Date of this Version
The genus Tesarius Rakovic (1981) is an interesting group of wingless, nearly eyeless (yet probably functionally blind), sand dune-dwelling scarabs. There are presently 5 species in the genus, T. sulcipennis (Lea 1904) from Tasmania and 4 species in western North America. One of these native North American species, T. caelatus (LeConte 1857) has been found in Britain (Johnson 1975). The genus is reviewed by Rakovic (1981, 1984), who provides a key to species.