A CYTOGENETIC STUDY ON 8 BEETLE SPECIES (COLEOPTERA, CARABIDAE, SCARABAEIDAE, CERAMBYCIDAE, CHRYSOMELIDAE) FROM CENTRAL-EUROPE

Karyotypic details were studied in males of eight beetle species from four families, viz. Carabidae: Elaphrus cupreus Duft. (2n=33, n=16+X), Elaphrus aureus Mull. (2n=31, n=15+X), Elaphrus ullrichii Redt. (2n=3 1, n=15+X); Scarabaeidae: Oxythyrea funesta (Poda) (2n=19, n=9+X); Cer ambycidae: Agapanthia violacea (F.) (2n=20, n=9+Xy(p)), and Chrysomeli dae: Oulema gallaeciana (Heyd.) (2n=16, n=7+Xy(p)), Colaphus sophiae ( Schall.) (2n=27, n=13+X), Phaedon cochleariae (F.) (2n=34, n=16+Xy(p)) . The chromosome number and sex determining system of four species are described for the first time. Evolutionary trends in karyotypes of th e studied beetle groups are briefly discussed.