment (VII) with 4 or 5 (4–7) spine-like setae, apical seta 81 or 89 (81–105) μm long, subapical seta 28 or 32 (28–39) μm long, medial sensory seta present, 32 (31–38) μm long (Fig. 11). Sensorium on segment II subapical on dorsal surface. Most setae on segments spinelike, each 15–31 (15–49) μm long, dorsum of segment I with 1 basal spine-like seta (Fig. 12). Eyestalk situated near base of scape, with wider base and finger-like apex, 63 or 69 (53–84) μm long, width at base 31 or 33 (30–61) μm. Venter. Labium conical, with a narrow apex, 2 segmented, about 197 (178–235) μm long, with 11 or 13 (11– 18) setae on each side, with spine-like setae at base each about 20 (17–23) μm long, hair-like setae at apex each about 43 (43–46) μm long. Stylet loop as long as labium, 192 (174–226) μm long (Fig. 13). Legs without a suture between trochanter and femur and with tibia and tarsus fused, without a tibio-tarsal articulation. Anterior leg length measurements (μm): coxa 114 (111–160), trochanter-femur 349 (352–559), tibia-tarsus 468 (466–652), claw 41 (39–63), claw digitules 9 (9–20); setal details: coxa with 14 or 17 (14–17) setae, trochanter-femur with 50 or 53 (50–56), tibia-tarsus with 55 or 60 (41–60). Middle leg length measurements (μm): coxa 115 (110–184), trochanterfemur 370 (356–593), tibia-tarsus 450 (446–682), claw 44 (43–62), claw digitules 9 (9–19); setal details: coxa with 15 or 16 (12–20) setae, trochanter-femur with 50 or 53 (41–53), tibia-tarsus with 51 or 59 (39–59). Hind leg length measurements (μm): coxa 130 (126–197), trochanter-femur 408 (406–638), tibia-tarsus 592 (590–801), claw 47 (47–64), claw digitules 15 (13–17); setal details: coxa with 17 or 18 (13–18) setae, trochanter-femur with 50 or 57 (47–57), tibia-tarsus with 64 or 68 (55–68). Most setae on legs spine-like: coxa with 2–5 basal spine-like setae, each about 13–20 μm long, distal setae spine-like but longer, each 23–32 (23–34) μm; trochanter with 2 or 3 sensory pores on each surface and 2 tiny setae at basal articulation (Fig. 14), other setae on trochanter-femur subequal in length, each about 16 μm. Hind leg with a sensory seta anterior to tibial sensorium, 31 (23–34) μm long (Fig. 16); anterior and middle legs each with a seta similar to sensory seta but smaller near tibial sensorium, each 7 (6–15) μm long (Fig. 15), several longer spine-like setae before sensorium, 17–23 (17–35) μm long, other tibia-tarsal setae short, conical and subequal in length, each about 15 μm long; claw digitules conical, claw without a denticle (Fig. 17). Ovisac band not interrupted medially, with pores anterior to anterior section of ovisac band but without pores immediately posterior to anterior section of ovisac band; anterior section of ovisac band about 6–10 spines wide; lateral and posterior parts of ovisac band with 5 band clusters on margin of abdominal venter, cluster C6 absent; C1–C3 ovisac band clusters separated, C4 and C5 contiguous; longest spines within ovisac band each about 18 (18–25) μm long. Region surrounded by ovisac band containing 3 hair-like setae, and 52 (48–52) spine-like setae near vulva (Fig. 25). Wax plates present in small groups on venter of thorax and head. Wax plate on head partially divided longitudinally. Anterior thoracic spiracles each with 8 or 12 (8–20) quadrilocular pores, spiracular opening 28–29 (28–36) μm in diameter (Fig. 18). Hair-like setae few, scattered around each coxa and antenna, with few setae on anterior and lateral edges of ovisac band and in segmental rows in ovisac band. Each spine band in ventral lateral area containing 1–5 setae. Hair-like setae of 2 kinds: long hair-like setae, each about 25 (24–32) μm long (Fig. 19); and rather small and slender, each about 18 (12–18) μm long (Fig. 20). Quadrilocular pores of 2 kinds: tubular quadrilocular pores protruding from derm, each 6–11 μm long, associated with wax