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

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.


Penelope Greenslade, Department of Botany and Zoology, Australian National University, Australian Capital Territory, 0200, Australia
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). Dens less than twice as long as manubrium; dens with fewer than
        14 anterior setae; furcal base with less than 5/5 setae; mucro
        with two or three teeth..................................... 2
      Dens twice as long as manubrium; dens with 17-22 anterior setae;
        furcal base with 6/7 setae; mucro with one tooth............ 4
 
2(1). Dens with 11-13 anterior setae; dens about half as long as
        manubrium........................................... infelicia
      Dens with 7 anterior setae; dens about the same length as
        manubrium................................................... 3
 
3(2). Abdominal macrochaeta 1, 2, 2, 10; dens posteriorly with 3
        setae............................................... lawrencei
      Abdominal macrochaeta 3, 3, 3, 6; dens posteriorly with 4-5
        setae........................................... yongxingensis
 
4(1). Dens with 3 posterior ventral setae.................. wuyanensis
      Dens with 6 posterior ventral setae................. onychiurina

Differential diagnoses

infelicia
Dens less than twice as long as manubrium. Dens about half as long as manubrium. Dens with fewer than 14 anterior setae. Dens with 11–13 anterior setae. Furcal base with less than 5/5 setae. Mucro with two or three teeth.

lawrencei
Abdominal macrochaeta 1, 2, 2, 10. Dens less than twice as long as manubrium. Dens about the same length as manubrium. Dens posteriorly with 3 setae. Dens with fewer than 14 anterior setae. Dens with 7 anterior setae. Furcal base with less than 5/5 setae. Mucro with two or three teeth.

onychiurina
Dens twice as long as manubrium. Dens with 17–22 anterior setae. Dens with 6 posterior ventral setae. Furcal base with 6/7 setae. Mucro with one tooth.

wuyanensis
Dens twice as long as manubrium. Dens with 17–22 anterior setae. Dens with 3 posterior ventral setae. Furcal base with 6/7 setae. Mucro with one tooth.

yongxingensis
Abdominal macrochaeta 3, 3, 3, 6. Dens less than twice as long as manubrium. Dens about the same length as manubrium. Dens posteriorly with 4–5 setae. Dens with fewer than 14 anterior setae. Dens with 7 anterior setae. Furcal base with less than 5/5 setae. Mucro with two or three teeth.


References