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Species guide - species detail

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Dibrachys cavus (Parasitic wasp)



Dibrachys cavus is a small parasitic wasp in the family Pteromalidae. Dibrachys cavus was a relatively uncommon parasitic wasp in Bee Atlas blocks, and was mostly found in the northern part of the state, particularly along the north shore of Lake Superior.


Dibrachys cavus is a very small wasp with a dull metallic blue-green head and thorax and a black abdomen.

Nest Structure

Dibrachys cavus have been reared from a very wide range of insect hosts. In Bee Atlas blocks, they emerged from the nests of Megachile pugnata, and from tunnels that also produced Chrysidid wasps, Melittobia wasps, and Lepidoptera.

Hole Sizes

No information at this time.


No information at this time.

Activity Period

No information at this time.


Peters, R. S. & Baur, H. A revision of the Dibrachys cavus species complex (Hymenoptera: Chalcidoidea: Pteromalidae). Zootaxa 2937, 1–30 (2011). Thank you to John Luhmen for help identifying parasitic wasps.

Minnesota Record Map

These data are from the Minnesota Bee Atlas project.

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