http://www.collembola.org/key/entorpha.htm - Last updated on 2017.03.31 by Frans Janssens
Checklist of the Collembola: Key to the superfamilies of Entomobryomorpha

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.

Felipe N. Soto-Adames, Illinois Natural History Survey, IL 61820, Champaign, USA
Jean-Auguste Barra, Université Louis Pasteur, Laboratoire de Zoologie, F-67000 Strasbourg, France
Kenneth A. Christiansen, Department of Biology, Grinnell College, PO Box V3, Grinnell, IA 50112-0806, USA
Rafael Jordana, Department of Zoology and Ecology, University of Navarra, 31080 Pamplona, 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). Body setae mostly ciliate; multilaterally ciliate macrosetae
        sometimes cylindrical (fig.1a) usually truncate (fig.1b) or
        broadened at the tip (fig.1c); scales absent or present..... 2
      Body setae usually smooth (fig.2a) or unilaterally ciliate
        (fig.2b); multilaterally ciliate macrosetae always acuminate
        (fig.2c); scales absent 1..................................... 3
 

Fig.1.
 

Fig.2.
 
2(1). Postocular bothriotrichum absent; abdominal segments 2-3 with
        0-1/1-2 bothriotricha............................ Tomoceroidea
      Postocular bothriotrichum present (fig.3); abdominal segments
        2-3 with 2/3 bothriotricha..................... Entomobryoidea
 

Fig.3.
 
3(1). Third abdominal segment fused with fourth abdominal segment
        (fig.4)......................................... Coenaletoidea
      Third abdominal segment not fused with subsequent segment.......
         ................................................. Isotomoidea

Fig.4.
 


Endnotes

1 Neophorella, a Tomoceridae so far known only from South Africa, will key out here, but it can be identified by having the fourth antennal segment shorter than the third, smooth dental spines, and an elongate mucro with two setae and four teeth aligned on the dorsal lamella.


Differential diagnoses

Coenaletoidea
Body setae usually smooth (fig.2a) or unilaterally ciliate (fig.2b). Multilaterally ciliate macrosetae always acuminate (fig.2c). Scales absent$note1. Third abdominal segment fused with fourth abdominal segment (fig.4).

Entomobryoidea
Abdominal segments 2–3 with 2/3 bothriotricha. Body setae mostly ciliate. Multilaterally ciliate macrosetae sometimes cylindrical (fig.1a) usually truncate (fig.1b) or broadened at the tip (fig.1c). Postocular bothriotrichum present (fig.3). Scales absent or present.

Isotomoidea
Body setae usually smooth (fig.2a) or unilaterally ciliate (fig.2b). Multilaterally ciliate macrosetae always acuminate (fig.2c). Scales absent$note1. Third abdominal segment not fused with subsequent segment.

Tomoceroidea
Abdominal segments 2–3 with 0–1/1–2 bothriotricha. Body setae mostly ciliate. Multilaterally ciliate macrosetae sometimes cylindrical (fig.1a) usually truncate (fig.1b) or broadened at the tip (fig.1c). Postocular bothriotrichum absent. Scales absent or present.


References