The ground beetle genus Bembidion Latreille in Baltic amber: Review of preserved specimens and first 3D reconstruction of endophallic structures using X-ray microscopy (Coleoptera, Carabidae, Bembidiini)

Bembidion bukejsi sp. n., holotype, volume rendering of selected body parts 9 caudal aspect of body 10 tarsomeres and distal portion of tibia of right proleg. 11 frontal section of body (ventral aspect) showing position of the abdominal segment IX which surrounds the aedeagus 12 abdominal segment IX and aedeagal median lobe, left lateral aspect 13 sagittal section of aedeagal median lobe, left lateral aspect. Abbreviations: antc = antecosta; bow-l = left wall of basal orfice; bsc-fd = folding structures originating from the endophallic brush sclerite; cfd = central folding system of endophallus; csc = central sclerite of endophallus (left lobe); dpl = dorsal plate of endophallus; mla = aedeagal median lobe apex; mlb = aedeagal median lobe base; mlw-d = dorsal wall of median lobe; mlw-v = ventral wall of median lobe; mtg IX = mediotergite IX; omp = ostial microtrichial patch; pm-l = left paramere (basal portion).