Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events

Syrphid Fly - Spilomyia alcimus - female

Syrphid Fly - Spilomyia alcimus - Female
Daphne (Bayfront Park), Baldwin County, Alabama, USA
May 9, 2008
This has to be in genus Pseudomasaris but have not found suitable match for thorax pattern, if that is a specific key. Thanks.

Moved from Spilomyia.
Just noticed that we already have some posts of this sp., so here it flies to the species page.

Yes, they can fool you
into believing, at least briefly in the wild, that they're some kind of wasp. They even mimic the wing beat frequency of yellowjackets.
Your nice photo is of Spilomyia alcimus; the abdominal pattern is diagnostic. This species ranges from Newfoundland to Wisconsin, and south to FL and MS.
This was an interesting diversion upon which I chanced while checking whether I had yet posted a certain Pseudomasaris species.

You've been had!
... by a syrphid fly of the genus Spilomyia, perhaps Spilomyia longicornis, but this has more yellow than I'm used to seeing:

These things are extremely convincing mimics of hymenoptera.

Color Me Blind
I was so focused on the pattern I didn't even notice the itty-bitty fly antennae. I been had, again. Thanks. BTW how did you add the image? I viewed the source and I'm not familar with some html code (class="bgimage-thumb").

To add an image as above...
Use this format, where "xxxx" is replaced by the number on the top left corner of the desired image:


More info of this nature is found at the Help tab, which is sort of a mini-manual.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.