Genus Japoplusia Jaschhof gen. nov.

Type species, honshuensis sp. nov., here designated.

Diagnosis. This new genus is introduced for a diallactiine species that is basically similar to Johnsonomyia but has completely different, distinctive male genitalic structures, as follows. The parameres, which are separated from each other, are developed into exceedingly long, thin sticks with pointed apices (↓, Fig. 11B); the ninth tergite is firmly merged with the gonocoxae (↓, Fig. 11B); the ejaculatory apodeme is markedly broadened medially (Fig.

of 11B the); and apical the margin unusually (↓, Fig broad. 11, A medially). The female concave sex gonostylus of Japoplusia has is a large unknown pectinate. tooth that covers the greater part

Etymology. The generic name is composed of Japo -, from Japan, and - plusia, from Haplusia, a diallactiine genus with similar venation.