http://www.collembola.org/key/xenyodes.htm - Last updated on 2024.01.31 by Frans Janssens

Checklist of the Collembola: Key to the species of Xenyllodes

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.

Arne Fjellberg, Mageroveien 168, N-3145 Tjome, Norway
Frans Janssens, Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium

Rationale

Key

1(0). Ocelli 2 + 2 (fig.1a)......................................... 2 Ocelli 5 + 5 (fig.1b)......................................... 3
Fig.1.
2(1). Dens with only one seta; furca reduced; mucro short...... wapiti Dens with two setae (fig.2); furca not reduced (fig.2); mucro long, curved and blunt (fig.2)......................... psammo
Fig.2.
3(1). Body colour pale blue.................................. mohuitli Body colour violet-gray over white background................. 4
4(3). Dens longer than mucro; sixth abdominal segment with clavate setae (fig.3b)........................................ armatus Dens subequal in length to mucro; sixth abdominal segment with acuminate setae (fig.3a).................................... 5
Fig.3.
5(4). First to third abdominal segment seta a3 absent; first tibiotarsus with 11 setae; third thoracic segment without microsensillum...................................... palaciosi First to third abdominal segment seta a3 present; first tibiotarsus with 12 setae; third thoracic segment with microsensillum.................................. unguidentatus

References