Parthenogenetic reproduction has been reported. They may need more than three months to complete a generation.
Its possible use as biocontrol of the emerald ash borer is being studied.
"Although males are known from the Old World only females have been recovered in North America, indicating a parthenogenetic form was introduced." Comment here (Gary Gibson)
Gibson G.A.P. (2005) The world species of Balcha Walker (Hymenoptera: Chalcidoidea: Eupelmidae), parasitoids of wood-boring beetles. Zootaxa 1033: 1-62 (Full text)
J. Insect Science. Jian J. Duan, Philip B. Taylor, and Roger W. Fuester. Biology and Life History of Balcha indica, an Ectoparasitoid Attacking the Emerald Ash Borer, Agrilus planipennis, in North America. Full article.
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