Devade longa, Wang & Yang & Marusik & Zhang, 2025

Wang, Lu-Yu, Yang, Yun-Shan, Marusik, Yuri M. & Zhang, Zhi-Sheng, 2025, Review of the spider genus Devade Simon, 1885 (Araneae: Dictynidae) from China, European Journal of Taxonomy 989, pp. 289-310 : 293-296

Devade longa sp. nov.

urn:lsid:zoobank.org:act:46EE5301-5716-4F18-AA81-F657959EE8C9

Figs 2–3 , 11

Chinese name

长带ḍ

Differential diagnosis

The new species resembles D. qiemuensis ( Figs 8–10 ) in having a longer palpal tibia (longer than half of the length of the cymbium), the fingernail edge-shaped basidorsal fold (BF) of the cymbium and similar spermathecae, but it differs by having the tibia as long as the cymbium ( Figs 2A–C , 3C–E ) (vs shorter, Figs 8A–C , 9C–E , 10C–E ), the anterior side of the mesal process of the conductor posterior arm with a notch ( Figs 2B , 3D ) (vs lacking, Figs 8B , 9D , 10D ), and the short septum, ca 2 times as long as wide ( Figs 2D , 3F ) (vs 3 times as long as wide Figs 8D , 9F , 10F ).

Etymology

The specific epithet comes from the Latin adjective ‘ longus ’, meaning ‘long’, and refers to the longer tibia of the male palp.

Type material

Holotype CHINA • ♂; Xinjiang, Bole City, Aibi Lake ; 44°57′40″ N, 82°38′38″ E; elev. 257 m; 12 Jun. 2014; L.Y. Wang and X.K. Jiang leg.; SWUC-T-DI-20-01 .

Paratypes (5 ♂♂, 8 ♀♀) CHINA • 4 ♂♂, 8 ♀♀; same data as for holotype; SWUC-T-DI-20-02 to SWUC-T-DI-20-13 • 1 ♂; Xinjiang, Alashankou ; 45°11′33″ N, 82°36′02″ E; elev. 328 m; 12 Jun. 2014; L.Y. Wang and X.K. Jiang leg.; SWUC-T-DI-20-14 .

Description

Male (holotype SWUC-T-DI-20-01, Fig. 3A )

MEASUREMENTS. Total length 5.21. Carapace 2.34 long, 1.88 wide; abdomen 2.80 long, 1.54 wide. Eye sizes and interdistances: AME 0.11, ALE 0.13, PME 0.11, PLE, 0.11; AME–AME 0.06, AME– ALE 0.02, PME–PME 0.11, PME–PLE 0.08, ALE–PLE 0.05. MOA 0.33 long, anterior width 0.27, posterior width 0.33. Clypeus height 0.15.

CARAPACE. Brown, cephalic part darker than thoracic; pattern weakly developed, with dark margins and dark radial stripes.

CHELICERAE. With 3 promarginal and 2 retromarginal teeth.

LEG MEASUREMENTS. I = 7.46 (2.00, 2.65, 1.73, 1.08); II = 7.25 (1.92, 2.47, 1.74, 1.12); III = 7.08 (1.92, 2.47, 1.74, 1.12); IV = 8.95 (2.30, 2.90, 2.45, 1.30).

ABDOMEN. Light brown with ca 8–9 dark transverse chevrons.

PALP ( Figs 2A–C , 3C–E ). Tibia long, almost as long as cymbium. Retrolateral tibial apophysis laminar and directed ventrally. Basidorsal fold (BF), fingernail edge-shaped in dorsal view. Posterior arm of conductor with 2 large processes: mesal process narrow and hook-like, with pointed tip; retrolateral process wide and laminar. Embolus originating at about 11:30 o’clock position, distal part hidden by conductor.

Female (paratype SWUC-T-DI-20-02, Fig. 3B )

MEASUREMENTS. Total length 6.04. Carapace 2.39 long, 1.80 wide; abdomen 3.50 long, 2.25 wide. Eye sizes and interdistances: AME 0.11, ALE 0.12, PME 0.11, PLE, 0.12; AME–AME 0.07, AME– ALE 0.04, PME–PME 0.13, PME–PLE 0.09, ALE–PLE 0.06. MOA 0.33 long, anterior width 0.28, posterior width 0.35. Clypeus height 0.13.

