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tiny hopping wasp - Eupelmus messene - female

tiny hopping wasp - Eupelmus messene - Female
Groton, Middlesex County, Massachusetts, USA
July 1, 2010
Size: 3mm

How come all vesicularis have been moved to messene? The formal is still a valid species.

Info page
says: Formerly treated as a synonym of Eupelmus vesicularis (Retzius, 1783), which does not occur in North America (Fusu 2017).

Interesting. Thank you.
Interesting. Thank you.

Moved from Eupelmidae.
Gary, thanks for the ID and the info!

tiny hopping wasp
This is a female of Eupelmus (Macroneura) vesicularis (Retzius) (Eupelmidae), one of the most ubiquitous eupelmids in North America. It is thought to have been introduced into N. Am. from Europe with the earliest settlers. It has over 140 hosts recorded and only females are known in N. Am., where the species apparently is parthenogenetic.

Moved from parasitic Apocrita.
Thanks Ross.

Chalcid: Eupelmidae…
Nice example of a nearly wingless female member of this group. Features include an elongate, metallic-colored body, flat mesonotum, antennae with a single annellus, and long, stout mid-tibial spurs. Similar to encyrtids, but different in the position of the thoracic coxae. As you noticed, this is, indeed, a family of jumpers.

See reference here.

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