Key to genera of Palaearctic Peritelini

1. Tarsal claw single (Fig. 1B)............................................................. Solariola Flach, 1908

1’ Tarsal claws free, connate or of different lengths............................................................. 2

2. Tarsal claws free (Fig. 1D)................................................................................ Simo Dejan, 1821; Ripetelus, F. Solari, 1950; Troglorhythmus Alziar & Lemaire, 2008; Simmeiropsis Pierotti & Bellò, 2013

2’ Claws connate or of different lengths...................................................................... 3

3. Tarsal claws with different lengths (Fig. 1E)......................................... Gymnomorphus Seidlitz, 1865

3’ Tarsal claws connate and about the same length (Fig. 1C)........................................ Peritelus Germar, 1824; Centricnemus Germar, 1827; Meira Jacquelin du Val, 1852; Leptosphaerotus Seidlitz, 1865; Pseudomeira Stierlin, 1881; Dolichomeira F. Solari, 1955; Heteromeira F. Solari, 1955; Lepretius Pierotti & Bellò, 1997; Meirella Pierotti & Bellò, 1997; Leptomeira Pierotti & Bellò, 1997; Pseudosimo Pierotti & Bellò, 1999; Borovecia Pierotti & Bellò, 2001; Heteromeiropsis Pierotti & Bellò, 2004; Euplister Pierotti & Bellò, 2010; Pseudoperitelus Pierotti & Bellò, 2010 .