A revision of the Old World species of Scirpophaga (Lepidoptera : Pyralidae) Angoon Lewvanich Entomology and Zoology Division, Department of Agriculture, Bangkhen, Bangkok 9, Thailand Contents Synopsis 185 Introduction ............. 185 Material studied 186 Acknowledgements 187 The main characters of Schoenobiinae ........ 188 Taxonomic history of the genus Scirpophaga 189 Biology and host-plants 191 Zoogeography of Scirpophaga .......... 193 Scirpophaga Treitschke, 1832 .......... 195 General morphology of Scirpophaga 196 Key to species-groups of Scirpophaga 202 The praelata-group 203 Key to species of the praelata-group 204 The excerptalis-group 222 Key to species of the excerptalis-group 222 The occidentella-group ........... 233 Key to species of the occidentella-group 233 The lineata-group 240 Key to species of the lineata-group 240 The incertulas-group ........... 242 Key to species of the incertulas-group 243 The gotoi-group 249 The whalley /-group ............ 250 References 251 Index . 297 Synopsis The genus Scirpophaga is revised. Thirty-five species belonging to seven species-groups are recognized, one genus and twelve species are newly placed in synonymy, S. excerptalis is reinstated from synonymy, ten species are transferred to Scirpophaga, S. praelata var. xanthopygata is raised to specific rank, and five species are described as new. One neotype (for S. Virginia) and nine lectotypes are designated. The main characters of the Schoenobiinae are given and the general morphology of Scirpophaga is described ; the species are separated mainly on genitalic characters. The zoogeography of the group is briefly discussed and a distribution map of each species is included. Introduction The rice and sugar-cane borers of the genus Scirpophaga have long been known as species of economic importance. Because of external similarity among the species in this group, the identities of the various species have been very confused. The earlier descriptions are based mainly on external morphology. Except for those of the Australian species, the genitalia have not Bull. Br. Mm. not. Hist. (Ent.) 42 (4): 185-298 Issued 25 June 1981
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