Calapnita longa, Yao, Zhiyuan & Li, Shuqiang, 2013

Yao, Zhiyuan & Li, Shuqiang, 2013, New and little known pholcid spiders (Araneae: Pholcidae) from Laos, Zootaxa 3709 (1), pp. 1-51 : 27-28

Calapnita longa sp. nov.

Figs 25–27 , 41

Type material. Holotype: Male ( IZCAS), underside of leaves [15°11.679′N, 106°06.085′E, alt. 839 m], Tad Etu, Champasak, Laos, 19 November 2012, leg. Z. Yao (Yao-LA 029–030).

Etymology. The specific name is from Latin longus (long), in reference to the long opisthosoma; adjective.

Diagnosis. The species resembles C. saluang ( Huber 2011: 48, figs 43–44 and 153–169), but can be distinguished by different shape of distal apophyses of male chelicerae ( Figs 26 A and 27C), presence of small distal apophyses on curving ventral apophysis of pedipalpal trochanter ( Fig. 26 B) and different shape of distal sclerites of procursus ( Figs 25 A–D and 27A–B).

Description. Male (holotype): Total length 5.99 (6.15 with clypeus), prosoma 0.84 long, 0.81 wide, opisthosoma 5.15 long, 0.36 wide. Leg I: 35.81 (8.72 + 0.36 + 7.82 + 16.03 + 2.88), leg II lost, leg III: 16.05 (4.81 + 0.30 + 3.85 + 6.15 + 0.94), leg IV: 27.00 (7.50 + 0.31 + 6.60 + 11.28 + 1.31); tibia I L/d: 112. Habitus as in Figs 26 C–E. Dorsal shield of prosoma and sternum yellowish, without marks. Legs yellowish, but dark brown on femora (distally), patellae and tibia-metatarsus joints, without darker rings. Opisthosoma yellowish, with spots dorsally and laterally. Distance PME-PME 0.26, diameter PME 0.11, distance PME-ALE 0.03, AME absent.

Ocular area not elevated; each eye triad on top of a relatively shorter eye-stalk directed towards laterally. Thoracic furrow absent. Sternum longer than wide (0.63/0.59). Chelicerae as in Figs 26 A and 27C, with a pair of black distal apophyses provided with an angular proximal apophysis each, and a pair of unsclerotized lateral apophyses distally. Pedipalpi as in Figs 25 A–B and 27A–B; trochanter with a curving ventral apophysis provided with small distal apophyses; femur with three distinctive proximal apophyses; procursus long but simple, only distal part more complex; bulb elongated; uncus sclerotized proximally but transparent distally; embolus weakly sclerotized, with some transparent projections distally. Retrolateral trichobothrium of tibia I at 2%; legs with few vertical hairs, without spines and curved hairs; pseudosegments not visible.

Variation: Unknown.

Female: Unknown.

Distribution. Known only from the type locality ( Fig. 41 ).

Figures

FIGURE 25. Calapnita longa sp. nov., male holotype. A – B. Pedipalpus (A. Prolateral view; B. Retrolateral view); C – D. Distal part of procursus (C. Prolateral view; D. Retrolateral view).

FIGURE 26. Calapnita longa sp. nov., male holotype. A. Chelicerae, frontal view; B. Trochanter of pedipalpus, ventral view; C – E. Habitus (C. Dorsal view; D. Ventral view; E. Lateral view).

FIGURE 27. Calapnita longa sp. nov., male holotype. A – B. Pedipalpus (A. Prolateral view; B. Retrolateral view); C. Chelicerae, frontal view. Scale bars: 0.20 (A – B), 0.10 (C).

FIGURE 41. Known distribution of new species of Pholcidae from Laos. 1. Belisana champasakensis sp. nov.; 2. B. crystallina sp. nov.; 3. B. gigantea sp. nov.; 4. B. khanensis sp. nov.; 5. B. lancea sp. nov.; 6. B. martensi sp. nov.; 7. B. tadetuensis sp. nov.; 8. B. xiangensis sp. nov.; 9. Calapnita longa sp. nov.; 10. Khorata circularis sp. nov.; 11. K. dupla sp. nov.; 12. Pholcus arcuatilis sp. nov.; 13. P. sublaksao sp. nov.; 14. Spermophora falcata sp. nov.