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Arthropods (Arthropoda)
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Mayflies (Ephemeroptera)
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Heptagenioidea
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Flatheaded Mayflies (Heptageniidae)
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Stenacron
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interpunctatum complex (Stenacron interpunctatum complex)
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Stenacron interpunctatum
Photo#1347064
Copyright © 2017
Masumi Palhof
Mayfly -
Stenacron interpunctatum
Fort Mccoy - Ocklawaha River , Marion County, Florida, USA
January 13, 2017
Images of this individual:
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Contributed by
Masumi Palhof
on 14 March, 2017 - 8:50pm
Last updated 4 May, 2020 - 3:34am
Moved
Moved from
Stenacron floridense
.
…
Roger Rohrbeck
, 4 May, 2020 - 3:34am
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Roger
on inaturalist.org 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.
…
The Stenonema Rangers of Ontario
, 3 May, 2020 - 11:21pm
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BTW
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.
Mack.
…
The Stenonema Rangers of Ontario
, 31 March, 2017 - 2:29pm
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Wow!
Thanks for letting me know! That is very cool. I hope I can photograph more when I get back to Florida.
…
Masumi Palhof
, 31 March, 2017 - 8:07pm
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Me too
We need as many Stenacron photos as we can get.
Mack.
…
The Stenonema Rangers of Ontario
, 31 March, 2017 - 8:10pm
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Moved
Moved from
Stenacron
.
…
Roger Rohrbeck
, 17 March, 2017 - 4:55pm
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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.
Mack.
…
The Stenonema Rangers of Ontario
, 17 March, 2017 - 3:15pm
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Sure!
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.
…
Masumi Palhof
, 17 March, 2017 - 10:05pm
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thank you
thanks again
…
The Stenonema Rangers of Ontario
, 17 March, 2017 - 11:00pm
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S. floridense
Have added species page for
S. floridense
.
Thanks, Mack
…
Roger Rohrbeck
, 17 March, 2017 - 5:08pm
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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.
Mack.
…
The Stenonema Rangers of Ontario
, 17 March, 2017 - 5:17pm
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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.
Mack.
…
The Stenonema Rangers of Ontario
, 17 March, 2017 - 9:52am
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Yes
Its a bit unfocused but I just posted it.
…
Masumi Palhof
, 17 March, 2017 - 12:44pm
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Moved
Moved from
Mayflies
.
…
Roger Rohrbeck
, 15 March, 2017 - 12:14am
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Stenacron
Hi Masumi-
I believe this female subimago to be of genus
Stenacron
.
…
Roger Rohrbeck
, 15 March, 2017 - 12:13am
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Moved
Moved from
ID Request
.
…
Ken Wolgemuth
, 14 March, 2017 - 9:07pm
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