http://www.collembola.org/key/collbola.htm - Last updated on 2017.10.31 by Frans Janssens
Checklist of the Collembola: Key to the ordines of Collembola

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

Preamble

This experimental and macrophotographically illustrated pictorial key is made in joint venture with the BugGuide project of the Iowa State University, USA. The key is designed to be used in the field, employing a magnifying glass of at most 5 times, while observing the general habitus of alive specimens.
All photographic illustrations are contributed by and courtesy of BugGuide macrophotographers.

Version history

2010.01.21: Scott Justis: Entomobryomorpha, Poduromorpha, Symphypleona.

Acknowledgements

The authors wish to thank :
Scott Justis, contributing macrophotographer;
Vassili Belov, for his cooperation in setting up the interface with BugGuide.

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). Abdominal tergal segmentation distinct (fig.1a); trunk elongate
        (fig.2a).................................................... 2
      Abdominal tergal segmentation indistinct (fig.1b); trunk
        subglobular (fig.2b)........................................ 3
 

Fig.1.
 

Fig.2.
 
2(1). Prothoracic tergum distinct (fig.3a)............... Poduromorpha
      Prothoracic tergum indistinct (fig.3b)......... Entomobryomorpha
 

Fig.3.
 
3(1). Antennae as long as or longer than head (fig.4b)... Symphypleona
      Antennae shorter than head (fig.4a)................. Neelipleona

Fig.4.
 


Differential diagnoses

Entomobryomorpha
Abdominal tergal segmentation distinct (fig.1a). Prothoracic tergum indistinct (fig.3b). Trunk elongate (fig.2a).

Neelipleona
Abdominal tergal segmentation indistinct (fig.1b). Antennae shorter than head (fig.4a). Trunk subglobular (fig.2b).

Poduromorpha
Abdominal tergal segmentation distinct (fig.1a). Prothoracic tergum distinct (fig.3a). Trunk elongate (fig.2a).

Symphypleona
Abdominal tergal segmentation indistinct (fig.1b). Antennae as long as or longer than head (fig.4b). Trunk subglobular (fig.2b).


References