Noyes, J.S., & Higashiura, Y. 2020 The species of Astymachus Howard (Hymenoptera: Encyrtidae), potentially important parasitoids of Aclerdidae (Hemiptera: Coccoidea) associated with grasses (Poaceae), with descriptions of three new species. Journal of Natural History 54(9–1): 665–679
Notes: Species of Astymachus (Hymenoptera: Encyrtidae) are of potential economic importance as primary parasitoids of aclerdids (Hemiptera: Aclerdidae) on grasses (Poaceae). We review the known species and describe three as new, bringing the total to eight. The species are characterised by means of a dichotomous key, diagnoses and illustrations and their known hosts are summarised.