Natural enemies of Maruca vitrata (Geyer) feeding concealed inside leaf whorls of a green manure legume, Sesbania cannabina, were monitored during the 1996 and 1997 summer seasons in Taiwan. A braconid, Apanteles taragamae, accounted for an average of 92% of all parasitoid specimens reared from M. vitrata larvae and pupae. Other parasitoid species included two other braconids: Bassus asper and Dolichogenidea sp., three ichneumonids: Trichomma sp., Triclistus sp., and Plectochorus sp., and two unidentified tachinids. All parasitoid species attacked M. vitrata larvae and emerged as mature larvae from host larvae (braconids) or as adults from host pupae (ichneumonids and tachinids). One unidentified predatory staphylinid and three entomopathogenic fungi: Fusarium sp. Paecilomyces sp. and Beauveria bassiana were also observed attacking M. vitrata larvae. Apanteles taragamae is a solitary endoparasitoid. Its parasitism reached as high as 63% of M. vitrata larvae found attacking S. cannabina. The parasitism was higher during June to August and reduced during September to November when other parasitoid species were more active. Nine species of hyperparasitoids, all belonging to Hymenoptera, were recovered, mainly from the braconids. none