http://www.collembola.org/key/palmnura.htm - Last updated on 2024.08.31 by Frans Janssens
Checklist of the Collembola: Key to the species of Palmanura

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.

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.
José Carlos Simón-Benito, Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Biologiá, Unidad de Zoologiá, 28049-Madrid, España
Hugo H. Mejía-Madrid, Laboratorio de Ecologia y Sistemática de Microartrópodos, Departamento de Biologia, Facultad de Ciensas, Universidad Nacional Autónoma de México, México D.F.
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).   Dorso-internal tubercles of first to third abdominal segment
          with one seta; dorso-internal tubercles of second thoracic
          segment and third thoracic segment with one seta;
          dorso-internal tubercles setal formula: 011/1111.......... 2
        Dorso-internal tubercles of first to third abdominal segment
          with two setae; dorso-internal tubercles of second thoracic
          segment and third thoracic segment with three setae;
          dorso-internal tubercles setal formula: 033/2221. primigenia
 

2(1).   Most body setae barbulate (fig.1a).......................... 3
        Most body setae palmate (fig.1b, c)......................... 4

Fig.1.
   
3(2).   Cephalic setae "A" absent; dorso-lateral + lateral cephalic
          group with 4 barbulate setae, one macrosetae and 4
          microsetae........................................... normae
        Cephalic setae "A" present; dorso-lateral + lateral cephalic
          group with 2 barbulate setae, 2 macrosetae and 8 microsetae.
           .................................................... sernai
 

4(2).   Ocular setae 1 + 1.......................................... 5
        Ocular setae 2 + 2.......................................... 7
 

5(4).   Cephalic setae "G" absent; dorso-lateral tubercle of first
          thoracic segment with one barbulate macroseta............. 6
        Cephalic setae "G" present; dorso-lateral tubercle of first
          thoracic segment with one palmate seta............ lacandona
 

6(5).   Between the sensorial setae of fourth abdominal segment four
          setae; lateral tubercle on second thoracic segment and third
          thoracic segment with one barbulate seta........... pascuali
        Between the sensorial setae of fourth abdominal segment two
          setae (fig.2); lateral tubercle on second thoracic segment
          and third thoracic segment with two barbulate setae (fig.3).
           .................................................. guilleni

Fig.2.
  

Fig.3.
   
7(4).   Cephalic setae are palmate macrosetae; dorso-lateral + lateral
          tubercle on fourth abdominal segment with more setae...... 8
        Cephalic setae are palmate microsetae; dorso-lateral + lateral
          tubercle on fourth abdominal segment with one macroseta.....
           ................................................... wilsoni
 

8(7).   Cephalic setae "G" absent................................... 9
        Cephalic setae "G" present................................. 11
 

9(8).   Cephalic seta "A" absent............................. matildae
        Cephalic seta "A" present palmate.......................... 10
 

10(9).  Dorso-lateral tubercle on second thoracic segment with one
          palmate seta; lateral tubercle on second thoracic segment
          and third thoracic segment with two palmate setae. quetzalae
        Dorso-lateral tubercle on second thoracic segment with two
          palmate setae; lateral tubercle on second thoracic segment
          and third thoracic segment with two barbulate setae (fig.4).
           ..................................................... goyai

Fig.4.
   
11(8).  Cephalic dorso-lateral tubercle with 2 barbulate setae........
           ................................................. hieronimi
        Cephalic dorso-lateral tubercle with 2 palmate setae....... 12
 

12(11). Cephalic lateral tubercle with only one macroseta;
          dorso-lateral tubercle of first thoracic segment with one
          macrosetae........................................ schusteri
        Cephalic lateral tubercle with two palmate setae;
          dorso-lateral tubercle of first thoracic segment with one
          palmate macroseta........................................ 13
 

13(12). Dorso-lateral tubercle of second thoracic segment with one
          palmate seta............................................. 14
        Dorso-lateral tubercle of second thoracic segment with two
          palmate setae............................................ 15
 

14(13). Dorso-lateral tubercle of third thoracic segment with one
          palmate seta.......................................... saham
        Dorso-lateral tubercle of third thoracic segment with two
          palmate setae..................................... mirabilis
 

15(13). Lateral tubercle of first to third abdominal segment with one
          palmate seta and one microseta........................... 16
        Lateral tubercle of first to third abdominal segment with two
          palmate setae and one macroseta....................... curta
 

16(15). Setae on fifth abdominal segment rather barbulate... colotlipa
        Setae on fifth abdominal segment thin, but palmate. lindquisti

References