Pteroneta ultramarina (Ono, 1989)

Zhang, Jianshuang, Yu, Hao & Li, Shuqiang, 2021, On the clubionid spiders (Araneae, Clubionidae) from Xishuangbanna, China, with descriptions of two new genera and seven new species, ZooKeys 1062, pp. 73-122 : 73

Pteroneta ultramarina (Ono, 1989)

Figs 17 , 18

Clubiona ultramarina Ono, 1989: 156, figs 1-7 (♂♀).

Pteroneta ultramarina : Deeleman-Reinhold 2001: 145 (transferred to Pteroneta ); Ono and Hayashi 2009: 546, figs 7-10, 169-171 (♂♀).

Material examined.

China: Yunnan: Xishuangbanna: Mengla County: 1♂ 1♀ (YHCLU0136-137), Nanshahe Village , seasonal rainforest (21°36.200'N, 101°34.385'E, 820 m), 14 June 2012, Q. Zhao leg. ; 1♂ 2♀, Bubang Village (21°36.634'N, 101°34.900'E, 820 m), 10 June 2012, Q. Zhao leg. ; Menglun Town: Menglun Nature Reserve: 1♂, Lvshilin Forest Park , limestone tropical seasonal rain forest (21°54.617'N, 101°16.843'E, 730 m), 7 August 2011, G. Zheng leg.

Diagnosis.

Males of P. ultramarina resemble those of P. baiteta Versteirt, Deeleman-Reinhold & Baert, 2008 (Versteirt et al. 2008: 312, fig. 7a, b) in having a similarly shaped retrolateral tibial apophysis and claw-like embolus but differ by the conductor with a straight tip (Fig. 17A-E ) (vs. semi-circular tip) and the dorsal surface of the chelicerae with relatively few, short setae (<10) (Fig. 18E ) (vs. 18 short setae). Females of P. ultramarina are similar to those of P. tertia Deeleman-Reinhold, 2001. The epigyne of these two species is very similar and almost indistinguishable, but the species differ in the number and arrangement of cheliceral teeth (three promarginal and two retromarginal in P. ultramarina vs. six teeth on both margins in P. tertia ) and by the patterns on the body (the carapace and sternum are marked with lazulite-coloured blue spots in P. ultramarina (Fig. 18G, H ) (vs. blue spots lacking in P. tertia ).

Description.

See Ono (1989). Male palp as in Fig. 17A-E , epigyne as in Fig. 18A-D , habitus as in Fig. 18E-H .

Distribution.

Japan (Ryukyu Is.), China (Yunnan Province, new record). The new record presented here extends the known range of this species by ~ 2700 km from the type locality (Ryukyu Is.) to the southwest (Xishuangbanna).

Figures

Figure 17. Male palp of Pteroneta ultramarina A prolateral view B retrolateral view C bulb, prolateral view D bulb, ventral view E bulb, retrolateral view. Abbreviations: C = conductor; E = embolus; EB = embolic base; RTA = retrolateral tibial apophysis. Scale bars: 0.10 mm (equal for A, B, equal for C-E).

Figure 18. Pteroneta ultramarina, epigyne (A-D), male habitus (E, F) and female habitus (G, H) A intact, ventral view B cleared, ventral view C cleared, dorsal view D cleared, dorsal view E dorsal view F lateral view G dorsal view H ventral view. Abbreviations: BS = bursa; CD = copulatory duct; CO = copulatory opening; FD = fertilization duct; SP = spermatheca. Scale bars: 0.10 mm (equal for A-D); 1 mm (equal for E, F, equal for G, H).