Key to adult female Greenisca

1. Some sclerotized dorsal quinquelocular pores in large groups..................... G. brachypodii Borchsenius & Danzig

- Sclerotized dorsal quinquelocular pores not forming groups.................................................... 2

2. Outer dorsal spinose seta of anal lobes usually much shorter (less than half) of other two anal lobe setae; spine-like setae absent on margin of abdomen.................................................................................. 3

- All three dorsal anal lobe spinose setae subequal in length; spine-like setae present on margin of abdomen. G. oreophila sp.n.

3. Marginal spine-like setae on head present.................................................... G. placida (Green)

- Marginal spine-like setae on head absent................................................. G. gouxi (Balachowsky)