LEG MEASUREMENTS. I = 7.27 (2.11, 2.46, 1.61, 1.09); II = 6.81 (1.98, 2.25, 1.56, 1.02); III = 6.39 (1.66, 2.01, 1.74, 0.98); IV = 8.37 (2.23, 2.84, 2.20, 1.10).

CARAPACE AND ABDOMEN. Same morphological pattern as in male except lighter in color.

EPIGYNE ( Figs 2D , 3F ). Epigynal plate 1.7 times as wide as long; fovea as long as wide; septum 2 times as long as wide. Copulatory openings fissured, separated by 3 times width of septum.

VULVA ( Figs 2E , 3G ). Copulatory ducts indistinct. Spermathecae globular, separated by almost 2 times their diameters, anterior part with glandular shallow extension. Fertilization ducts hook-like and diverging.

Distribution

China (Xinjiang) ( Fig. 11 ).

Figures

Fig. 2. Devade longa sp. nov. A–C. Holotype, ♂ (SWUC-T-DI-20-01). D–E. Paratype, ♀ (SWUC- T-DI-20-02). A. Left palp, ventral view. B. Left palp, retrolateral view. C. Left palp, dorsal view. D. Epigyne, ventral view. E. Vulva, dorsal view. Abbreviations: AA = anterior arm of conductor; BF = basidorsal fold of cymbium; CO = copulatory opening; Em = embolus; FD = fertilization duct; MPA = mesal process of conductor posterior arm; RPA = retrolateral process of conductor posterior arm; RTA = retrolateral tibial apophysis; Se = septum; Sp = spermatheca. Scale bars: A–C = 0.5 mm; D–E = 0.2 mm.

Fig. 3. Devade longa sp. nov. A, C–E. Holotype, ♂ (SWUC-T-DI-20-01). B, F–G. Paratype, ♀ (SWUC- T-DI-20-02). A. Habitus, dorsal view. B. Habitus, dorsal view. C. Left palp, ventral view. D. Same, retrolateral view. E. Same, dorsal view. F. Epigyne, ventral view. G. Vulva, dorsal view. Scale bars: A–B = 1 mm; C–E = 0.5 mm; F–G = 0.2 mm.

Fig. 11. Distribution of the species of genus Devade in China.

Fig. 8. Devade qiemuensis (Hu & Wu, 1989) stat. rev. from Xinjiang. A–C. Male (SWUC-DIDQ-272). D–E. Female (SWUC-DIDQ-274).A. Left palp, ventral view.B. Same, retrolateral view.C. Same, dorsal view. D. Epigyne, ventral view. E. Vulva, dorsal view. Abbreviations: AA = anterior arm of conductor; BF = basidorsal fold of cymbium; CO = copulatory opening; Em = embolus; FD = fertilization duct; MPA = mesal process of conductor posterior arm; RPA = retrolateral process of conductor posterior arm; RTA = retrolateral tibial apophysis; Se = septum; Sp = spermatheca. Scale bars = 0.2 mm.

Fig. 9. Devade qiemuensis(Hu & Wu, 1989) stat. rev. from Xinjiang.A, C–E. Male (SWUC-DIDQ-272). F–G. Female (SWUC-DIDQ-274).A. Habitus, dorsal view.B. Habitus, dorsal view.C. Left palp, ventral view. D. Same, retrolateral view. E. Same, dorsal view. F. Epigyne, ventral view. G. Vulva, dorsal view. Scale bars: A–B = 1 mm; C–G = 0.2 mm.

Fig. 10. Devade qiemuensis (Hu & Wu, 1989) stat. rev. from Inner Mongolia, A, C–E. Male (SWUC- DIDQ-73). F–G. Female (SWUC-DIDQ-79). A. Habitus, dorsal view. B. Habitus, dorsal view. C. Left palp, ventral view. D. Same, retrolateral view. E. Same, dorsal view. F. Epigyne, ventral view. G. Vulva, dorsal view. Scale bars: A = 1 mm; B = 2 mm; C–G = 0.2 mm.