Leclercera undulatus, Wang, Chunxia & Li, Shuqiang, 2013

Wang, Chunxia & Li, Shuqiang, 2013, Four new species of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southwest China, Zootaxa 3718 (1), pp. 39-57 : 40-49

Leclercera undulatus sp. nov.

Figs 5–8 , 15

Etymology. The specific name is from the Latin word “ undulatus ” which means “wavy”, referring to the wave-shaped spermathecae of the female; adjective.

Diagnosis. This new species can be easily recognized from other species of the genus Leclercera by the waveshaped spermathecae ( Figs 6 D, 8C); the presence of two digitiform protrusions distally on the tibia ( Figs 5 C, 7B) and the presence of one protrusion prolaterally on the bulb in the male ( Figs 5 A, 8B).

Description. Male (holotype). Prosoma, suborbicular, brown, with dark streaks radiating from the fovea. Eyes six. Chelicera ( Fig. 7 C) brown, promargin with lamina and one tooth, retromargin with two small teeth, the posterior surface of fang provided with 24 small denticles. Labium brown with two light rounded area basally. Sternum brown. Legs yellow. Opisthosoma with a series of brown vertical bars dorsally. Male palp ( Figs 5 A–C, 7A–B, 8A–B): femur with five long microsetae retrolaterally; tibia with two trichobothria dorsally and two digitiformed protrusions distally; bulb pale yellow, complicated with one protrusion prolaterally, conductor dark, strip-shaped, connected with embolus. Measurements: total length 2.50 ( Fig. 6 A); prosoma 1.00 long, 1.20 wide, opisthosoma 1.50 long, 0.75 wide, clypeus 0.37 high; palp 1.66 (0.62, 0.23, 0.56, -, 0.25), bulb 0.40 long; legs I 14.12 (4.49, 0.33, 3.85, 3.85, 1.60), II 10.57 (3.20, 0.33, 3.20, 2.56, 1.28), III and IV missing.

Female (one of the paratypes). Similar to male in coloration and general features. Genital area ( Fig. 7 D) simple, only with numerous setae on epigynal plate. Internal genitalia ( Figs 6 D, 8C) with a wave-shaped spermatheca. Measurements: total length 2.50 ( Fig. 6 B–C), prosoma 1.00 long, 1.00 wide, opisthosoma 1.75 long, 1.20 wide; Palp 1.82 (0.69, 0.19, 0.44, -, 0.50); legs I 15.51 (4.10, 0.32, 5.00, 4.17, 1.92), II 12.99 (3.46, 0.32, 4.10, 3.50, 1.60), III 9.54 (2.95, 0.32, 2.56, 2.30, 1.41), IV 13.17 (3.50, 0.32, 4.10, 3.46, 1.79).

Habitat. The spiders were found hanging upside down in fine sheet-webs among detritus in a cave.

Distribution. Known only from the type locality ( Fig. 15 ).

Figures

FIGURE 5. Leclercera undulatus sp. nov., holotype male. A. Palpal bulb, prolateral view; B. Palp, prolateral view; C. Palp, retrolateral view.

FIGURE 6. Leclercera undulatus sp. nov., holotype male and paratype female. A. Male habitus, dorsal view; B. Female habitus, dorsal view; C. Female habitus, ventral view; D. Female genitalia, dorsal view.

FIGURE 7. Leclercera undulatus sp. nov., holotype male and paratype female. A. Palpal bulb, ventral view; B. Palp, retrolateral view; C. Male chelicera, posterior view; D. Female genital area, ventral view. Scale bars: A 0.05 mm; B – D 0.1 mm.

FIGURE 8. Leclercera undulatus sp. nov., holotype male and paratype female. A. Palp, prolateral view; B. Palpal bulb, prolateral view; C. Female genitalia, dorsal view. Scale bars: A 0.10 mm; B – C 0.05 mm.

FIGURE 15. Locality records for four new species of the subfamily Psilodercinae from Southwest China.