Ryukyucardiophorus Ohira, 1973 Figs 161-162

Ryukyucardiophorus Ôhira, 1973a: 32. Type species: Paracardiophorus loochooensis, Miwa 1934: 255.

Prothorax.

Pronotum with carina extending anterad from hind angles following lateral edge (ie, not below lateral edge of prothorax, but in some species not distinguishable from the dorsal hind angle carina), not reaching anterior edge. Legs. Protibiae not modified for digging; tarsi with tarsomere 4 not lobed or lamellate, claws with 2 points per side. Bursa copulatrix with paired proximal (largest) sclerites bilobed with attached semi-sclerotised membrane with spines (Fig. 162). Also. Procoxal cavities apparently closed; aedeagus parameres apices without lateral expansions. Known from Japan, and Taiwan, 4 spp.