http://www.collembola.org/key/furculan.htm - Last updated on 2009.09.30 by Frans Janssens
Checklist of the Collembola: Key to the species of Furculanurida

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.

Jean-Marc Thibaud, Laboratoire d'Entomologie, Museum National d'Histoire Naturelle, 75005 Paris, France
José G. Palacios-Vargas, Laboratorio de Ecologia y Sistemática de Microartrópodos, Departamento de Biologia, Facultad de Ciensas, Universidad Nacional Autónoma de México, México D.F.
Liliane H. Fernandes, Departamento de Entomologia, Museu Nacional/UFRJ, Quinta da Boa Vista, Sao Cristóvao, 20940-040, Rio de Janeiro, Brasil.
Maria C. de Mendonça, Departamento de Entomologia, Museu Nacional/UFRJ, Quinta da Boa Vista, Sao Cristóvao, 20940-040, Rio de Janeiro, Brasil.
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).   Eyes absent.......................................... africana
        Eyes present................................................ 2
 
2(1).   Eyes 2 + 2.......................................... furculata
        Eyes more than 2 + 2........................................ 3
 
3(2).   Eyes 4 + 4, 5 + 5 or 6 + 6.................................. 4
        Eyes 7 + 7.......................................... goeldiana
 
4(3).   Eyes 4 + 4........................................ arawakensis
        Eyes 5 + 5 or 6 + 6......................................... 5
 
5(4).   Eyes 5 + 5.................................................. 6
        Eyes 6 + 6.................................................. 8
 
6(5).   Mandible with four to six teeth............................. 7
        Mandible with two teeth................................. arlei
 
7(6).   Body deep blue; postantennal organ circular........ belemensis
        Body gray or gray-blue, except for part of head and thorax
          which are white; postantennal organ elliptical..............
           ............................................ grandcolasorum
 
8(5).   Mandible with four teeth.................................... 9
        Mandible with ten teeth....................... longisensillata
 
9(8).   Retinaculum with 2 + 2 teeth............................... 10
        Retinaculum with 3 + 3 teeth.......................... ashrafi
 
10(9).  Postantennal organ with 11 tubercles.......... duodecimoculata
        Postantennal organ with 6 tubercles................ nessimiani

Differential diagnoses

africana
Eyes absent.

arawakensis
Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 4 + 4.

arlei
Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 5 + 5. Mandible with two teeth.

ashrafi
Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 6 + 6. Mandible with four teeth. Retinaculum with 3 + 3 teeth.

belemensis
Body deep blue. Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 5 + 5. Mandible with four to six teeth. Postantennal organ circular.

duodecimoculata
Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 6 + 6. Mandible with four teeth. Postantennal organ with 11 tubercles. Retinaculum with 2 + 2 teeth.

furculata
Eyes present. Eyes 2 + 2.

goeldiana
Eyes present. Eyes more than 2 + 2. Eyes 7 + 7.

grandcolasorum
Body gray or gray-blue, except for part of head and thorax which are white. Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 5 + 5. Mandible with four to six teeth. Postantennal organ elliptical.

longisensillata
Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 6 + 6. Mandible with ten teeth.

nessimiani
Eyes present. Eyes more than 2 + 2. Eyes 4 + 4, 5 + 5 or 6 + 6. Eyes 5 + 5 or 6 + 6. Eyes 6 + 6. Mandible with four teeth. Postantennal organ with 6 tubercles. Retinaculum with 2 + 2 teeth.

References