plates whose spines are each 14–18 (14–19) μm long (Fig. 21); and sessile quadrilocular pores, each 4–5 μm in diameter, forming transverse bands within ovisac band and scattered between wax plates elsewhere, most abundant within ovisac area (Fig. 22). Discoidal pores of 2 sizes: small pores associated with sessile quadrilocular pores except area within ovisac, each 2–3 μm in diameter (Fig. 23); and larger pores present only within ovisac area, each about 4 μm in diameter (Fig. 24). Minute tubular ducts present in wax plates. Marginal abdominal spiracles numbering 5 pairs, each associated with sessile quadrilocular pores and several hair-like setae. Dorsum. Covered with wax plates, wax plate on head partially divided longitudinally, 7dm and 5 mid-dorsal clusters sometimes completely separated medially, 3 mid-dorsal clusters fused completely, other mid-dorsal clusters partially separated medially (separated anteriorly but fused posteriorly). Lateral thoracic wax plates 4 and 7, sometimes fused posteriorly with medial wax plates 3 and 5. Marginal clusters of abdominal segments III– V or IV– V (7cl to 7el or 7dl to 7el) running together to form a continuous series. Wax plate on head 539 (539–650) μm long; medial wax plates on thorax each 7–12 spines wide, 223–435 (219–441) μm long, lateral thoracic wax plates each 12–16 spines wide, 145–155 (145–233) μm long; mid-dorsal plates on abdomen each 1–8 spines wide, 84–385 (80–443) μm long, lateral abdominal wax plates each 72–176 (72–229) μm long. Spines on dorsum subequal in length with rounded apices, each 18–19 (17–19) μm long. Long hair-like setae present in marginal clusters near anterior edges of marginal wax plates, and near anterolateral and anteromedial edge of each dorsomedial wax plate; small hair-like setae present between spines. Quadrilocular pores of 2 types: tubular quadrilocular pores within wax plates; and sessile quadrilocular pores forming rows between wax plates. A few small discoidal pores present, associated with sessile quadrilocular pores. Minute tubular ducts present in wax plates. Anal ring with 1 outer and 2 or 3 inner rows of pores; anal ring setae short and stout with blunt rounded apices, each about 56 (56–66) μm long, anal ring 78 (78–97) μm wide (Fig. 26). Host plants. The specimens were collected from under the mosses Platyhypnidium riparioides (Hedw.) Dixon (Bryophyta: Brachytheciaceae) and Metacalypogeia sp. (Marchantiophyta; Calypogeiaceae), growing on the trunks of Acer sp. (Magnoliophyta; Sapindaceae). Etymology. The species epithet is derived from the name of the type locality, Fanjingshan, combined with the Latin ending ‘- ensis ’, meaning ‘from’. Remarks. In the Oriental Region, N. fanjingensis sp. n. is similar to N. koeroesicsomai Kozár & Konczné Benedicty, 1999, and N. vasarhelyii Kozár & Konczné Benedicty, 1999 in having 7-segmented antennae. Newsteadia fanjingensis differs from N. koeroesicsomai in having (character states in N. koeroesicsomai in parentheses): (i) antennal apical segment with subapical and medial sensory setae (without subapical and medial sensory setae); (ii) ovisac band with lateral sections incomplete (ovisac band complete); (iii) dorsal marginal clusters of abdominal segments III‒ V or IV‒ V fused to form a continuous series (dorsal abdominal marginal clusters all separate); and (iv) dorsum with quadrilocular pore rows between wax plates (only small number of quadrilocular pores between wax plates). Finally, N. fanjingensis differs from N. vasarhelyii in having (character states in N. vasarhelyii in parentheses): (i) quadrilocular pore rows present between dorsal wax plates (quadrilocular pores absent from between wax plates); and (ii) dorsally, marginal clusters on abdominal segments III‒ V or IV‒ V fuse to form a continuous section (clusters of abdominal segments II‒ V fuse to form a continuous series). Adult