Thaiderces chujiao Li & Chang

Chang, Wan-Jin & Li, Shuqiang, 2019, Fourteen new species of the spider genus Thaiderces from Southeast Asia (Araneae, Psilodercidae), ZooKeys 869, pp. 103-146 : 103

publication ID	https://dx.doi.org/10.3897/zookeys.869.35546
publication LSID	lsid:zoobank.org:pub:AFF62E38-4FD4-4E5D-9D92-3EC97E4A4368
persistent identifier	https://treatment.plazi.org/id/3BA4354E-FE20-4DAE-850F-6082A9443508
taxon LSID	lsid:zoobank.org:act:3BA4354E-FE20-4DAE-850F-6082A9443508
treatment provided by	ZooKeys by Pensoft
scientific name	Thaiderces chujiao Li & Chang
status	sp. nov.

Treatment

Thaiderces chujiao Li & Chang View in CoL sp. nov. Figs 22 View Figure 22 , 28A View Figure 28 , 29 View Figure 29

Types.

Holotype: ♀ (IZCAS), Thailand, Chiangmai Province, Mae Cham District, Jeep track, 18°31.677'N, 98°29.963'E, 1649 m, 14.X.2014, Zhao H., Li Y., Chen Z.

Etymology.

The species name is a noun in apposition derived from the Chinese pinyin chùjiăo (antenna) and refers to the structure of the spermathecae that resembles two pairs of clavate antennae ( Fig. 22A View Figure 22 ).

Diagnosis.

Thaiderces chujiao sp. nov. can be distinguished from other species by the two pairs of tubular spermathecae resembling two pairs of clavate antennae, lateral pair half the length of the median pair ( Fig. 22A View Figure 22 ) (vs. circular spermathecae with with ovoid duct in T. haima sp. nov.).

Description.

Female (holotype). Total length 1.62; carapace 0.60 long, 0.70 wide; abdomen 1.02 long, 0.60 wide. Carapace round and brown, with three longitudinal dark brown bands, lateral bands three times wider than the median band. Chelicerae brown ( Fig. 28A View Figure 28 ). Clypeus dark brown medially and light brown laterally. Endites brown. Labium dark brown. Sternum with dark brown pattern. Abdomen elongated, with dark brown pattern ( Fig. 22C View Figure 22 ), anteroventrally with semi-circular light brown epigastric area medially, posterior part with pair of light brown vertical dotted lines laterally and a V-shaped mark medially ( Fig. 22D View Figure 22 ). Legs uniformly brown; measurements: I 4.84 (1.25, 0.31, 1.41, 1.09, 0.78), II 3.87 (1.00. 0.20, 1.10. 0.94, 0.63), III 3.31 (0.88, 0.25, 0.88, 0.80, 0.50), IV 4.46 (1.09, 0.25, 1.25, 1.12, 0.75). Endogyne: two pairs of tubular spermathecae, lateral pair half the length of the median pair, median pair curved and opposing one another, half the width of lateral pair ( Fig. 22A View Figure 22 ).

Male. Unknown.

Distribution.

Known only from the type locality ( Fig. 29 View Figure 29 ).