http://www.collembola.org/key/pluturus.htm - Last updated on 2024.10.31 by Frans Janssens
Checklist of the Collembola: Key to the species of Plutomurus

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.

Rafael Jordana, Department of Zoology and Ecology, University of Navarra, 31080, Pamplona, Navarra, Spain
Enrique Baquero, Department of Zoology and Ecology, University of Navarra, 31080, Pamplona, Navarra, Spain
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).   Ocelli 6 + 6................................................ 2
        Ocelli at most 5 + 5....................................... 14
 
2(1).   Mucro with subapical denticles.............................. 3
        Mucro without subapical denticles........................... 7
 
3(2).   Mucro with one subapical denticle........................... 4
        Mucro with two to four subapical denticles.................. 6
 
4(3).   Mucro with 1 basal tooth.................................... 5
        Mucro with 2 basal teeth........................... carpaticus
 
5(4).   Dental spine formula 4-7 I - II + 3-4 I 3-6 I; unguis with 1-2
          internal teeth.............................. brevimucronatus
        Dental spine formula 5-8 + 5 I 2 I; unguis with 3 internal
          teeth............................................. edaphicus
 
6(3).   Unguiculus with 1 tooth............................... wilkeyi
        Unguiculus without tooth.................... vigintiferispinus
 
7(2).   Tenent hair clavate......................................... 8
        Tenent hair pointed........................................ 13
 
8(7).   Unguiculus with internal tooth.............................. 9
        Unguiculus without internal tooth................... birsteini
 
9(8).   Dental spine formula 5 I + 9 I.................... unidentatus
        Dental spine formula not 5 I + 9 I......................... 10
 
10(9).  Spine-like chaetae on tibiotarsi: 001, 012 or 002.......... 11
        Spine-like chaetae on tibiotarsi: 011................ borealis
 
11(10). Mucro with 1 basal tooth........................... belozerovi
        Mucro with 2 basal teeth................................... 12
 
12(11). Dental spine formula 4-5 I + 6 I 3 I; third tibiotarsus with
          one spine-like chaeta......................... jeleznovodski
        Dental spine formula 6-9 + 9-13 I; third tibiotarsus with two
          spine-like chaetae............................. baschkiricus
 
13(7).  Prelabral chaetae 2 + 2; third tibiotarsus with two spine-like
          chaetae.......................................... abchasicus
        Prelabral chaetae 3 + 3; third tibiotarsus with one spine-like
          chaeta.......................................... kelasuricus
 
14(1).  Ocelli 4 + 4 or 5 + 5...................................... 15
        Ocelli at most 3 + 3....................................... 16
 
15(14). Mucro with 3 or 4 subapical denticles............ riugadoensis
        Mucro without subapical denticles...................... sorosi
 
16(14). Ocelli 3 + 3............................................. leei
        Ocelli at most 2 + 2....................................... 17
 
17(16). Ocelli 2 + 2.................................... diversispinus
        Ocelli absent.............................................. 18
 
18(17). Prelabral chaetae 2 + 2 or 3 + 3........................... 19
        Prelabral chaetae 4 + 4........................... marmorarius
 
19(18). Prelabral chaetae 2 + 2.................................... 20
        Prelabral chaetae 3 + 3.................................... 22
 
20(19). Mucro with subapical denticles............................. 21
        Mucro without subapical denticles.................. yamatensis
 
21(20). Mucro with 1 subapical denticle................... suzukaensis
        Mucro with 4 subapical denticles................. californicus
 
22(19). Mucro with subapical denticles............................. 23
        Mucro without subapical denticles.......................... 25
 
23(22). Unguis with 1 or 2 internal teeth.......................... 24
        Unguis with 3 or 4 internal teeth..................... grahami
 
24(23). Dental spine formula 8-12 + 1-5 I 1 I 1 I 1-2 I........... gul
        Dental spine formula 8 + 3 I 1-2 I 2 I.............. ehimensis
 
25(22). Unguiculus with internal tooth............................. 26
        Unguiculus without internal tooth................... kawasawai
 
26(25). Dental spine formula 7-9 I + I 2-3 I 2-3 I 2 I................
           .......................................... ortobalaganensis
        Dental spine formula 9 3 + I 1 I 1 I 2 I............ iwatensis

Endnotes

1 In the dental spine formula "I" denotes "large spine".

References