A new species of the genus Microlestodes Baehr from Arnhem Land, Northern Territory, Australia (Insecta: Coieoptera: Carabidae: Lebiini)

A new species of the beetle genus Microlestodes Baehr is described from Arnhem Land in the Northern Territory, Australia: M. arnhemensis sp. nov. This new species is closely related to the widespread M. macleayi (Csiki), and to M. rufoniger Baehr and M. inocitlatits Bachr, both latter species from northern tropical Australia, but can be distinguished by the different colour pattern, wider pronotum with wider base, and the differently shaped aedeagus. It is included in the key to the species of the genus Microlestodes (vide Baehr 1987: 29). For comparsion of body shape, photographs of the three related species are included.