The genitalia and adults of fifteen type material of Sesiidae described by S. MATSUMURA are illustrated and figured : Chamanthedon coreacola, Conopia chibensis, C. chosensis, C. galloisi, C. mushana, C. producta, Melittia formosana, Paranthrene daisensis, P. hirayamai, P. yezonica, Scasiba taikanensis, Sesia quercus, Spherodoptera [sic] okinawana, Zenodoxus shakojianus, Z. taiwanellus.
