http://www.collembola.org/key/paronini.htm - Last updated on 2017.09.30 by Frans Janssens
Checklist of the Collembola: Key to the genera of Paronellini

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.

Saral K. Mitra, Zoological Survey of India, Calcutta, West Bengal, India
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). Macrochaetae absent on cephalic areas parietalis, genalis,
        occipitalis, and cervalis (fig.1).............. Campylothorax
      Macrochaetae present on cephalic areas parietalis, genalis,
        occipitalis, and cervalis................................... 2
 

Fig.1.
 
2(1). Dorsal cephalic macrochaetae D1, D2 located towards vertex, form
        a narrow rectangle on joining (fig.2b); cephalic macrosetae
        G1 present (fig.2b)................................ Paronella
      Dorsal cephalic macrochaetae D1, D2 located towards vertex, form
        a broad rectangle on joining (fig.2a); cephalic macrosetae G1
        absent (fig.2a).............................. Dicranocentruga

Fig.2.
 


Differential diagnoses

Campylothorax
Macrochaetae absent on cephalic areas parietalis, genalis, occipitalis, and cervalis (fig.1).

Dicranocentruga
Cephalic macrosetae G1 absent (fig.2a). Dorsal cephalic macrochaetae D1, D2 located towards vertex, form a broad rectangle on joining (fig.2a). Macrochaetae present on cephalic areas parietalis, genalis, occipitalis, and cervalis.

Paronella
Cephalic macrosetae G1 present (fig.2b). Dorsal cephalic macrochaetae D1, D2 located towards vertex, form a narrow rectangle on joining (fig.2b). Macrochaetae present on cephalic areas parietalis, genalis, occipitalis, and cervalis.


References