» Order Ephemeroptera (Mayflies)
8 families aren't included.
This is page 5 of specimens of Ephemeroptera. Visit the main Ephemeroptera page for:
- The behavior and habitat of Ephemeroptera.
- 67 underwater pictures of Ephemeroptera.
- 4 streamside pictures of Ephemeroptera.
Pictures of 820 Mayfly Specimens:
Male Epeorus (Little Maryatts) Mayfly Spinner
View 10 PicturesThis spinner and hundreds of others like it were dancing over the road through a very narrow valley carved by a tiny, steep tributary of the trout stream I was fishing. I got strange looks from a few passers-by, standing around on the road with a butterfly net... Male Baetidae (Blue-Winged Olives) Mayfly Nymph
View 10 PicturesThis male nymph is probably in its final instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.). The wing pads (
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.) are extremely black and the large turbinate (
The wing pads on this final instar Baetidae
mayfly nymph are extremely dark.
Turbinate: Shaped like a top or elevated on a stalk; usually refers to the eyes of some adult male Baetidae mayflies which are wider near the tip than at the base.) eyes are very apparent inside the nymph's head.
This male Baetidae
dun has slightly turbinate eyes.