Yaginumaella lushuiensis, Liu, Wang, Yang, Su-Fang & Peng, Xian-Jin, 2016

Liu, Wang, Yang, Su-Fang & Peng, Xian-Jin, 2016, Two new species of Yaginumaella, Proszynski 1976 from Yunnan, China (Araneae, Salticidae), ZooKeys 620, pp. 57-66 : 58-59

Taxon classification Animalia Araneae Salticidae

Yaginumaella lushuiensis sp. n. Figs 1-3, 4-6, 7-9, 10-12

Type material.

Holotype: ♂, China: Yunnan: Lushui County: Pianma Township, 25.99363°N, 98.66651°E, 2470 m, 14 May 2005, C. Griswold. Paratypes: 1♂,4♀, the same data as holotype.

Etymology.

The specific name refers to the type locality, Lushui County.

Diagnosis.

The male of the new species can be distinguished from all known congeneric species in ventral view of palpal organ by: embolus short, spatuliform; genital bulb without distinct posterior lobe; tibial apophysis extends to the top of genital bulb; embolus about 1/2 length of genital bulb. The female of the new species can be distinguished from all known congeneric species by: epigynum about circular; copulatory openings transverse.

Description.

Male (holotype): Total length 4.60. Cephalothorax 2.15 long, 1.75 wide. Abdomen 2.35 long, 1.50 wide. Clypeus height 0.10. Carapace black-brown, with black margin, basal area of each eye, anterior and lateral margins of ocular area black. Thoracic region with two longitudinal dark bands. Marginal areas of carapace, anterior and lateral margins of ocular area densely covered with white hair; ocular area with thick dark brown hair; fovea short, longitudinal and black; cervical groove indistinct, radial groove dark brown. Sternum oval, covered with short brown hair, central area bulged, light yellow with gray edge. Clypeus narrow, height less than the radius of AME, light brown, promargin with white hair. Chelicerae dark brown, with brown hair, two promarginal and one retromarginal teeth (Fig. 6). Labium brown with brown hair, terminal area lightly colored. Palp and legs brown, legs with clear dark brown annuli. Eye sizes and interdistances: AER 1.50, PER 1.40, ALE 0.25, PLE 0.15, AME 0.50, EFL1.00. Measurements of legs: I 5.00 (1.50, 2.00, 1.00, 0.50), II 3.75 (1.00, 1.50, 0.75, 0.50), III 4.50 (1.50, 1.50, 1.00, 0.50), IV 4.25 (1.25, 1.50, 1.00, 0.50). Leg formula: 1342. Abdomen long oval, black to yellow brown, cardiac pattern long bar-shaped, muscular impressions clearly visible, posterior area of abdomen with six arc-shaped darker bands. Abdominal ventral: anterior area light brown, median area with one black longitudinal stripe, lateral areas with scattered grayish-black patches. Spinnerets brown.

Male palp (Figs 2-3, 4-5): tibia longer than wide in ventral view, with several long prolateral macrosetae in retrolateral view. Genital bulb with membrane structure. Embolus slender and about 1/2 length of genital bulb, originates from the position of 10:00 o’clock, its tip reaches to the position of 13:00 o’clock in ventral view. Bulb squat, median portion widest. Sperm ducts obvious, its diameter about 1/6 width of bulb.

Female: Total length 5.00. Cephalothorax 2.40 long, 2.00 wide. Abdomen 2.60 long, 2.10 wide. Clypeus 0.15 high. Eye sizes and interdistances: AME 0.50, ALE 0.25, PLE 0.15, AER 1.60, PER 1.40, EL1.00. Legs yellow. Leg spinnation the same as male. Measurements of legs: I 4.85 (1.50, 1.85, 0.75, 0.75), II 3.85 (1.30, 1.30, 0.75, 0.50), III 4.75 (1.75, 1.3, 1.00, 0.75), IV 4.5 (1.25, 1.75, 1.00, 0.50). Leg formula: 1342. Other morphological characteristics the same as male except more pale in color.

Epigyne (Figs 8-9, 10-11) longer than wide, with two distinct anterior hoods. copulatory openings almost u-shaped, far away from the hoods. Copulatory ducts indistinct. Spermathecae big, squat, close to each other.

Variation.

The male length 4.60-4.80 (n = 2) and the female length 4.80-5.60 (n = 4).

Distribution.

China (Yunnan).