Large numbers of Small Mayflies were emerging from the backwater of a branch of Amistad Reservoir on this evening. Many were landing on my car, still carrying their empty larval skin in tow.
These were very tiny mayflies; typical wingspan of any of these adults was about 1 cm or less.
I'm not sure these can be identified to a lower taxon, but I'd like
Found using a dip net in a pool of clear, vegetation-filled water, in a small marshy area. The photos were taken while the arthropod was submerged in a surface-tension created 'bubble' of water.
A mayfly nymph perhaps?
Adult (spinner) sitting on my house window. 7-8 mm long, dark brown body, clear wings with speckling along front of wing. 2 tails. Large eyes = male.
Speckled wings, brown body, large orange eyes. Was resting on my door. Photo is of the specimen in the sub-imago stage. 2 hours later I noticed it still there; it had molted into imago stage. Flew off before I could get a picture
These were about 1/2" long or less. Found in creek.
Mayflies or shadflies are insects belonging to the order Ephemeroptera (from the Greek εφήμερος, ephemeros = "short-lived" (literally "lasting a day" "daily" or "day-long"), and πτερόν, pteron = "wing", referring to the brief lifespan of adults). They have been placed into an ancient group of insects termed the Palaeoptera, which also contains dragonflies and damselflies. They are aquatic insects whose immature stage (called "naiad" or, colloquially, "nymph") usually lasts one year in fresh water. The adults...