Gibson, G.A.P. 2011, The species of Eupelmus (Eupelmus) Dalman and Eupelmus (Episolindelia) Girault (Hymenoptera: Eupelmidae) in North America north of Mexico. Zootaxa
2951:22,25
[ It is unknown whether Eupelmus annulatus is a naturally occurring Holarctic species or was introduced accidentally to North America from Europe. ]
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