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Photo#65912
The last few species from Cacalia - Hylaeus hyalinatus - male

The last few species from Cacalia - Hylaeus hyalinatus - Male
Balaban backyard, Skokie, Cook County, Illinois, USA
July 19, 2006
Size: ~5mm
And finally one cute little bee with a white face. These are the last few species that we photographed on Cacalia in the backyard on Wednesday. If these are unidentifiable, feel free to frass or tell us to do so.

Images of this individual: tag all
The last few species from Cacalia - Hylaeus hyalinatus - male The last few species from Cacalia - Hylaeus hyalinatus - male

Moved
Moved from Yellow-masked Bees.

I've now seen specimens from Cook Co.
so have more confidence in the H. hyalinatus ID

looks like Hylaeus hyalinatus, native to Europe
If so, the first record for the New World outside of New York and Ontario. Please try to get more photos or better yet specimens to document the significant range extension of this invasive species, which, if verified, is publishable. Please post any additional photos of this bee, even if poor, and please try to get a photo showing the abdominal apex as H. hyalinatus has a distinctive spatulate, projecting sternum 8. I would also like to see the underside of the antennae.

Male Hylaeus.
This is a male yellow-faced bee in the genus Hylaeus, family Colletidae. Obviously, some are ivory-faced bees:-)

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