http://www.collembola.org/key/orchesel.htm - Last updated on 2017.06.30 by Frans Janssens
Checklist of the Collembola: Key to the subfamilies of Orchesellidae

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.

Feng Zhang, Department of Entomology and Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
Louis Deharveng, Muséum National d'Histoire Naturelle, 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). Body scales absent............................................ 2
      Body scales present............................... Heteromurinae
 
2(1). Mucro not tridentate; tergal S-microchaetae present........... 3
      Mucro tridentate; tergal S-microchaetae absent... Bessoniellinae
 
3(2). Mucro bidentate; trochanteral organ in adults with more than 10
        chaetae......................................... Orchesellinae
      Mucro falcate; trochanteral organ in adults with 3-4 chaetae....
         ................................................ Nothobryinae

Differential diagnoses

Bessoniellinae
Body scales absent. Mucro tridentate. Tergal S-microchaetae absent.

Heteromurinae
Body scales present.

Nothobryinae
Body scales absent. Mucro not tridentate. Mucro falcate. Tergal S-microchaetae present. Trochanteral organ in adults with 3–4 chaetae.

Orchesellinae
Body scales absent. Mucro not tridentate. Mucro bidentate. Tergal S-microchaetae present. Trochanteral organ in adults with more than 10 chaetae.


References