Figures 37–42.

Six important characters of Distenia spp. not to scale. 37–38 Distenia gracilis. 37 male from Far East, Russia 38 female from Liaoning, China 39–40 Distenia japonica 39 male from Kyoto, Japan 40 female from Kyoto, Japan 41–42 Distenia orientalis sp. n. 41 male from Tianmushan, China 42 female from Tianmushan, China a last segment of maxillary palp, showing the tip and the ration of length to width b scape c pronotum d basal part of elytron e ventrite V f mesotibia of male, showing the apical protruding lobe.