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Mason Wasp? - Parancistrocerus perennis - female

Mason Wasp? - Parancistrocerus perennis - Female
Springfield, Virginia, USA
September 25, 2004
Found sitting on the browning foliage of a peony. Any help identifying is appreciated.

Moved from Stenodynerus.

Parancistrocerus perennis, female (VA)
See also comments on picture #86727. Here the nearly transverse (not crescent-shaped) yellow band of the female clypeus is visible, an additional character for the species.

Mason wasp
Nice job on the ID:-) If it was quite tiny, then it is likely a species of Symmorphus. If it was larger, then it is probably an Ancistrocerus sp. Still, I am just beginning to learn about this complicated family.

Ancistrocerus sp.
I then suspect that this is an Ancistrocerus sp. because it was not particularly tiny as far as wasps go, and I have seen similar ones that were smaller. Thanks, Eric!

Stenodynerus sp. - female
Due to the astounding quality of this photograph (as usual with Mr. Leung), the shortness of the tegulae, barely reaching the parategulae, is clearly visible on the thorax of this elegant mason wasp. Together with the presence of a small yellow spot on the forehead (a Microdynerus or a Leptochilus would have a whole black forehead), the very coarse puncture of the first abdominal tergite (which lacks, by the way, the transversal ridge owned by every Ancistrocerus specimen), this is quite typical for Stenodynerus. Unfortunately, this is a fairly species-rich genus, so that an ID to the species level would prove much more tricky.

Thank you very much for that information! I shall try to find out more about genus Stenodynerus.

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