Stachia

Smolis, Adrian, 2010, Two new species of Collembola: Friesea kariae sp. nov. (Neanuridae) and Stachia oregonensis sp. nov. (Odontellidae) from North America, Zootaxa 2515, pp. 36-44 : 43

Key to species of Stachia

1 Postantennal organ with four lobes ................................................................................................................................ ......................................................... S. tasgola Bernard, 2008 (described from USA, North Carolina and Michigan)

- Postantennal organ with three lobes ............................................................................................................................. 2

2 Unguiculus present on legs ......................................................................................................................................... 3

- Unguiculus absent on legs ............................................................................................ S . folsomi ( Arlé, 1968) ( Brasil)

3 Setae a1 present on Abd. I–IV ...................................................................................................................................... 4

- Setae a1 absent on Abd. I–IV........................................................................................................................................ 5

4 Postantennal organ with pointed lobes, femora with three setae each ........... S. minuta Folsom, 1932 ( USA, Hawaii)

- Postantennal organ with rounded lobes, femora with larger number of setae .......................... S. oregonensis sp. nov.

5 Dens and mucro separate, mucro with lamella .......................... S . xicoana (Palacios– Vargas & Najt, 1985) ( Mexico)

- Dens and mucro fused, mucro not lamellate............................................................ S. populosa ( Selga, 1963) ( Spain)