Leiodes okawai species group

Species included. Leiodes kamezawai sp. nov., L. okawai Nakane, 1963, L. yukihikoi sp. nov.

Diagnosis. Elytra unicolor and with sparsely arranged large punctures between rows of punctures (Figs. 61D, 64D, 67D); mesoventrite with distinct excavation between median carina and transverse carina (Figs. 61E, 64E, 67E); protarsi sexually dimorphic, tarsomeres 2–4 a little expanded in males (Figs. 62A, 65A, 68A); mesotibiae without sexual dimorphism, simply square at interoapical corner; male metafemur bearing prominent dorsal projection posteroapically, projection of female much smaller than in male (Figs. 62G, 62H, 65G, 65H, 68G, 68H); pubescence of metaventrite distinctly or indistinctly sexually dimorphic (Figs. 61F, 61G, 64F, 64G, 67F, 67G); aedeagus relatively small compared to body size, with one or a few small sclerites in inner sacs (Figs. 63A, 66A, 69A); male abdominal sternite 8 moderately or strongly curved (Figs. 63C, 66D, 69C); female abdominal sternite 8 with a spiculum ventrale at central point of anterior margin (Figs. 63D, 66E, 69D).

Differential diagnosis. Leiodes okawai species group can be separated from other species group by having the male metafemur bearing a prominent dorsal projection posteroapically and the aedeagus relatively small compared to the body size.