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Mayfly - Stenacron interpunctatum

Mayfly - Stenacron interpunctatum
Fort Mccoy - Ocklawaha River , Marion County, Florida, USA
January 13, 2017

Images of this individual: tag all
Mayfly - Stenacron interpunctatum Mayfly - Stenacron interpunctatum Mayfly - Stenacron interpunctatum Mayfly - Stenacron interpunctatum Mayfly - Stenacron interpunctatum Mayfly - Stenacron interpunctatum Mayfly - Stenacron interpunctatum


on this mayfly came up 3 years later and after a very close review and compared the Sharon Moorman's sample that came later showing the red spot on the vertex this needs to be moved to True interpunctatum Say 1839.

Congratulations this is the very first photo of all Stenacron that far south. In the book the Mayflies of Florida 1986 they documented samples in fort Meyers, but never photographed them. So yours are the very first of the furthest south for a photograph for the entire genus.


Thanks for letting me know! That is very cool. I hope I can photograph more when I get back to Florida.

Me too
We need as many Stenacron photos as we can get.


Moved from Stenacron.

Stenacron floridense
Even out of focus I can see the one key I was looking for. there is a very faint "because of the stage", red stain in the middle of the vertex on the head. The only form or species that has this feature is Lewis 1974 floridense. I would like to ask you if I can use these photos in my Stenacron books. They will not be for sale but are being made available world wide as scientific literature. So there is no cash but your name and location will be listed with the photographs. If you can get more pictures of Stenacron from your area that would be beyond amazing for the genus.

I have other samples on this site that match from Tennessee and I am suggesting a review for a possible ranger extension for the species in my manuals/books.

Altitude can play a huge role in distribution as Stenacron are more commonly found in very low altitudes. Plus you are only 92.20 miles from the furthest part of the known range for this species.


Yes you can use the photos. I have others I can upload so you can take your pick. I could e-mail them to the address listed on your account or another one if you prefer so you get the higher resolution. If I find more I will photograph them, but I do not live in this area so unless they occur on the west coast of Florida (Citrus County) I may not have the opportunity for some time again to do so.

thank you
thanks again

S. floridense
Have added species page for S. floridense.

Thanks, Mack

Thank you Roger
There are some that I am still looking at that I may send to Luke for conformation they are a very tight match both larva and adult female. The larva matches my illustrations and samples at bold systems. When I am done I will comment again on them. They from Tennessee and around the 200 mile from tip of original range Lewis 1974.


head shot
do you a have a photo of the head the top of the head area is preferred. or even a face shot then I will completely identify sample.


Its a bit unfocused but I just posted it.

Moved from Mayflies.

Hi Masumi-

I believe this female subimago to be of genus Stenacron.

Moved from ID Request.

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