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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Aschiza" » Hover Flies (Syrphidae) » Eristalinae » Milesiini » Milesiina » Spilomyia » Spilomyia longicornis
Photo#140884
Spilomyia longicornis - female
Copyright © 2007 Vincent J Hickey

Spilomyia longicornis - Female
Kennebunk, York County, Maine, USA
August 28, 2007
Size: ~13mm bl
A surprise..in with Polistes wasps on favorite Goldenrod. ID via BG.Appreciate confirmation.

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Spilomyia longicornis - female Spilomyia longicornis - female
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Contributed by Vincent J Hickey on 28 August, 2007 - 7:26pm
Last updated 25 September, 2007 - 5:10pm

Moved
Moved from Spilomyia.
… Hartmut Wisch, 25 September, 2007 - 5:10pm login or register to post comments

I agree with Richard -
This is S. longicornis . S. foxleei looks somewhat similar, but is western in distribution (aside from character differences).
… Hartmut Wisch, 25 September, 2007 - 5:06pm login or register to post comments

Spilomyia yes, alcimus no
S. alcimus has a distinctly orange tinge, and less developped black markings, on the abdomen. I rather suggest Spilomyia longicornis, but this could be another very simlar species.
… Richard Vernier, 29 August, 2007 - 5:28am login or register to post comments

 
Can't help but wonder . . .
Now that it is late summer, and goldenrod is abundant here in Orange county, I've been spending a lot of time around these plants. I can not help but notice that many of the visitors of these plants, particularly wasps (such as this one) and locust borers have very similar color markings. My question is this; Who is mimicing who, and to what advantage?
… Jim Bliss, 30 August, 2007 - 5:35am login or register to post comments

 
This is not a wasp but
A fly, a wasp mimic. They use protective mimicry to fool predators who fear the wasp's sting. Flies don't have a stinger.
… Beatriz Moisset, 4 September, 2007 - 6:40am login or register to post comments

 
Spilomyia
I agree. Thanks
… Vincent J Hickey, 29 August, 2007 - 12:29pm login or register to post comments

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