Utivarachna tangi, Liu & Yin & Haddad & Xu & Ma, 2020

Liu, Keke, Yin, Haiqiang, Haddad, Charles R., Xu, Xiang & Ma, Zhining, 2020, Two new species of Utivarachna Kishida, 1940 from southern China, with an updated key to the Chinese species (Araneae: Trachelidae), Zootaxa 4803 (1), pp. 87-102 : 90

Key to the Utivarachna species from China

Males (males of U. gongshanensis , U. taiwanica and U. tangi sp. nov. unknown)

1 Tibiae, metatarsi and tarsi I, II with numerous conical ventral cusps (see Jin et al. 2015: 578, fig. 7C−E)............ U. gui – Tibiae, metatarsi and tarsi I, II without conical ventral cusps (see Jin et al. 2015: 571, fig. 1C, D)...................... 2

2 Tegulum strongly swollen proximally (see Zhao & Peng 2014: 580, fig. 1C, E)...........................… U. arcuata – Tegulum only slightly swollen or flattened proximally (see Jin et al. 2015: 572, fig. 2D)............................. 3

3 Tegulum mostly weakly pigmented (see Jin et al. 2015: 572, fig. 2A, C, D)................................... U. lata – Tegulum with distal part membranous and basal part heavily pigmented (see Jin et al. 2015: 576, fig. 5A, C, D).......... 4

4 Sperm duct extended and not reaching basal margin of tegulum (see Jin et al. 2015: 576, fig. 5C, D)............ U. fabaria – Sperm duct extended and reaching basal margin of tegulum ( Fig. 2 I−L)......................... U. subfabaria sp. nov.

Figures

FIGURE 2A–G. Utivarachna subfabaria sp. nov., male holotype, legs and palp. A. Tarsus, metatarsus and tibia I, retrolateral view. B. Patella and femur I, retrolateral view. C. Tarsus, metatarsus and tibia II, retrolateral view. D. Patella and femur II, retrolateral view. E. Tarsus and metatarsus III, retrolateral view. F. Tibia, patella and femur III, retrolateral view. G. Tarsus, metatarsus and tibia IV, retrolateral view. H. Patella and femur IV, retrolateral view. I. Palp, prolateral view. J. Same, ventral view. K. Same, retrolateral view. L. Same, dorsolateral view. Scale bars: A–H = 0.5 mm; I–L = 0.1 mm.