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Eupeodes probably volucris  - Eupeodes volucris - female

Eupeodes probably volucris - Eupeodes volucris - Female
Borrego Springs, San Diego County, California, USA
February 28, 1998
Size: BL about 9 mm
This syrphid was visiting Cryptantha flowers at DiGiorgio Road in the low sandy desert. It looks very similar to both Eupeodes volucris and Scaeva pyrastri. Even the wing venation is similar! But, E. volucris males are common and easily identifiable, and I usually find this syrphid in association with an E. volucris male. And so I suspect it is the female. From these images can it be identified? Is there any way to tell the female E. volucris and the S. pyrastri apart?

Images of this individual: tag all
Eupeodes probably volucris  - Eupeodes volucris - female Eupeodes probably volucris  - Eupeodes volucris - female

Moved from Eupeodes. I believe that there is enough of consensus on this individual and the other female to warrant the move to species. If any anyone disputes I'll be glad to move it back.

Great. Thanks, Ted.
All those males were getting lonesome!

Moved from ID Request.

Putting these at genus level for now. Great comments on ID'ing some of these similar syrphids.

Thanks, Ron, for your ID and comments. I did go to see what Gerald had said about the differences. The problem is that the views that are captured in two different photos are not identical. On the Eupeodes female I see these two wonderful black dots above the antennae. But I can't see this section of the face on the Scaeva photo. Such are the limits of photography in the wild!

Quite right Ron :-))
It's indeed an Eupeodes, probably volucris female indeed!

Eupeodes probably volucris female
Thanks so much for your identification. These two genera are very similarly, at least dorsally. I am going to post two images of what I think is a Scaeva pyrastri. I've tried to study the two images, Eupeodes and Scaeva, together to see what differences I could come up with. Will note with the postings. See

Thanks for the confirmation, Gerard.

Eupeodes, but I'm not sure of species.
Actually, I'm not good with species and won't guess. Separating this genus from Scaeva pyrastri gets a bit subjective. I'd suggest you check some earlier posts and see how Gerard describes the differences. I would say the ivory markings on Eupeodes are more precise, with sharper lines and without "blobby" ends. High science, huh?

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