Distinct tan coloration in wing
All specimens 6-10 mm
stone fly of 7 mm body length wing 12 mm very dark brown/black
AKA- Dark Hendrickson
AKA October Caddis Adult
Genus - Pycnopsyche?
Simulid (Black Fly)
Simulid male adult
Ephemerella subvaria nymph
Swift River, Belchertown, MA
Sporadic hatch, males and females from 12 PM - 3 PM.
A few spinners above water much of the afternoon and evening. About a size 14. Cream colored body with light greyish markings on abdomen.
Probably baetis. Very small, size 24 or 26. A few spinners in the air.
Decent hatch of sulphurs, probably Ephemerella dorothea.
Unknown mayfly spinner. Very small, size 26 or so.
Decent hatch, probably Ephemerella Dorothea.
A very few sulphur mayflies, probably E. dorothea were emerging. Size 22 or so. Note the thumb on one photo, to give a sense of scale.
Several Black Caddis size 18-20 (Mystacides sepulchralis?) were flying in clusters just above the water surface, but as usual, no landing on the surface or interaction with trout observed.
Cream Cahill, size 14 or so mayflies. Several spinners in air, p
Very sparse hatch of size 20-22 sulphur mayflies, probably Ephemerella dorothea. Lots of anglers on the water.
Heard several towhees and whippoorwills (at least 2) calling.
Sulphur dun mayfly, probably Ephemerella dorothea. Size 20. Decent hatch. Also saw one slightly darker and slightly larger dun in flight. Was that a late-blooming Ephemerella invaria?
Also fished above Route 9, 7-9PM. Same insects there, and saw a few black caddis, size 18-20 above water. Water above route 9 was 53F.
Ephemerella, probably dorothea dun observed floating spent wing on Swift River, Massachusetts.
A fair number of duns were emerging. Trout were sporadically rising to them.