BACKGROUND Some species of obligate cavernicolous beetles are known to possess a unique feature-a contraction of the larval cycle. In contrast to many other subterranean beetles, life-cycle contraction in Trechini ground beetles (Carabidae) is correlated with a reduction in the number of eggs and a drastic reduction in the number of ovarioles. This remarkable peculiarity has only been reported ...

Acheroniotes golovranicensis sp. nov. from Golovranica pit (Ljubi{nja mountain range, Radovina, SE Bosnia & Herzegovina), the second known species of the genus, is described, illustrated and compared with the congeneric species Acheroniotes mlejneki Lohaj & Lakota, 2010. This new species is characterised by the different shape of pronotum, wider head and by the shape of the apical part of the a...

The phylogeny of ground beetles of supertribe Trechitae is inferred using DNA sequences of genes that code for 28S ribosomal RNA, 18S ribosomal RNA, and wingless. Within the outgroups, austral psydrines are inferred to be monophyletic, and separate from the three genera of true Psydrina (Psydrus, Nomius, Laccocenus); the austral psydrines are formally removed from Psydrini and are treated herei...

ACHILLE CASALE1, BRANKO JAL@I]2,3, ROMAN LOHAJ4 & ROMAN MLEJNEK5 Università di Sassari, Dipartimento di Zoologia e Genetica Evoluzionistica, Via Muroni 25, 07100 Sassari, Italy (e-mail: [email protected]; [email protected]) Department of Zoology, Croatian Natural History Museum, Demetrova 1, 10000 Zagreb, Croatia (e-mail: [email protected]) Croatian Biospeleological Society, Demetrova 1, 1000...