http://www.collembola.org/key/tetrinae.htm - Last updated on 2017.08.31 by Frans Janssens
Checklist of the Collembola: Key to the genera of Tetrodontophorinae

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.

Romuald J. Pomorski, Zoological Institute, Wroclaw University, Sienkiewicza 21, Pl-50-335 Wroclaw, Poland
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). Body shape cylindrical; postantennal organ absent...............
         .............................................. Anodontophorus
      Body shape distinctly flattened dorsoventrally with a sharp
        lateral edge; postantennal organ present.................... 2
 
2(1). Anal and genital segment distinct; fourth antennal segment with
        6 small apical papillae; anotergite without lateral anal
        spines.......................................... Homaloproctus
      Anal and genital segment fused; fourth antennal segment without
        apical papillae; anotergite with small lateral anal spines....
         ............................................. Tetrodontophora

Differential diagnoses

Anodontophorus
Body shape cylindrical. Postantennal organ absent.

Homaloproctus
Anal and genital segment distinct. Anotergite without lateral anal spines. Body shape distinctly flattened dorsoventrally with a sharp lateral edge. Fourth antennal segment with 6 small apical papillae. Postantennal organ present.

Tetrodontophora
Anal and genital segment fused. Anotergite with small lateral anal spines. Body shape distinctly flattened dorsoventrally with a sharp lateral edge. Fourth antennal segment without apical papillae. Postantennal organ present.


References