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Little Wasp? on Goldenrod - Epeolus carolinus - male

Little Wasp? on Goldenrod - Epeolus carolinus - Male
Ft. Walton Beach, Okaloosa County, Florida, USA
October 18, 2016
I am even stymied as to wasp or bee on this one. The lack of hair suggests wasp, but the body seems more bee-like. Any help you can give me would be appreciated. Thanks in advance.

Images of this individual: tag all
Little Wasp? on Goldenrod - Epeolus carolinus - male Little Wasp? on Goldenrod - Epeolus carolinus Little Wasp? on Goldenrod - Epeolus carolinus

Moved from Epeolus.

Epeolus carolinus
I've been working on a revision of this genus for North American spp. since 2013, and was actually looking for fresh specimens of this species in Florida last month for molecular work but couldn't find any. Was it on Euthamia? I have seen paratypes. The fasciae are bright yellow and interrupted medially, and the axillae are much more distinctly hooked (i.e. angled to the side) than in E. pusillus or E. scutellaris.

Thank you!
Thank you for your help with this! This individual (and many other species) were on pine barren goldenrod, Solidago fistulosa.

You're welcome
That's probably a new floral record. The host species of this cuckoo bee is unknown, so be sure to post pictures of any co-occurring polyester bees (genus Colletes) you might come across.

No luck
I looked through my images from this time frame and do not see any Colletes among them. I will have to see what I can find next summer, I guess. Good luck with your revision on the genus - and thanks again.

Will do
I will re-examine my photos from around this period and see if I captured any Colletes. Nothing is coming to mind, but I'll double check. How many days pre- or post- this sighting would you be interested in?

Thanks for checking
The flight seasons of cuckoo bees and their hosts do not necessarily overlap completely, so it's hard to answer that question. If present, their temporal occurrence I suspect would coincide with the flowering period of that Solidao sp. in the area you were taking pictures. the records I've seen of E. carolinus from Florida span from mid-October to early November.

Moved from ID Request.

Working on species i.d.
I have compared my images to the descriptions on each Epeolus species and am still having trouble aligning this individual with a particular species. The interrupted yellow abdominal bands are a stopper for me. Overall, the color of this individual seems more like E. pusillus, except for the reddish brown tuburcles on the last segment of the thorax. Those tubercles seem more typical of E. scutellaris. Neither E. pusillus nor E. scutellaris appear to have such fully divided abdominal bands as this individual does, but I cannot find another species that fits the description any more closely, even if I expand my search to species that technically shouldn't be found in our area.

Thank you.
Is there any way to get down to the species level? I have other photos of this individual that might have specific details.....

Cuckoo Bee
Epeolini. I'd guess Triepeolus, but I'm unfamiliar with this species.

Thank you
That's giving me a good start - much further than I'd gotten on my own.

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