Brachygaster Leach 1815

Key to Indian species of Brachygaster Leach (based on females) 1. Head with an arch-like pattern of sculpturing around antennal sockets; length of POL ≤ scape length................... 2 --. Head without an arch-like pattern of sculpturing around antennal sockets; length of POL> scape length................................................................................................. B. bangalorensis sp. nov. 2. Mandible bidentate; length of POL equal to scape length; notaulus absent; epicnemial carina without median process; nucha present and elevated; costal cell 3.5 × as long as stigmal vein; ovipositor not exserted...... B. rarum Rameshkumar et al. --. Mandible tridentate; length of POL less than scape length; notaulus present and not elevated; epicnemial carina with median process; costal cell 1.3 × as long as stigmal vein; ovipositor exserted................... B. kawadai Rameshkumar et al.