A new species of Chelonus (Areselonus) (Hymenoptera, Braconidae) from India reared from Acrocercopslysibathra (Meyrick) on Cordialatifolia Roxb. Author Ahmad, Zubair Author Ghramh, Hamed A. text ZooKeys 2018 737 75 80 http://dx.doi.org/10.3897/zookeys.737.20835 journal article http://dx.doi.org/10.3897/zookeys.737.20835 1313-2970-737-75 F60218C6E5C745DB8BB80E3A7C4419AD F60218C6E5C745DB8BB80E3A7C4419AD Chelonus spinigaster sp. n. Figs 1, 2-8 Material examined. Holotype, ♀, INDIA: Uttar Pradesh, Aligarh, 11. VIII. 1980., ex. Acrocercop lysibathra on Cordia latifolia Roxb. (coll. Shujauddin) (HB-364, ZDAMU). Paratypes, 7♀, 14 ♂♂, with same data as holotype (HB-364, ZDAMU). Figure 1. Chelonus spinigaster sp. n., female, holotype, habitus, lateral aspect. Diagnosis. Chelonus (Areselonus) spinigaster sp. n. is closely related to C. (A.) chailini (Walker & Huddleston, 1987) but differs from it in having the metasoma strongly declivous below the spine (metasoma angled with apical spine, hardly or not declivous below spine in C. (A.) chailini ); clypeus rugose (clypeus sparsely punctate in C. (A.) chailini ); and the wings hyaline (wings partially infuscate apically in C. (A.) chailini ). Description. Holotype. Female: Body length: 2.4 mm. Head 1.6 x as wide as long; eye 1.7 x as long as temple in dorsal view; frons strigose, slightly depressed, carina distinct; OOL = 1.5 x POL; face rugulose, 1.8 x as wide as high, carina absent; clypeus rugose; malar space twice basal width of mandible, latter with two subequal teeth; antenna 16-segmented, subfiliform, extending back slightly beyond base of metasoma, scape twice as long as broad, F1 almost 3.0 x as long as wide, this ratio decreases gradually, F8-F11 almost as long as wide, F12-F13 slightly longer than wide and apical segment twice as long as wide. Mesosoma 1.2 x as long as wide in lateral view; mesoscutum reticulate-rugose, notauli shallow; scutellum reticulate; propodeum reticulate-rugose, lateral pair of tubercles almost as long as submedian pair. Wings: Fore wing shorter than body; pterostigma twice as long as wide, slightly longer than 1-R1; 3-SR 1.6 x as long as r; SR1 curved. Legs : Hind femur 3.3 x as long as broad, 0.8 x as long as hind tibia, hind tibia 1.3 x as long wide and 1.3 x longer than hind tarsus. Metasoma 2.8 x as long as high in lateral view, posteriorly distinctly less than twice as high as basally, strongly convex medially, reticulate-rugose with converging carinae on basal fourth and a small spine at apex; ventral opening not reaching apex, distance from ventral opening to apex of metasoma 1.7 x as long as hind basitarsus; ovipositor sheaths in lateral view almost as long as hind basitarsus; metasoma strongly declivous below apical spine (Figs 7, 8). Figures 2-8. Chelonus spinigaster sp. n., female, holotype. 2 Fore wing 3 hind leg 4 antenna of female 5 antenna (of male) 6 metasoma, dorsal aspect 7 metasoma, lateral view 8 apex of metasoma, lateral aspect. Colour: Head and mesosoma black; antenna yellow, gradually becoming brown towards apex; eyes black with yellowish tint; ocelli brownish black, stemmaticum black; metasoma brownish black; apical spine of metasoma and legs brown with fore and mid tibiae and tarsi yellowish, coxae blackish brown; wings hyaline, pterostigma, parastigma, veins C+SC+ R and 1-R1 brown, rest of veins slightly pigmented. Male: Similar to female except rather elongated antenna; apex of metasoma devoid of a foramen. Host. Acrocercops lysibathra (Meyrick). Distribution. India: Uttar Pradesh. Etymology. The species name refers to the presence of a spine on the metasoma.