Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Register
·
Log In
Home
Guide
ID Request
Recent
Frass
Forums
Donate
Help
Clickable Guide
Calendar
Upcoming Events
Photos of
insects
and
people
from the
2024 BugGuide gathering in Idaho
July 24-27
Moth submissions
from
National Moth Week 2024
Photos of
insects
and
people
from the
2022 BugGuide gathering in New Mexico
, July 20-24
Photos of
insects
and
people
from the
Spring 2021 gathering in Louisiana
, April 28-May 2
Photos of
insects
and
people
from the
2019 gathering in Louisiana
, July 25-27
Photos of
insects
and
people
from the
2018 gathering in Virginia
, July 27-29
Previous events
Taxonomy
Browse
Info
Images
Links
Books
Data
Home
» Guide »
Arthropods (Arthropoda)
»
Hexapods (Hexapoda)
»
Insects (Insecta)
»
Mayflies (Ephemeroptera)
»
Pisciforma
»
Heptagenioidea
»
Flatheaded Mayflies (Heptageniidae)
»
Stenacron
»
interpunctatum complex (Stenacron interpunctatum complex)
»
Stenacron interpunctatum
Photo#842959
Copyright © 2013
ophis
flatheaded mayfly -
Stenacron interpunctatum
-
New Milford, Litchfield County, Connecticut, USA
August 10, 2013
Size: 7 mm
Clear-winged female imago or spinner. Came to lights on 2nd floor deck. Only member of genus reported from CT (
Kondratieff, 2000
).
Larger image
Images of this individual:
tag all
tag
·
login
or
register
to post comments
Contributed by
ophis
on 16 September, 2013 - 8:16pm
ohioense / interpunctatum
the measurements are in correct that is why i never use them. this sample was 9.5-10-5mm.
here are the features that lead directly to form then to valid species. on the frontale shelf the forwardmost of the head there are black lines on either side. there are black spots on top of the head close to the compound eyes, there is a medial black spot on the pronotum, and one on either side of the notum, on the top and dead center of the notum is a mild faint black stripe, on the sides of the thorax there are pleura streaks, there are numerous heavy black crossveins, all ten tergites have transverse bands, and most importantly there a pale spiracular spots on the lateral areas of each abdominal segments. the only form in the genus that have all these details is the former species ohionese. Ohioense has been clumped in the interpunctatum complex since 1947.
your are correct that it is a Stenacron interpunctatum However
(Stenacron interpunctatum / ohioense) is more correct.
Mack.
…
The Stenonema Rangers of Ontario
, 15 June, 2016 - 1:47pm
login
or
register
to post comments
re: ohioense / interpunctatum
thanks for info
…
ophis
, 16 June, 2016 - 4:21am
login
or
register
to post comments
Comment viewing options
Flat list - collapsed
Flat list - expanded
Threaded list - collapsed
Threaded list - expanded
Date - newest first
Date - oldest first
10 comments per page
30 comments per page
50 comments per page
70 comments per page
90 comments per page
Select your preferred way to display the comments and click 'Save settings' to activate your changes.