Euscorpiops

Di, Zhi-Yong, Wu, Ying-Liang, Cao, Zhi-Jian, Xiao, Heng & Li, Wen-Xin, 2010, A catalogue of the genus Euscorpiops Vachon, 1980 (Scorpiones: Euscorpiidae, Scorpiopinae) from China, with description of a new species, Zootaxa 2477, pp. 49-61 : 50-51

Key to species of the genus Euscorpiops from China

1- Number of trichobothria on external surface of pedipalp patella: 19 .......................................................................... 2

Number of trichobothria on external surface of pedipalp patella: 17–18 (5 eb, 1–2 esb, 2 em, 4 est, 5 et) .................. 4

2- Pattern of trichobothria on external surface of pedipalp patella: 19 (6 eb, 2 esb, 2 em, 4 est, 5 et) ....................... E. xui

Pattern of trichobothria on external surface of pedipalp patella: 19 (5 eb, 2 esb, 2 em, 5 est, 5 et) ............................... 3

3- Number of trichobothria on ventral surface of patella: 7; pectinal teeth number: 4–5.......................... E. kamengensis

Number of trichobothria on ventral surface of patella: 9; pectinal teeth number: 8........................................ E. novaki

4- Male pedipalp chela finers strongly scalloped: with a pronounced lobe on the movable finger and a corresponding notch on fixed finger (Figure 32).................................................................................................................................. 5

Male pedipalp chela fingers slightly scalloped or straight: lobe and corresponding notch reduced to absent............. 9

5- Chela length to width ratio higher than 2.9 ................................................................................................................. 6

Chela length to width ratio lower than 2.9.................................................................................................................... 8

6- Female pedipalp fingers nearly straight.................................................................................................... E. asthenurus

Female pedipalp fingers obviously scalloped ............................................................................................................... 7

7- Chela length to width ratio 2.9–3.2, carapace with dense, minute granules, total length over than 50 mm, coloration basically dark brown ....................................................................................................................................... E. validus

Chela length to width ratio about 3.5, carapace with sparse, nearly equal granules, total length less than 50 mm, coloration basically yellow brown to red brown .................................................................................................. E. karschi

8- Chela manus short, stout and rounded ........................................................................................................... E. vachoni

Chela manus flattened dorsoventrally......................................................................................................... E. puerensis

9- Number of trichobothria on ventral surface of patella: 11, chela length to carapace length ratio less than 1.4 ............. ........................................................................................................................................................................ E. shidian

Number of trichobothria on ventral surface of patella: 10, chela length to carapace length ratio higher than 1.9......... .......................................................................................................................................................................... E. yangi