A new gregarious braconid endoparasitoid, Dolichogenidea stantoni was recorded from larvae of Diaphania indica infesting cucurbits in and around Bangalore. Peak parasitism was observed in the months of June and October 2003. A mean parasitism of 37.26 [plus or minus] 4.01 per cent was observed. Each parasitized larva produced a mean of 16.32 [plus or minus] 1.86 cocoons. The per cent emergence of adult was 82.23. The sex-ratio under field condition was more of female biased (1: 4.20). Diaphania indica (Pyralidae) : Host Dolichogenidea stantoni (Braconidae) : Parasite Reproduction; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Ecology; Population dynamics; Population structure; Land zones; Oriental region; Eurasia; Asia; India Diaphania indica; Hymenopteran parasites; New host record; host parasite relationships & parasite biology; Dolichogenidea stantoni; Karnataka; Bangalore Dolichogenidea stantoni; Reproductive productivity; Lepidopteran hosts; New host record; host parasite relationships & parasite biology; Diaphania indica; Population sex ratio; Karnataka; Bangalore none