http://www.collembola.org/key/onycidae.htm - Last updated on 2017.07.31 by Frans Janssens
Checklist of the Collembola: Key to the subfamilies of Onychiuridae

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.

Kenneth A. Christiansen, Department of Biology, Grinnell College, PO Box V3, Grinnell, IA 50112-0806, USA
Frans Janssens, Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium

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). Furcula absent or reduced to knobs; pigment absent or weakly
        developed........................................ Onychiurinae
      Furcula well developed; pigment present....................... 2
 
2(1). Head of maxilla elongate (fig.1) without teeth bearing part.....
         ........................................... Lophognathellinae
      Head of maxilla not elongate with an ectolateral part bearing
        teeth...................................... Tetrodontophorinae

Fig.1.
 


Differential diagnoses

Lophognathellinae
Furcula well developed. Head of maxilla elongate (fig.1) without teeth bearing part. Pigment present.

Onychiurinae
Furcula absent or reduced to knobs. Pigment absent or weakly developed.

Tetrodontophorinae
Furcula well developed. Head of maxilla not elongate with an ectolateral part bearing teeth. Pigment present.


References