Key to the genus Niglarobia (females) (after Fain et al. 2000 with modifications)

1. Setae vs’I present........................................................................................................... 2

­ Setae vs’I absent............................................................................................................ 6

2. Claws of legs III and IV with basal angle ..................................................................... 3

­ Claws of legs III and IV without basal angle ................................................................ 5

3. Setae l4 no more than 3 times longer than d4 ............ N. trouessarti (Oudemans, 1904)

­ Setae l4 more than 6 times longer than d4 .................................................................... 4

4. Setae l1 approximately 1.3 times shorter than l2 ................... N. ereuneti Kethley, 1970

­ Setae l1 and l2 subequal .................................................... N. helleri (Oudemans, 1904)

5. Hysterosomal shield present and fused to pygidial shield. Length ratio of setae g:pg1:pg2 1:5:3.8 ........................................................................... N. cursoriae sp. nov.

­ Hysterosomal shield absent. Length ratio of setae g:pg1:pg2 1:3:2 ............................... ................................................................ N. rhinoptili Fain, Bochkov et Mironov, 2000

6. Dorsal setae of idiosoma serrate ..................... N. skorackii Bochkov et Galloway, 2004

­ Dorsal setae of idiosoma smooth .................... N. calidridis Bochkov et Mironov, 1998