Mayflies (Ephemeroptera)


Mayflies are the most primitive winged insects. They pass the majority of their lives as aquatic nymphs in streams and lakes, and are not tolerant of polluted conditions. They are unique among insects in having an extra pre-adult (subimago) winged stage; it lasts only a day or two and is inactive, resting in vegetation. The true adult (imago) stage then emerges, leaving a shed skin, and takes flight, often to join a swarm over water or waterside vegetation.


Mayflies (Ephemeroptera)

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It's relatively common for people to upload sightings which may actually contain multiple species.E.g. photos of a plant that may also have captured an insect on one of the leaves OR a photo containin...


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Discussion

DiBickers wrote:
2 Mar 2025
@patrickcox it doesn’t look like the photos have come through?

Ephemeroptera (order)
DianneClarke wrote:
13 Nov 2024
Yes, from what I have discovered, it is only males that have the turbinate eyes

Baetidae sp. (family)
13 Nov 2024
I think only the males get the turbinate eyes

Baetidae sp. (family)
DianneClarke wrote:
10 Nov 2024
the conical structures above the compound eyes = turbinate eyes

Baetidae sp. (family)
DianneClarke wrote:
9 Nov 2024
Somewhere near to same as Centroptilum elongatum. https://www.ellura.info/Insect/Mayfly/DSC04419L-Mayfly-Centroptilum-elongatum.html

Baetidae sp. (family)
823,920 sightings of 22,548 species from 14,219 members
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