Antennal sensilla of the ground beetle Bembidion lampros Hbst (Coleoptera,Carabidae)

Antennal sensilla typology, number and distribution pattern were studied in the ground beetle Bembidion lampros Hbst (Coleoptera, Carabidae) using sca nning electron microscopy. The 1.6-1.8 mm long filiform antennae of both se xes consist of the scape, pedicel and of the flagellum composed of nine fla gellomeres. In both sexes, three types of sensilla chaetica, two types of s ensilla trichodea, five types of sensilla basiconica, one type of sensilla coeloconica, one type of sensilla campaniformia and Bohm sensilla were dist inguished. The possible function of the sensilla was discussed and three ty pes of sensilla were considered as olfactory, sensilla trichodea type 2 and sensilla basiconica types 1 and 2. Olfactory sensilla occupy dorsal and/or ventral areas of the flagellomeres and occur sparsely (sensilla basiconica type 1) or not at all (sensilla basiconica type 2 and sensilla trichodea t ype 2) outside these areas. No remarkable sexual differences in the types, numbers and distribution of antennal sensilla were found.