http://www.collembola.org/key/willinae.htm - Last updated on 2024.08.30 by Frans Janssens

Checklist of the Collembola: Key to the genera of Willowsiinae

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, Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
Anne Bedos, Muséum National d'Histoire Naturelle, UMR7205 CNRS, Paris, France
Louis Deharveng, Muséum National d'Histoire Naturelle, UMR7205 CNRS, Paris, France
Frans Janssens, Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium

Rationale

Key

1(0). Scales with long ribs....................................... 2 Scales with short striations............................... 10
2(1). Dental scales absent........................................ 3 Dental scales present.............................. Lepidodens
3(2). Eyes absent................................................. 4 Eyes present................................................ 6
4(3). Mucro bidentate................................. Szeptyckiella Mucro falcate............................................... 5
5(4). Macrochaetotaxy strongly reduced................ Lepidosinella Macrochaetotaxy well developed...................... Hawinella
6(3). Mucro bidentate............................................. 7 Mucro falcate............................................... 9
7(6). Scales chaeta-like, narrow; scales finely sculpted with all ribs short; scales in posterior row of tergites elongate and narrower..................................... Janetschekbrya Scales not chaeta-like; scales variously sculpted; scales in posterior row of tergites not much longer................. 8
8(7). Scales narrow; scales with two uninterrupted lateral ribs..... ............................................... Americabrya Scales not narrow; scales with various types of sculpture, from very short spinules to long ribs............. Willowsia
9(6). Mucronal basal spine absent.......................... Desertia Mucronal basal spine present...................... Drepanosira
10(1). Scales apically pointed.................................... 11 Scales apically rounded.................................... 12
11(10). Sixth abdominal segment with finger like projection (fig.1).. ................................................ Epimetrura Sixth abdominal segment without finger like projection........ ................................................ Lepidobrya
Fig.1.
12(10). Manubrium with distal thick blunt macrochaetae (fig.2)....... ........................................... Lepidocyrtoides Manubrium without distal thick blunt macrochaetae.. Lepidosira
Fig.2.

References