Althepus duan Li et Li

Liu, Chang, Li, Fengyuan, Wongprom, Prasit, Zheng, Guo & Li, Shuqiang, 2017, Eleven new species of the spider genus Althepus Thorell, 1898 (Araneae, Ochyroceratidae) from Thailand, Zootaxa 4350 (3), pp. 469-499: 470-473

publication ID

https://doi.org/10.11646/zootaxa.4350.3.3

publication LSID

lsid:zoobank.org:pub:C5A2FCC7-904B-456B-BD8F-5C9FD3D5FB9F

persistent identifier

http://treatment.plazi.org/id/5326CD46-FFFF-FFF7-A096-A020FF74FD89

treatment provided by

Plazi

scientific name

Althepus duan Li et Li
status

sp. nov.

Althepus duan Li et Li  sp. nov.

Figs 1–2View FIGURE 1View FIGURE 2, 21–22View FIGURE 21View FIGURE 22

Type material. Holotype: Male ( IZCAS), Thailand, Kanchanaburi Province, Sai Yok District, Wang Krachae Subdistrict , a cave without name, 14°12.127'N, 99°01.195'E, altitude 438m, 0 1 November 2014GoogleMaps  . Paratypes: 1 female and 1 male, same data as holotype ( IZCAS)GoogleMaps  .

Etymology. The specific name is derived from the Chinese pinyin 'duǎn', which means 'short', referring to the short transparent copulatory ducts; noun in apposition.

Diagnosis. Males resembles to those of Althepus suhartoi Deeleman-Reinhold, 1985  in having similarly shaped conductor and embolus in male palp but can be distinguished by the slice-shaped distal part of the conductor and long and sharpen embolus ( Figs 1A –DView FIGURE 1). Females can be distinguished from those of A. suhartoi  by the unswollen spermathecae ( Fig. 2EView FIGURE 2; swollen spermathecae in A. suhartoi  ).

Description. Male (holotype). Total length 4.16; carapace 1.38 length, 1.45 width; abdomen 2.44 length, 1.43 width. Carapace rounded, yellow, with three longitudinal brown bands of different width, among them, the middle two time wider than the lateral ones ( Fig. 2GView FIGURE 2). Anterior margin of thoracic region distinctly elevated. Clypeus brown. Cheliceral promargin with two teeth, followed by a lamina, retromargin with two small teeth ( Fig. 21AView FIGURE 21). Labium brown, with two light rounded areas basally. Sternum brown. Abdomen elongate, with complex patterns of white and dark-brown dorsally and ventrally. Legs brown, tibia annulated with white. Leg measurements: I missing, II 26.99 (6.86, 0.53, 6.79, 10.58, 2.23), III 17.51 (5.06, 0.53, 4.49, 6.03, 1.40), IV 24.80 (6.99, 0.53, 7.05, 8.33, 1.90). Male palp ( Figs 1A –DView FIGURE 1): tarsus with three slightly curved, serrated bristles at the top of cymbial protrusion ( Fig. 1AView FIGURE 1), one twisted spine with tip directed distally ( Fig. 1AView FIGURE 1); bulb yellow, ovate; embolus arising retrolaterally from bulb, oblique distally; conductor arising distally from bulb, sigmoid distally; embolus and conductor widely separated (the distance is less than two third of diameter of bulb).

Female (paratype). Similar to male in coloration and general features ( Figs 2H –IView FIGURE 2), but with a smaller body size. Internal genitalia with a pair of unswollen spermathecae ( Fig. 2EView FIGURE 2). Measurements: total length 3.95; carapace 1.29 length, 1.33 width; abdomen 2.56 length, 1.34 width. Legs I 41.51 (9.74, 0.55, 10.12, 17.63, 3.47), legs II 23.07 (5.96,0.55, 6.03, 8.65, 1.88), III 16.57 (4.25, 0.55, 5.45, 5.13, 1.19), IV 21.84 (6.40, 0.55, 5.96, 7.05, 1.88).

Variation. Carapace: males 1.38–1.68 long, 1.45–1.88 wide, tibia I 6.79–7.18.

Distribution. Known only from the type locality ( Fig. 22View FIGURE 22).

IZCAS

Institute of Zoology, Chinese Academy of Sciences