Checklist of the Collembola: Key to the genera of Arrhopalitidae |
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.
Robert S. Vargovitsh,
Schmalhausen Institute of Zoology NAS of Ukraine, Kyiv, 01601, Ukraine
Frans Janssens,
Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium
1(0). Secondary seta FSa on all tibiotarsi present (fig.1b); seta p of first abdominal segment is located below the level of trichobothrium B............................. Pygmarrhopalites Secondary seta FSa on protibiotarsus and mesotibiotarsus absent (fig.1a); seta p of first abdominal segment is located at least on or above the level of trichobothrium B............. 2 |
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2(1). Circumanal row on sixth abdominal segment nearly complete: setae mps3 and mpi1 optional; fourth antennal segment with up to 15 whorls of setae; trichobothrial pattern caecus-type: ABC angle is suborthogonal (fig.2a)........................ Arrhopalites Circumanal row on sixth abdominal segment strongly reduced: mps1, mps3, mpi1 and mpi2 are absent; fourth antennal segment with 20 whorls of setae; trichobothrial pattern pygmaeus-type: ABC angle is close to flat (fig.2b)............. Troglopalites |
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