male (n=5) Unmounted specimens (Figs 27–30) Live adult male slender; wings oval; legs slender and well developed; antenna and wings longer than body; compound eyes black; body greyish white because mealy and cottony wax products more-or-less cover the body; with wax filaments protruding from the tubular pores on abdominal segment VII. Adult male, soaked in 75% ethyl alcohol, with pleural region and wings nearly transparent, and antenna, extremities, sclerites on head, thorax and abdomen brown. Head clearly separated from thorax. Slide-mounted adult male (Figs 31–46) Total body length 1.8–2.1 mm, thorax about 0.5–0.6 mm wide. Body with few hair-like setae (hs); loculate pores absent. Simple minute pores (smp) present throughout body, each 2–3 μm in diameter. Head: Flat, subpentagonal, 280–283 µm long, 239–265 µm wide. Mid-cranial ridge (mcr) well developed on dorsum and venter, but fading posteriorly before postoccipital ridges dorsally. Anterior dorsal mcr also fades and separates from mcr on venter, with 2 hs anteriorly on dorsal region of fading mcr. Ventrally, mcr reaches level of anterior margins of eyes and bifurcates. Dorsal mcr with 4–6 flagellate hairlike setae on each side (each seta 35–57 μm long); also 42–48 smp near mcr on each side, smp situated almost on anterior of mid-dorsal plate, in addition, a pit present posterolaterally on each side. Ventromedial part of epicranium with 8–11 ventral mcr setae (each 38–56 µm long) and 1–4 smp on either side. Dorsomedial plate broad-leaf-shaped, apex tapering anteriorly, postoccipital ridges with a medial “petiole-like” extension. Ventromedial plate subpentagonal, sclerotized posterior part with a developed cranial apophysis, anterolateral ridges strongly sclerotized, separated by scape. Ventral plate subrectangular; mouth opening present, with sclerotized oesophagus. Tentorium well developed, posterior tentorium extended and embedded in prothorax, seeming to articulate with cervical sclerite. Compound eyes each 86–96 μm long, with 71–74 ommatidia, each ommatidium 11–15 μm in diameter. Ocelli each 21–28 μm wide, 32–43 μm long. Ocular sclerite with a strong Y-shaped postocular ridge, but posterior arm not articulating with cervical sclerite. Antenna (Figs 35–36): 10 segmented, total length 2.4–2.5 mm, longer than body, wings and legs. Scape: 99–108 µm long, 66–73 µm wide, with 10–13 long hs distally (each seta 49–60 µm long) and a dorsal spinose seta near base (12–15 µm long); scape without pores; inserted at membrane between dorso- and ventromedial plates. Pedicel: 69–85 µm long, 51–54 µm wide; with 7–11 hs (each seta 23–46 µm long), 3 or 4 coeloconic sensilla ventrally and a campaniform sensilla dorsally. Segments III–X all filiform, each 25‒33 µm wide, with numerous fleshy setae (fs) each 30–40 µm long, all segments except apical segment each with a few hs, each hs 15–46 µm long. Except for scape, pedicel and proximal part of segment III, rest of antenna with plate-like microridges, each with microspines, which contribute to tuberculate surface on each segment (Fig. 52). Antennal segment lengths (µm): III, 341–356; IV, 327–340; V, 313–329; VI, 315–345; VII, 292–331; VIII, 235–269; IX, 218–239 and X, 180–212; approximate number of setae on segments: III, 15–25 hs + 12–20 fs; IV, 15–17 hs + 32–40 fs; V, 8 or 9 hs + 39 or 40 fs; VI, 7 or 8 hs + 37–44 fs; VII, 3 or 4 hs + 34–43 fs; VIII, 3 or 4 hs + 22–31 fs; IX each with about 2–4 hs + 25 fs. Segment X with about 16 fs + 1 strong terminal bristle, about 21–32 µm long, and 1 antennal bristle laterally near apex, 54–59 µm long. Thorax: Prothorax: Prothorax separated from head by a cervical constriction; with a largely membranous region between cervical constriction and mesothorax. Dorsally, a minute pair of posttergites on dorsum, each about 25 µm long, with a small and slightly slender pronotum between the