http://www.collembola.org/key/tritomur.htm - Last updated on 2010.11.27 by Frans Janssens
Checklist of the Collembola: Key to the species of Tritomurus

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.

Marko Lukic, Croatian Biospeleological Society, HR-10000 Zagreb, Croatia
Céline Houssin, Muséum National d'Histoire Naturelle, 75005 Paris, France
Louis Deharveng, Muséum National d'Histoire Naturelle, 75005 Paris, France
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). Claw not slender; macrochaetae on head present...... scutellatus
      Claw slender; macrochaetae on head absent..................... 2
 
2(1). Pigment absent; retinaculum with 5 chaetae; teeth on inner edge
        of claw present; tooth on empodium absent or inconspicuous....
         .................................................... falcifer
      Pigment present in traces; retinaculum with 1-2 chaetae; teeth
        on inner edge of claw absent; tooth on empodium present. veles

Differential diagnoses

falcifer
Claw slender. Macrochaetae on head absent. Pigment absent. Retinaculum with 5 chaetae. Teeth on inner edge of claw present. Tooth on empodium absent or inconspicuous.

scutellatus
Claw not slender. Macrochaetae on head present.

veles
Claw slender. Macrochaetae on head absent. Pigment present in traces. Retinaculum with 1–2 chaetae. Teeth on inner edge of claw absent. Tooth on empodium present.

References