Stonefly · Aquatic insect

Eastern Golden Stone

Acroneuria carolinensis
Eastern Golden Stone — Adult
Size
18–24mm
Hook size
#8–6
Hatch window
Season June–JulyPeak time Evening / after dark
Water temperature
16° peak
12°21°
Hatches from 12°C, peaking at 16°C, tailing off by 21°C.
How fish feed on it

Adult insects on the water are inefficient — a caddis skittering to lay eggs, a stonefly blundering about after crawling out, neither built for elegance. Trout treat it as an easy meal and a bit of theatre at once, chasing a moving fly with more enthusiasm than they'd ever give a still one. Movement is the tell; a static adult imitation often just sits there unloved.

Flies that imitate this
Golden Stone
Golden Stone
Stimulator
Stimulator
Ecology
Rivers onlySpate rivers
Where you'll find this
  • North America — EastPresent
Present throughout
Identification

Acroneuria carolinensis , the Carolina stone , is a species of common stonefly in the family Perlidae. It is found in North America.