Two new species of cave dwelling Trechus Clairville, 1806 of the fulvus-group (Coleoptera, Carabidae, Trechinae) from Portugal

摘要

Two new cave-dwelling ground beetle species, Trechus gamae sp. n. and Trechus lunai sp. n., from Portugal, are described. The new species are included in the Trechus fulvua-group by their morphological characters. The work provides diagnostic characters in particular those of the structure of male genitalia, and the distribution of the hypo-gean species of the fulvus-gxovp at the Estremenho Karstic Massif is mapped. Some comments on the seasonal activity of T. gamae sp. n. are also given. An identification key to the males of the T. fulvus-group species from the Esfremenho Karstic Massif is presente4 and biogeographical comments are also included.