Utivarachna

Zhao, Yi & Peng, Xian-Jin, 2014, Spiders of the genus Utivarachna from China (Araneae: Corinnidae), Zootaxa 3774 (6), pp. 578-588 : 579

Key to Utivarachna species from China

1. Male................................................................................................ 2

- Female.............................................................................................. 3

2. Bulb as long as wide ( Song, Zhu & Chen, 1999: fig. 258G)................................................ U. gui

- Bulb distinctly longer than wide ( Figs. 1 D, 2B)...................................................... U. arcuata

3. Copulatory opening located anteriorly ( Figs. 3 B, 4A, 7B, 8A).................................................. 4

- Copulatory opening located medially or posteriorly........................................................... 5

4. Connecting ducts located on the lateral areas of copulatory openings ( Figs. 3 C, 4B)......................... U. arcuata

- Connecting ducts located on the area between copulatory openings ( Figs. 7 C, 8B).................... U. gongshanensis

5. Copulatory opening located medially ( Figs. 5 B, 6A, Song, Zhu & Chen, 1999: fig. 256D)............................ 6

- Copulatory opening located posteriorly ( Song, Zhu & Chen, 1999: fig. 255Q).................................. U. gui

6. Spermathecae almost touching each other ( Figs. 5 C, 6B)............................................... U. fabaria

- Interdistance between spermathecae wider than 1.5 times their diameter ( Song, Zhu & Chen, 1999: fig. 256D)... U. taiwanica

Figures

FIGURE 1. Utivarachna arcuata sp. nov. A Male habitus, dorsal view. B – E Left palp. B Dorsal view. C Prolateral view. D Ventral view. E Retrolateral view. Scale bars: A, 1 mm; B – E: 0.1 mm.

FIGURE 3. Utivarachna arcuata sp. nov. A Female habitus, dorsal view. B Epigynum, ventral view. C Vulva, dorsal view. Scale bars: A, 1 mm; B, C: 0.1 mm.

FIGURE 5. Utivarachna fabaria sp. nov. A Female habitus, dorsal view. B Epigynum, ventral view. C Vulva, dorsal view. Scale bars: A, 1 mm; B, C: 0.1 mm.

FIGURE 7. Utivarachna gongshanensis sp. nov. A. Female habitus, dorsal view. B Epigynum, ventral view. C vulva, dorsal view. Scale bars: A, 1 mm; B, C: 0.1 mm.