posttergites, about 27 µm long; each side with 2 hs near the pronotum (each seta about 37 µm long) and 1 smp on one side. Laterally, proepisternum + cervical sclerites complex, anterior cervical sclerite seems to articulate with tentorium. Posteriorly, it is divided into 3 arms: (a) dorsal arm short, extending into a plate that bears 4 hs and 4 smp; (b) middle arm forms, together with pleural ridge, a long apophysis; and (c) ventral arm joined to precoxal ridge by a sclerotized plate. Ventrally, prosternum about 217 µm long, with a triangular sclerotized area, lateral margins weak, but posterior margin sclerotized with end fishtail-like. Prosternum with 3–7 hs and about 16 or 17 smp. Mesothorax: Dorsally, prescutum, scutum and scutellum uniformly sclerotized. Prescutum oval, separated anterolaterally from scutum by short marginal ridges, posteriorly almost continuous with scutum. Prescutum 112–129 µm long and 176–200 µm wide, without prescutal setae and pores. Prealare narrow and weakly sclerotized, arising from prescutal sutures and extending to episternum. Scutum about 114 µm long and 313 µm wide, with scutal hs + about 40–49 smp on each side medially (each seta about 34 µm long), posterior to prescutum. Scutum lateral margins weak. Laterally, anterior tegula strongly sclerotized, posterior one bulging, with 4 tegular setae but without pores. Scutellum subpentagonal, 93–103 µm long and 131–155 µm wide, with posterior margin marked by a thick ridge that extends posterolaterally as posterior notal wing process to postalare. Scutellum without setae and pores. Mesopostnotum separated from scutellum by a large membrane and overlapped by metathoracic fold so that only anterior parts of postalares may be seen. Postnotal apophyses well developed. Postalares trifurcate; anterior arm overlapping pleural ridge, ventral arm extending posteriorly to pleural apophysis, dorsal arm extending dorsally a short distance. Mesopleural apophysis clearly visible, a short projection arising from the ridge above apophysis forming a boundary between supraepisternum and infraepisternum. Supraepisternum divided into 2 parts: the anterior, distinctly bulgeing, articulates with narrow and long basalare, the posterior one produces a ridge-like projection (pleural wing process) running dorsally and articulates with basalare. U-shaped subalare present posterior to pleural wing process. Epimeron small and well sclerotized. Mesopleuron without setae or pores. Mesothoracic spiracle opening within space between anterior leg coxa and infraepisternum, with peritreme almost circular, 28–33 µm wide, with 1 hs. Ventrally, basisternum subhexagonal, strongly sclerotized, 188–224 µm long and 381–413 µm wide. Anterior marginal and longitudinal medial ridge developed, with about 17–20 basisternal hs on each side (each seta about 25 µm long). Furca large, narrow at base, arms rather broad and very divergent, extending almost to marginal ridge anteriorly. First axillary sclerite elongate, with anterior tip curved around anterior of second sclerite and articulated with costal complex. Third axillary sclerite strongly sclerotized, proximal tip articulated with postalare; anterior tip articulated with second sclerite, and distal tip fused with wing. Metathorax: Dorsally, small metapostnotum present medially, 48 µm wide, with 4 hs present medially and 2 hs more laterally on each side (each seta about 28 µm long). A narrow sclerotized segmental ridge situated between metathorax and first abdominal segment. Laterally, metapleural ridge and apophysis developed; pleural wing process extending from apophysis to base of haltere, with dorsal tip broadened. Metaprecoxal ridge arising from base of metapleural ridge. Metepimeron narrow, represented by a sclerotized ridge arising from base of pleural apophysis; posteriorly, it produces a postcoxal ridge that surrounds the coxa