Key to females of Geckobiella Hirst sensu nov.

1. With hypertrichous idiosoma........................................................................... 2

-. With oligotrichous idiosoma............................................................................ 3

2. Setae ps1–3 sparsely barbed or peripectinate......................................................... G. texana

-. Setae ps1–2 spatulate spinose and club-like and ps3 sparsely barbed...................................... G. harrisi

3. Prodorsal shield shaped as an inverted isosceles triangle...................................................... 4

-. Prodorsal shield shaped as an inverted pentagon, ovoid, inverted pear-shaped or absent............................. 5

4. Anterior margin of prodorsal shield straight (Fig. 2 A).......................................... G. trombidiiformis

-. Anterior margin of prodorsal shield with a notch (Fig. 2 B)............................................. G. p el aez i

5. Prodorsal shield shaped as an inverted pentagon............................................................ 6

-. Prodorsal shield ovoid, shaped as an inverted pear or absent.................................................. 7

6. With anterior sides almost parallel (Fig. 2 H)......................................... Geckobiella donnae sp. nov.

-. With anterior sides sharply converging anteriorly (Fig. 2 C).............................................. G. boneti

7. Prodorsal shield ovoid (Fig. 2 D)................................................................... G. bakeri

-. Prodorsal shield shaped as inverted pear or absent.......................................................... 8

8. Prodorsal shield absent.......................................................................... G. st a m i i

-. Prodorsal shield shaped as an inverted pear................................................................ 9

9. Prodorsal shield with one pair of setae (sci) (Fig. 2 E)............................................... G. pyriformis

-. Prodorsal shield with two pairs of setae (vi and sci)........................................................ 10

10. Dorsal idiosomal setal pair h1 peripectinate, prodorsal shield clearly wider than long (length ca. 198 µm x width 226 µm) (Fig. 2 G), and solenidion ω 1 of tarsus I long (ca. 39 µm)..................................................... G. diolii

-. Dorsal idiosomal setal pair h1 spinose spatulate (club-like), prodorsal shield almost as long as wide (length ca. 181 µm x width 189 µm) (Fig. 2 F), and solenidion ω 1 of tarsus I shorter (ca. 27 µm)...................................... G. javieri