Atree, a remarkable new genus of the subfamily Brachistinae (Hymenoptera: Braconidae) and the first report of the tribe Diospilini from India Author Ranjith, A. P. Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Srirampura, Jakkur Post, Bangalore 560064, India. Author Achterberg, Cornelis Van Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands. Author Priyadarsanan, Dharma Rajan 0000-0001-8137-3404 Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Srirampura, Jakkur Post, Bangalore 560064, India. & priyan @ atree. org; https: // orcid. org / 0000 - 0001 - 8137 - 3404 priyan@atree.org text Zootaxa 2022 2022-03-07 5105 4 571 580 journal article 20316 10.11646/zootaxa.5105.4.6 b21ab983-9b17-4521-b747-82813cdb0631 1175-5326 6333882 F23F1045-9077-4E58-9BC7-6C94A1A75368 Atree rajathae Ranjith, van Achterberg & Priyadarsanan sp. nov. ( Figures 1–4 ) urn:lsid:zoobank.org:act: 64C2C147-30E8-4150-BD06-42AA4A7BA86E Material examined . Holotype , female, INDIA : Tamil Nadu , Kalakad Mundanthurai Tiger Reserve ( KMTR ), primary forest, understorey, Malaise trap , 5.x.2008 , coll. Priyadarsanan, D. R . Paratype : one female , same data as holotype . Description . Holotype , female. Body length 6.0 mm, fore wing 4.3 mm , ovipositor 6.9 mm . FIGURE 5. A–F. Diospilus affinis (Wesmael) , female; G–M. Aspigonus diversicornis Wesmael , female A) wings; B) first and second flagellomeres; C, M) hind tarsal claw; D, K) propleuron, ventral view; E, I) labial palp; F, H) pronotum, dorsal view; G) hind wing; J) apical part of fore wing; L) clypeus, anterior view. Head . Head 1.5 × as wide as long in anterior and dorsal view. Face 2.5 × as wide as long. Ratio of height of clypeus: inter-tentorial distance: tentorio-ocular distance = 1.2: 1.0: 1.4. Malar space 1.1 × as long as basal width of mandible. Length of eye 1.8 × as long as temple in dorsal view. Ratio of POL: transverse diameter of ocellus: OOL = 1.0: 1.1: 3.4. Antenna 40 segmented, 0.7 × as long as body. Scape 1.7 × as long as wide. Pedicel as long as wide. First flagellomere 1.3 × as long as second. First and second flagellomeres 2.8 and 2.3 × as long as wide, respectively. Terminal flagellomere 1.8 × as long as wide. FIGURE 6. A–E. Aspicolpus carinator (Nees) , female; F–I. Taphaeus hiator (Thunberg) , female; J–M , Vadumasonium vardyorum van Achterberg & Broad , female A) pronotum, dorsal view; B, I, J) clypeus and mandibles, anterior view; C) hind tarsal claw; D) apical part of fore wing; E) labial palp; F, M) wings; G, L) first and second flagellomeres; H, K) first metasomal tergite, dorsal view. Mesosoma . Mesosoma 1.4 × as long as high. Scutellar sulcus divided by three carinae ( Fig. 2C ). Wings . Fore wing: Pterostigma 4.0 × as long wide. Ratio of length of veins r: 3-SR: SR1 = 1.0: 3.2: 8.7. Ratio of length of veins 2-SR: 3-SR: SR1 = 1.0: 1.0: 2.7. Hind wing: Vein M+CU 2.6 × as long as 1-M. Vein 1r-m 1.5 × as long as 2-SC+R. Legs . Ratio of length of fore femur: tibia: tarsus = 1.0: 1.1: 1.2 ( Fig. 3C ). Fore femur 4.0 × as long as wide. Ratio of length of hind femur: tibia: basitarsus = 1.6: 2.2: 1.0 ( Fig. 3D ). Hind femur, tibia and basitarsus 4.2, 8.4, 6.7 × as long as wide respectively. Metasoma . Metasoma 1.3 × as long as head and mesosoma combined. First metasomal tergite 1.6 × as long as wide. Second metasomal tergite 1.1 × as long as third, 0.8 × as long as wide. Third metasomal tergite 0.5 × as long as wide. Setose part of ovipositor sheath 1.6 × as long as fore wing. Colour . Body mostly brownish black except antenna, mandible basally, pronotum posteriorly, fore and mid legs, hind legs except tibia and tarsus, tegula and pterostigma yellowish brown, ocelli, sternites, metasomal tergites 3–6 posteriorly and apex of ovipositor sheath yellow. Etymology . The species is named commemorating ATREE’s Rajatha Jubilee (25 th anniversary) which is being celebrated in 2021–22. Gender: feminine. Male . Unknown. Biology . Unknown.