A new species of Syntretus Foerster (Hymenoptera: Braconidae: Euphorinae), a parasitoid of the stingless bee Trigona carbonaria Smith (Hymenoptera: Apidae: Meliponinae)

A new species of euphorine braconid, Syntretus trigonaphagus sp. nov., is described and illustrated. This is the first Australian Syntretus species to be described and the first record of braconids parasitising Trigona Jurine stingless bees. Egg-laying by adults and emergence of larvae from the host Trigona carbonaria is detailed. A 12S ribosomal rRNA gene fragment was sequenced to confirm the association of larvae and adults of the wasp parasitoid.