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Vespid wasp - Pachodynerus nasidens

Vespid wasp - Pachodynerus nasidens
DeBary, Florida, USA
August 5, 2004
Another small wasp (~1.5cm) nectaring on Fennel. Looks somewhat like some of the Ancistrocerus species in the subfamily Eumeninae, but I'm not even confident of subfamily.


Pachodynerus nasidens (FL)
This appears to be the first picture of this species on bugguide (and a very nice one!). P. nasidens is very differently coloured than the other Floridian species of this genus, P. erynnis (several images on Bugguide). P. nasidens is a largely tropical species and occurs throughout the Caribbean, Central and South America as far south as northern Argentina. It also occurs on several Pacific Islands such as Hawaii, Tahiti, Irian Jaya, etc. This picture is furthermore remarkable because it represents the northernmost record of this species. Previous Floridian records are from the Keys, the Miami, and the St. Petersburg area. The species is also known from the Brownsville area, Texas. Perhaps someone can create a new folder for this remarkable species. Another picture of the species (taken two years later) is found here:

Interesting mimicry
I'v always been somewhat perplexed with this quite unusual color pattern (as far as Eumeninae go). Now, I realize this species is a very good mimic of the social wasp Brachygastra mellifica, whose a picture of workers on their nest envelope has been recently shared by Patrick Coin.

Mason wasp
Yes, subfamily Eumeninae in the Vespidae. Really hard to tell genus, but I'd bet on Euodynerus.

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