First report of the genus Brachygaster Leach (Hymenoptera: Evaniidae) from India with two new species Author Rameshkumar, Anandhan Zoological Survey of India, M-Block, New Alipore, Kolkata- 700 053, West Bengal, India Author Huben, Mike R. 0000-0002-2683-5263 Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA & mike @ huben. us; https: // orcid. org / 0000 - 0002 - 2683 - 5263 mike@huben.us Author Kazmi, Sarfrazul Islam 0000-0003-2344-8660 Zoological Survey of India, M-Block, New Alipore, Kolkata- 700 053, West Bengal, India & kazmizsi @ gmail. com; https: // orcid. org / 0000 - 0003 - 2344 - 8660 kazmizsi@gmail.com text Zootaxa 2021 2021-10-13 5052 1 145 150 journal article 4066 10.11646/zootaxa.5052.1.10 14c83ec6-f28c-4208-9644-25554028c295 1175-5326 5565867 0E1A9B6C-1305-4505-AE1B-57B55F31FA5D Brachygaster rarum sp.nov. ( Figs 1–6 ) Description. Holotype female. Body length 3.8 mm (Head to tip of metasoma). Head . Black, quadrate, deeply punctured with an arch-like pattern of sculptures; ocelli and eyes silvery; genae deeply punctured and sculptured; post orbital carinae present, extending from clypeus to mid inner margins of eyes; silvery hairs uniformly scattered on the face; mandibles bidentate; fronto-vertex length half of the head width as well as scape length; distance between posterior ocellus 2.3 × of the distance between anterior ocellus, 3.5 × of posterior ocellus and eye margin; malar space equal to scape length and distance between posterior ocelli; eyes ovoid. Antenna with 13 antennomeres (excluding radicle), thickened towards the tip; radicle, scape, pedicel, F1–F8 yellowish- brown, remaining flagellomeres brown; longitudinal sensillae visible; antennal sockets arise at about 1/3 base of eyes; pedicel and F1 quadrate, remaining flagellomeres longer than broad; scape 3 × longer than broad, slightly longer than pedicel, F1 and F2 combined, 2.3 × shorter than eye length. Relative measurements (in mm)— head width (height), 1.3 (1.2); fronto-vertex width, 0.6; POL, 0.35; AOL, 0.15; OOL, 0.1; eye length (width), 0.7 (0.5); malar space length, 0.3; scape length (width), 0.3 (0.1); pedicel length (width), 0.09 (0.09); F1 length (width), 0.08 (0.08); F2 length (width), 0.1 (0.08). Mesosoma . Black, pronotum short, with silvery setae; pronotal neck obscure; dorsolateral area of pronotum with the sharp ending; carinae present on lateral sides of pronotum; pronotal carina inconspicuous in the mid-dorsal area and prominent in lateral view. Mesoscutum about 2.0 × longer than broad, nitid with regular fovea; notaulus absent; tegulae testaceous; transverse sculpture with silvery setae present; anterior mesoscutal sulcus, parascutal carina and parascutal sulcus present. Mesoscutellum about 3.0 × broader than long, nitid with regular foveae; an arch-like pattern of sculpture with silvery-white setae. Metanotum: Lateral side covered by setae; metanotum and metascutellum form a continuous structure; metascutellum flat and nitid; epicnemial carina without median process; prespecular sulcus smooth and nitid. Propodeum with regular foveae; the dorsal propodeal area with long stiff setae; adpetiolar strip broader than long; nucha present and elevated (in lateral view). Legs: Procoxa dark brown except basal part testaceous, remaining part of forelegs testaceous; mid-coxa dark brown except apex and remaining parts of mid legs testaceous; metacoxa dark brown except apex testaceous; hind femur, tibia, tarsi brownish; hind femur as long as hind tibia; spines present on the dorsal surface of hind tibia and hind tarsal segments; length of hind leg 2.8 × mesosoma height; external tibial spur half of the metatarsal length. Relative measurements (in mm)—mesosoma height, 1.2; mesoscutum length (width), 0.6 (1.1); scutellum length (width), 0.3 (0.9); hind leg length, 3.4; hind femur length (width), 1.0 (0.25); hind tibia length (width), 1.0 (0.2); internal tibial spur length, 0.25; external tibial spur length, 0.3. Wings . Hyaline; fore wing with three complete cells; costal cell half of the combined length of head and mesosoma; costal cell 3.5 × as long as stigmal vein; stigmal vein as wide as costal cell; 4RS and r-m vein spectral; fore wing 2.3 × longer than wide. Relative measurements (in mm)—fore wing length (width), 2.8 (1.2); costal cell length (width), 1.05 (0.09); stigmal vein length (width), 0.30 (0.1); hind wing length (width), 1.5 (0.5). Metasoma . Ovoid in shape; lustrous dark brown, smooth; ovipositor not exserted; petiole brown with longitudinal sculpture, not punctate, half of the metasoma length. Relative measurements (in mm)—petiole length (width), 0.6 (0.15); metasoma length (width), 1.1 (0.9). Male. Unknown. Host. Unknown. Distribution. India : Maharashtra . Material examined. Holotype , Female (on card), “ INDIA : Maharashtra , Satara, Soangaon, 08.iii.2009 , net sweep, Coll. S. I. Kazmi ”. Etymology. The species is named after its presumed rareness. Comments . Brachygaster rarum sp. nov. is close to B. tschekylli Madl (1989) and B. conjugens Enderlein , however, the latter two differ by the following characters: in B. tschekylli : body red-brown; parapsidal furrows clearly developed; petiole dorsally smooth. In B. conjugens : metasoma coarse, triangular; POL= OAL= OOL; petiole 0.7 × of metasoma.