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Photo#1534100
Syrhphid fly (Toxomerus marginatus) on Frogfruit - Toxomerus boscii

Syrhphid fly (Toxomerus marginatus) on Frogfruit - Toxomerus boscii
Ft. Walton Beach, Okaloosa County, Florida, USA
May 15, 2018
This image is very blurry, but in it is the "dot" at the end of the abdomen that I thought identified this individual as T. marginatus.

Images of this individual: tag all
Syrhphid fly (Toxomerus marginatus) on Frogfruit - Toxomerus boscii Syrhphid fly (Toxomerus marginatus) on Frogfruit - Toxomerus boscii Syrhphid fly (Toxomerus marginatus) on Frogfruit - Toxomerus boscii Syrhphid fly (Toxomerus marginatus) on Frogfruit - Toxomerus boscii

Moved

Moved
Moved from Toxomerus.

T. boscii
I would call this T. boscii based on abdomen pattern (fairly unique as far as I can tell), dark centre to scutellum, and dark ring around hind femur. However there's a slight possibility it's one of the other Florida species I haven't seen diagrams of, and the yellow line on the thorax isn't particularly thin.
There are several observations currently identified as T. boscii in Florida that I am skeptical about.

The dot is often present in T. marginatus...
...but it's not a diagnostic characteristic--particularly in FL, where there are a number of Toxomerus species not found elsewhere.

 
Again, my apologies....
...and thanks for catching me on this. Your site has said that it may be impossible to tell which Toxomerus species it is, then, based solely on photographic images - and my images are not of very high quality, I'm afraid. Should I just remove them?

 
No apology needed...
...and please don't remove the images. Let's give the syrphid experts a chance to have a look at them. It's possible that they'll be able to name the species. Even if they can't, the photos can remain on the genus page. They may prove helpful if researchers attempt to tackle Florida's Toxomerus species at some point in the future.

 
Thanks
Thanks for your help. My last (and only) entomology class was 40 years ago, but I still love insects and I am trying to identify all of the insects (and other animals) that I find in my yard/gardens as I increase the native plant material and decrease the exotics. It's fascinating stuff to try to tease out the complex interactions I find.

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