http://www.collembola.org/key/palmnura.htm - Last updated on 2009.09.30 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.

María M. Vázquez, Laboratorio de Microartrópodos, Universidad de Quintana Roo, Quintana Roo 77019, México
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.
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.......... 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.........
           ................................................ primigenia
 
2(1).   Ocular patch with 1 ocular seta............................. 3
        Ocular patch with 2 ocular setae............................ 4
 
3(2).   Dorso-internal and dorso-external tubercles of third to sixth
          abdominal segment with elongate, cylindrical and barbulate
          setae.............................................. pascuali
        Dorso-internal and dorso-external tubercles of third to sixth
          abdominal segment with palmate setae.............. lacandona
 
4(2).   Ocular setae both similar in size and shape................. 5
        Ocular setae not similar in size and shape: the posterior seta
          palmate, the anterior seta crenulate and long..... schusteri
 
5(4).   Cephalic seta g absent...................................... 6
        Cephalic seta g present..................................... 7
 
6(5).   Cephalic seta "a" absent............................. matildae
        Cephalic seta "a" present........................... quetzalae
 
7(5).   Cephalic seta "a" absent............................... normae
        Cephalic seta "a" present well developed.................... 8
 
8(7).   Lateral tubercle on second thoracic segment and third thoracic
          segment with two large palmate setae and one smooth seta.. 9
        Lateral tubercle on second thoracic segment and third thoracic
          segment with two smooth and short setae............. wilsoni
 
9(8).   Lateral tubercle on first abdominal segment and second
          abdominal segment with one palmate or crenulate seta..... 10
        Lateral tubercle on first abdominal segment and second
          abdominal segment with two palmate or crenulate setae and
          one smooth seta.................................. lindquisti
 
10(9).  Dorso-lateral tubercles of second thoracic segment and third
          thoracic segment with one palmate seta and one sensorial
          seta.................................................. saham
        Dorso-lateral tubercles of second thoracic segment and third
          thoracic segment with two palmate setae and one sensorial
          seta..................................................... 11
 
11(10). Dorsal body setae clearly palmate short and wide; cephalic
          setae a, f, and ocm smaller than other setae.......... curta
        Dorsal body setae rather crenulate, thin and long; cephalic
          setae a, f, and ocm similar to other setae........ mirabilis

Differential diagnoses

curta
Cephalic seta "a" present well developed. Cephalic seta g present. Cephalic setae a, f, and ocm smaller than other setae. Dorsal body setae clearly palmate short and wide. 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-lateral tubercles of second thoracic segment and third thoracic segment with two palmate setae and one sensorial seta. Lateral tubercle on first abdominal segment and second abdominal segment with one palmate or crenulate seta. Lateral tubercle on second thoracic segment and third thoracic segment with two large palmate setae and one smooth seta. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

lacandona
Dorso-internal and dorso-external tubercles of third to sixth abdominal segment with palmate setae. 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. Ocular patch with 1 ocular seta.

lindquisti
Cephalic seta "a" present well developed. Cephalic seta g present. 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. Lateral tubercle on first abdominal segment and second abdominal segment with two palmate or crenulate setae and one smooth seta. Lateral tubercle on second thoracic segment and third thoracic segment with two large palmate setae and one smooth seta. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

matildae
Cephalic seta "a" absent. Cephalic seta g absent. 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. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

mirabilis
Cephalic seta "a" present well developed. Cephalic seta g present. Cephalic setae a, f, and ocm similar to other setae. Dorsal body setae rather crenulate, thin and long. 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-lateral tubercles of second thoracic segment and third thoracic segment with two palmate setae and one sensorial seta. Lateral tubercle on first abdominal segment and second abdominal segment with one palmate or crenulate seta. Lateral tubercle on second thoracic segment and third thoracic segment with two large palmate setae and one smooth seta. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

normae
Cephalic seta "a" absent. Cephalic seta g present. 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. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

pascuali
Dorso-internal and dorso-external tubercles of third to sixth abdominal segment with elongate, cylindrical and barbulate setae. 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. Ocular patch with 1 ocular seta.

primigenia
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.

quetzalae
Cephalic seta "a" present. Cephalic seta g absent. 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. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

saham
Cephalic seta "a" present well developed. Cephalic seta g present. 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-lateral tubercles of second thoracic segment and third thoracic segment with one palmate seta and one sensorial seta. Lateral tubercle on first abdominal segment and second abdominal segment with one palmate or crenulate seta. Lateral tubercle on second thoracic segment and third thoracic segment with two large palmate setae and one smooth seta. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

schusteri
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. Ocular patch with 2 ocular setae. Ocular setae not similar in size and shape: the posterior seta palmate, the anterior seta crenulate and long.

wilsoni
Cephalic seta "a" present well developed. Cephalic seta g present. 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. Lateral tubercle on second thoracic segment and third thoracic segment with two smooth and short setae. Ocular patch with 2 ocular setae. Ocular setae both similar in size and shape.

References