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Cystomastacoides

Cystomastacoides is a genus of parasitoid wasps belonging to the family Braconidae. It was named by Dutch entomologist Kees van Achterberg in 1997 from a single species Cystomastacoides coxalis discovered in Yunnan, China. To date there are only four species described in the genus, the other three being reported on 19 March 2013. As typical ichneumon wasps, they are characterised by a deadly parasitoid behaviour. Their larvae grow inside the body of other insects, such as caterpillars, and feed on their internal organs inside the body until they emerge.