http://www.collembola.org/key/dicrella.htm - Last updated on 2014.02.28 by Frans Janssens
Checklist of the Collembola: Key to the species of Dicranorchesella

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). Body with eyes and pigment; dental spines present; tibiotarsus
        with setae lisas at external side; unguiculus with tooth muy
        pequeno..................................................... 2
      Body without eyes and pigment; dental spines absent; tibiotarsus
        without setae lisas at external side; unguiculus with large
        tooth.................................................... fina
 
2(1). Dens with 1 row of spines; scales estrechas fusiformes........ 3
      Dens with 2 rows of spines; scales mas anchas, with apex
        ligeramente agudo..................................... occulta
 
3(2). Scales on head absent.................................. seminuda
      Scales on head present................................... boneti

Differential diagnoses

boneti
Body with eyes and pigment. Dens with 1 row of spines. Dental spines present. Scales estrechas fusiformes. Scales on head present. Tibiotarsus with setae lisas at external side. Unguiculus with tooth muy pequeno.

fina
Body without eyes and pigment. Dental spines absent. Tibiotarsus without setae lisas at external side. Unguiculus with large tooth.

occulta
Body with eyes and pigment. Dens with 2 rows of spines. Dental spines present. Scales mas anchas, with apex ligeramente agudo. Tibiotarsus with setae lisas at external side. Unguiculus with tooth muy pequeno.

seminuda
Body with eyes and pigment. Dens with 1 row of spines. Dental spines present. Scales estrechas fusiformes. Scales on head absent. Tibiotarsus with setae lisas at external side. Unguiculus with tooth muy pequeno.

References