http://www.collembola.org/key/actaidae.htm - Last updated on 2009.04.30 by Frans Janssens
Checklist of the Collembola: Key to the genera of Actaletidae

This key is still under construction. Note that missing figures will be provided as soon as possible. Currently, the key is in the feasibility study phase to find out how to integrate in the checklist in a modular way a key that has been generated with DELTA.

Rationale

The rationale for taxa used and not used as well as subtaxonomic classification for some taxa is to be provided.

Key

Note that no distinction between subtaxa and taxa is made in the key. 

1(0). Dental spines absent; maxillae large and elongate; third
        tricobothrium on fourth abdominal segment absent; tracheal
        system present only in head......................... Actaletes
      Dental spines present; maxillae short and wide; third
        tricobothrium on fourth abdominal segment present; tracheal
        system present in head and body................. Spinactaletes

Differential diagnoses

Actaletes
Dental spines absent. Maxillae large and elongate. Third tricobothrium on fourth abdominal segment absent. Tracheal system present only in head.

Spinactaletes
Dental spines present. Maxillae short and wide. Third tricobothrium on fourth abdominal segment present. Tracheal system present in head and body.

References