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).