Althepus tuqi 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: 491-494

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Althepus tuqi Li et Li

sp. nov.

Althepus tuqi Li et Li  sp. nov.

Figs 17–18View FIGURE 17View FIGURE 18, 21–22View FIGURE 21View FIGURE 22

Type material. Holotype: Male ( IZCAS), Thailand, Krabi Province, Muang District, Tap Prink Subdistrict , Thep Pratan Cave ( Payanak Cave ), 08°10.095'N, 98°52.870'E, altitude 81m, 13 October 2015GoogleMaps  . Paratypes: 2 females and 2 males, same data as holotype ( IZCAS)GoogleMaps  .

Etymology. The specific name is derived from the Chinese pinyin 'tū qǐ', which means 'protrusion', referring to the large lateral protrusion on the tarsus of male palp; noun in apposition.

Diagnosis. The species resembles A. kuan  sp. nov. ( Figs 8–9View FIGURE 8View FIGURE 9) with the male palp, but can be distinguished by the large lateral protrusion on the tarsus ( Figs 17A –DView FIGURE 17), by the needle-like embolus as well as by the long spermathecae ( Fig. 18EView FIGURE 18).

Description. Male (holotype). Total length 3.19; carapace 1.09 length, 1.28 width; abdomen 1.97 length, 0.78 width. Carapace oval ( Fig. 18GView FIGURE 18), yellow, with three longitudinal brown bands of different width, among them, the middle one three times wider than the lateral ones. Anterior margin of thoracic region distinctly elevated. Clypeus brown. Cheliceral promargin with two teeth, followed by a lamina, retromargin with two small teeth ( Fig. 21JView FIGURE 21). Labium brown, with two light rounded areas basally. Sternum brown. Abdomen elongate, brown, with a yellow herringbone pattern on the dorsal surface and two narrow white bands on the ventral surface. Legs brown, femur and tibia annulated with white. Leg measurements: I missing, II 28.16 (6.09, 0.48, 7.05, 10.89, 3.65), III 19.32 (5.89, 0.48, 4.94 6.15, 1.86), IV 24.71 (7.37, 0.48, 7.05, 8.27, 1.54). Male palp ( Figs 17A –DView FIGURE 17): tarsus with three slightly curved and serrated bristles at the top of cymbial protrusion ( Fig. 17AView FIGURE 17), one twisty spine with tip directed towards proximally ( Figs 17C –DView FIGURE 17), one strong spine arising from a small tubercle; bulb yellow, ovate; embolus arising retrolatero-distally from bulb, needle-like and slightly oblique distally; conductor arising distally from bulb, slightly curved distally; conductor and embolus widely separated (the distance is almost equal to diameter of bulb).

Female (paratype). Similar to male in coloration and general features ( Figs 18H –IView FIGURE 18), but with a smaller body size. Internal genitalia with a pair of transparent spermathecae ( Fig. 18EView FIGURE 18). Measurements: total length 3.08; carapace 1.03 length, 1.28 width; abdomen 1.92 length, 1.28 width. Legs I missing, II 22.13 (6.09, 0.40, 5.90, 7.69, 2.05), III 14.96 (4.49, 0.40, 3.85, 4.81, 1.41), IV 14.57 (4.42, 0.40, 3.85, 4.87, 1.03).

Variation. Carapace: males 1.09–1.50 length, 1.28–1.70 width; females 1.03–1.28 length, 1.27–1.28 width. Distribution. Known only from the type locality ( Fig. 22View FIGURE 22).


Institute of Zoology, Chinese Academy of Sciences