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Btbo32October 27th, 2017, 11:48 am
Posts: 13Would anyone happen to know what kind of nymph these could be?
Jersey Boy
MillcreekOctober 27th, 2017, 3:26 pm
Healdsburg, CA

Posts: 339
My guess and it's only a guess would be Maccaffertium. When were they collected, what size were they and where were they collected?
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
Btbo32October 27th, 2017, 6:02 pm
Posts: 13I collected these today on the Big Flatbrook in Sussex County Nj. I would say going by hook size probably 12-14. Not sure what a Maccaffertium is..sorry new at learning all these aquatic insects. Please advise if you could? Thanks for reaching out!
Jersey Boy
Btbo32October 27th, 2017, 6:42 pm
Posts: 13I think you were correct ( Cream Cahill nymph)
Thank you!
Jersey Boy
Btbo32October 27th, 2017, 6:58 pm
Posts: 13Anyone have an idea of a good imitation fly pattern this nymph?
Jersey Boy
MillcreekOctober 27th, 2017, 6:59 pm
Healdsburg, CA

Posts: 339
Maccaffertium is the name of a heptageniidae (flat-headed) mayfly nymph and adult. The reason I guessed Maccaffertium is because the front leg is fairly wide at the femur and looks to be banded with brown and a whitish color and because it has the general body configuration of a flat-headed nymph. I'm going on guess work as much as anything.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
WbranchOctober 29th, 2017, 7:36 am
York & Starlight PA

Posts: 2569
Maccaffertium


I thought this was the nymph of the March Brown. BTW Big Flatbrook was my "home" trout stream for about 25 years until I bought a cabin on the Delaware River.
Catskill fly fisher for fifty-five years.
Btbo32November 4th, 2017, 4:01 pm
Posts: 13March Brown? Wow great! Thanks.
Jersey Boy

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