Yellowish body, can see internal dark stripe running length of abdomen.
My brother made this observation. He said there were many golden stones on the bridge above the river. There also appeared to be good numbers of sulphur mayflies. Probably E. invaria.
Isoperla fulva (Yellow Sally) stonefly.
Photograph by Matthew Cicanese (AKA — "boyoftheforest")
Small (size 20 or so) yellow stonefly, 3 dark spots, triangular pattern on head. Appears to be same species as several others seen on Underhill Brook, about 2 miles east, same day.
Small (size 20 or so) yellow stonefly. Appears to be same species as another seed and photographed that same day on a brook about 2 miles distant. 3 black dots in triangular pattern on head.
Similar in color, but perhaps a deeper yellow, to another much smaller stonefly seen along the same river this day. This one was larger, 8 mm. (The other was about 5 mm). I've seen both of these on several area rivers over the last week or so. Both kinds have 3 black dots in triangular pattern on the head. This one also has a black rectangular around the top of the first thorax segment. This is a yellow sally of some type?
Very small (size 20?) yellow stonefly. Note 3 dark spots in triangular pattern on back of head.
Small dark (dark brown or black) stonefly.
Along perennial stream in woods. Seemed bigger than the stoneflies I'm used to seeing. The scale is hard to tell. I'd say it was about 1" long.
Dirty yellow, some darker markings. Size 14 or 16?
Dark body, ladder-like vein pattern on wings, long antennae, tails not visible beyond wings.