Meadowood Recreation Area, Fairfax County, VA
6 June 2015
Large (20mm or so?) olive-yellow-orange body, black eyes, dark head with markings. This female had an egg sac which dropped off during the photoshoot.
Surprised to see these out so late in the season.
at black light
Skin of nymph along the Ottawa River.
Saw 1 live animal, and 1 exoskeleton.
7mm long. Under stone in small forest stream. Attempted to key it out, and came up with Acroperla trivacuata.
Yellow-greenish body (some specimens that I did not catch were quite lime green. Don't know if these are different species). Slim, small (6-7 mm?). I notice a number of stoneflies have 3 dark dots on the head. This one did also, but the dots are connected via dark bands.
Small - size 16 or so body length. Yellow wings, body, black dots on head.
Resembles Rhabdiopteryx acuminata but that isn't here apparently.
Location: Europe > Portugal > Algarve
Date Photo Taken: March 29, 2009
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Several large stoneflies on the pavement on bridge (attracted to my headlights). Also lots of caddis and smaller flies around, didn't see any mayflies.
Very small, initially thought it was a small twig. Several flying around above a fast flowing section of stream . Also identified Leuctra nymphs in benthic samples a few days before at this location .