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

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.

György Traser, University Sopron, Department for Forest Protection, P.O.B. 132, H-9401 Sopron, Hungary
Jean-Marc Thibaud, Laboratoire d'Entomologie, Museum National d'Histoire Naturelle, UPRES A 8043, F-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). Sense organ of third antennal segment with 2 guard sensilla.....
         ...................................................... loksai
      Sense organ of third antennal segment with 3 guard sensilla... 2
 
2(1). Sixth abdominal segment with 6 lateral anal spines............ 3
      Sixth abdominal segment with 6 or more lateral and centro-dorsal
        anal spines................................................. 4
 
3(2). Sternite fourth abdominal segment unpair seta ax absent;
        sternite second abdominal segment unpair seta ax absent;
        tergite fourth abdominal segment seta m3 present..............
         .................................................... duboscqi 1
      Sternite fourth abdominal segment unpair seta ax present;
        sternite second abdominal segment unpair seta ax present;
        tergite fourth abdominal segment seta m3 absent...............
         .................................................... ariegica 2
 
4(2). Sixth abdominal segment with 6 anal spines.................... 5
      Sixth abdominal segment with 7 to 10 anal spines.............. 6
 
5(4). Postantennal organ with 10 to 15 vesicles............. hexaspina
      Postantennal organ with 26 vesicles..................... howdeni
 
6(4). Sixth abdominal segment with 7 anal spines.............. dungeri
      Sixth abdominal segment with 8 to 10 anal spines.............. 7
 
7(6). Sixth abdominal segment with 8 anal spines............... adulta 3
      Sixth abdominal segment with 9 to 10 anal spines.............. 8
 
8(7). Sixth abdominal segment with 10 anal spines; postantennal organ
        with 11 vesicles..................................... moravica
      Sixth abdominal segment with 9 anal spines; postantennal organ
        with 10 to 12 vesicles...................................... 9
 
9(8). Tergite fourth abdominal segment with 1 + 1 lateral pseudocelli
        after seta p4; tergite fourth abdominal segment with seta m6
        subequal to seta p5............................... navarrensis 5
      Tergite fourth abdominal segment without lateral pseudocelli;
        tergite fourth abdominal segment with seta m6 much longer than
        seta p5............................................ novemspina 4

Endnotes

1 As N. dubosqi(sic) dubosqi(sic).

2 As N. dubosqi(sic) ariegica.

3 As N. adula(sic).

4 As N. novemspina novemspina.

5 As N. novemspina navarrensis.


Differential diagnoses

adulta 3
Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 7 to 10 anal spines. Sixth abdominal segment with 8 to 10 anal spines. Sixth abdominal segment with 8 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines.

ariegica 2
Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 6 lateral anal spines. Sternite fourth abdominal segment unpair seta ax present. Sternite second abdominal segment unpair seta ax present. Tergite fourth abdominal segment seta m3 absent.

duboscqi 1
Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 6 lateral anal spines. Sternite fourth abdominal segment unpair seta ax absent. Sternite second abdominal segment unpair seta ax absent. Tergite fourth abdominal segment seta m3 present.

dungeri
Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 7 to 10 anal spines. Sixth abdominal segment with 7 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines.

hexaspina
Postantennal organ with 10 to 15 vesicles. Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 6 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines.

howdeni
Postantennal organ with 26 vesicles. Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 6 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines.

loksai
Sense organ of third antennal segment with 2 guard sensilla.

moravica
Postantennal organ with 11 vesicles. Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 7 to 10 anal spines. Sixth abdominal segment with 8 to 10 anal spines. Sixth abdominal segment with 9 to 10 anal spines. Sixth abdominal segment with 10 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines.

navarrensis 5
Postantennal organ with 10 to 12 vesicles. Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 7 to 10 anal spines. Sixth abdominal segment with 8 to 10 anal spines. Sixth abdominal segment with 9 to 10 anal spines. Sixth abdominal segment with 9 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines. Tergite fourth abdominal segment with 1 + 1 lateral pseudocelli after seta p4. Tergite fourth abdominal segment with seta m6 subequal to seta p5.

novemspina 4
Postantennal organ with 10 to 12 vesicles. Sense organ of third antennal segment with 3 guard sensilla. Sixth abdominal segment with 7 to 10 anal spines. Sixth abdominal segment with 8 to 10 anal spines. Sixth abdominal segment with 9 to 10 anal spines. Sixth abdominal segment with 9 anal spines. Sixth abdominal segment with 6 or more lateral and centro-dorsal anal spines. Tergite fourth abdominal segment without lateral pseudocelli. Tergite fourth abdominal segment with seta m6 much longer than seta p5.


References