Species of Isodermus Erichson

Antennae slender, second segment not strongly thickened anteriorly, third segment antennal as long as fourth. Abdomen dilated and much wider than thorax. Tibia strongly thickened apically. Seven ventral segment on either side of bilobed plates elongate, subtriangular in female................ .. Isodermus gayi (Spinola) (Fig. 4 C–D).