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Photo#31131
Yellow-haired Yellowjacket worker - Vespula flavopilosa

Yellow-haired Yellowjacket worker - Vespula flavopilosa
Newbury, Essex County, Massachusetts, USA
August 24, 2004
I couldn't find a match in the guide. Any idaes which one this is?

Great - you've got it!
With this worker collecting nectar, the Yellow-haired Yellowjacket (Vespula flavopilosa) is now represented by one individual of the three casts in this Guide. I was pretty sure it would still happen this year. This species is really a sibling of V. vulgaris, but the yellowish, relatively shorter pilosity is clearly visible here. Moreover, most - if not all - North American specimens of V. vulgaris have a complete black basal band on the first urotergite, rather than a diamond-shaped central spot.

 
Thanks Richard
Are there any others I should be looking for in the northeastern US?

 
Hardly any left
The list is almost complete for Northeastern US now. Only three very rare species could eventually be added.
- the strictly boreal, free-living species D. albida and V. intermedia.
- the cuckoo-wasp V. austriaca, which parasitizes mainly V. acadica.

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