Shimamyia Huang & Tachi 2024

Key to species of Shimamyia 1. Two katepisternal setae......................................................................... orientalis - Three katepisternal setae............................................................................... 2 2. Male abdominal tergite 5 with dense recumbent hairs dorsally (Fig. 8A); female with telescopic postabdomen (elongate intersegmental membrane of segments 5 and 6, and sternite 6)............................................. exigua - Male abdominal tergites 4 and 5 with dense recumbent hairs dorsally (Figs. 8B–C); female postabdomen not elongated.... 3 3. Gena 0.25–0.28 of eye height in male; male postabdomen with cerci rounded apically in dorsal view; surstylus about half as long as cercus, smoothly tapering in dorsal view, straight in lateral view........................... taiwanensis sp. nov. - Gena 0.19 of eye height in male; cerci pointed apically in dorsal view; surstylus about as long as cercus, pointed apically in dorsal view, swollen at middle in lateral view............................................... vietnamensis sp. nov.