and approaches the first abdominal sternite. Metapleuron without setae or pores. Ventrally, metaprecoxal ridge strong, extending ventrally but not fused with metasternum. Metasternum large and sclerotized, broadest anteriorly, almost reaching to metapleural region, metasternum anterior margin with apophyses on each side, a circular isolated sclerotization between the apophyses and metaepisternum. Furca similar in shape to mesothoracic one, slightly smaller, with a large central heart-shaped pit with strongly sclerotized lateral margins. Metasternum sclerotized area with 6–7 long hs and 15–23 smp on each side. Metathoracic spiracle situated anteriorly to pleural apophysis, peritreme almost circular, about 26–28 µm wide, with 1 hs. Wings and halteres (Figs 37–40): Forewings each 2.5 mm long, about 1 mm wide, tips rounded (Fig. 37). Wing disc formed of one layer of hexagonal cells with large nuclei that are responsible for the tuberculate sculpture of the wing surface (Fig. 38). Microtrichia absent. Subcostal vein extending to about 2/3 wing length, cubital vein arising from near the base of subcostal vein and running to about 2/3 wing length. A minute transparent patch arising from second axillary sclerite. Anal fold membranous and transparent, arising from near posterior part of minute transparent patch and delimiting a small anal lobe. Posterior margin of lobe forms a narrow fold for holding the hamuli. Each forewing with 4–6 alar setae plus a line of about 12–15 circular sensoria along subcostal vein (Fig. 39). Hamulohalteres each about 179–253 µm long, about 18 µm in diameter, with 1 hamulus 67–82 µm long. Hamulohalteres each with sclerotized dorsum (Fig. 40). Legs (Figs 41–43): Legs slender, without pores, middle leg shortest, posterior leg longest. All leg segments present. Leg measurements (µm): total length: anterior leg 1668–1695, middle leg 1544–1621, hind leg 1802–1819. Anterior leg coxa 91–114, trochanter 58–83, femur, 465–531, tibia 626–689, tarsus 247–273, claw 55–73; middle leg coxa 102–119, trochanter 64–71, femur 393–418, tibia 662–686, tarsus 243–258, claw, 66–75; hind leg coxa 106–119, trochanter 92–107, femur 433–489, tibia 781–830, tarsus 278–285, claw 61–74. Setae on legs various, basal setae spine-like, situated on the base of coxa and trochanter, each about 15–31 µm long; few short peg-like setae, each 7–10 µm long with a blunt apex, present on trochanter, tibia and tarsus, corresponding with similar setae on penial sheath (Fig. 42); hs abundant, each 26–60µm long; spurlike setae, each 13–48 µm long, start to arise on proximal one-third of tibia, setae on tarsus all spurlike. Coxa 86–105 μm wide, with 3 or 4 spine-like basal setae and about 7–13 apical hs. Trochanter about 37–39 μm wide, with 2 spine-like basal setae, 3 peg-like setae and 1 hs, also with 3 oval sensoria in a row on each side, plus another situated more proximally. Segmental line present between trochanter and femur. Femur about 53–60 μm wide, with about 50 hs. Tibia about 32–39 μm wide, usually slightly arched, with about 120 hs and 40 spurlike setae on distal two-thirds of tibia, also with 3–8 peg-like setae. Tarsus about 22–28 μm wide, about 60 spurlike setae and 3–5 pegs. Claw slender, slightly curved, without a denticle, digitules conical, each 11–12 µm long (Fig. 43). Abdomen: Abdomen consists of 8 pregenital segments and the genital complex. Membranous region large; sternites, tergites and dorsal intersegmental ridges present. Dorsally, segment I well separa
Palaeoperilestes electronicus Zheng 2016
No full text209) Palaeoperilestes electronicus Zheng et al., 2016 Palaeoperilestes electronicus Zheng et al., 2016d: 200. Type specimen(s). H: NIGP163955 (NIGP).Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 286, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
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