Three new species of the genus macrorrhyncha winnertz in Japan, with redescription of M. Ezoensis (Okada) (Diptera: Keroplatidae)

Abstract

Three new species of the genus Macrorrhyncha, M. circularis, M. trilobata and M. uncinata, are described from Japan. M. ezoensis (Okada, 1938) is redescribed and illustrations of male and female terminalia are provided for the first time. M. uncinata is inferred to be related to M. rostrata (Zetterstedt, 1851). A key to the Japanese species is given.