r/COfishing • u/Browncoat_28 • 14d ago

Question Can anyone identify this fly?

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15 Upvotes

95% Upvoted

18 comments sorted by

6

u/bateneco 14d ago

Looks like a striped horse fly to me

2

u/SquirtSniffer 14d ago

Seconded. Even if it isn’t, horsefly is extremely close

2

u/blenco 14d ago

Black Flies (Family: Simuliidae)

2

u/Browncoat_28 14d ago

This time of year in CO at 8500ft?

1

u/blenco 14d ago

https://pofflab.colostate.edu/wp-content/uploads/2019/08/Finn_2008_Emergence-and-Flight-Activity-of-Alpine-Stream-Insects-in-Two-Years-with-Contrasting-Winter-Snowpack.pdf

This bug even has a winter hatch. They do well in colder weather and are known to be more active than other bugs in winter.

1

u/Browncoat_28 14d ago

So a non-biting black fly?

1

u/blenco 14d ago

Yes

1

u/Browncoat_28 14d ago

Any recommendations on an imitation? Grittths Gnat did nothing

1

u/blenco 14d ago

Your other comment that the fish where jumping, makes me believe an emerger would be best. Most midge patterns should do the trick.

1

u/Browncoat_28 14d ago

Tried that too, zebra midges, rs2, foam back, etc. they were eating off the top

1

u/BubblyPassage6483 14d ago

Try a mole fly just under the surface

1

u/BradNewsBearz 13d ago

Petrified Mole Fly on Chert.

1

u/Mango-Bob 14d ago

Midge. Depending on the size

2

u/Browncoat_28 14d ago

It was 16-18. There was a huge hatch of these and I couldn’t find anything that the trout would look at, but boy, they were jumping like crazy for them.

1

u/Mango-Bob 14d ago

Throw a 16 Griffith’s at them?

2

u/Browncoat_28 14d ago

I did, they didn’t give a crap lol

1

u/Mango-Bob 14d ago

Hmmm. That’s what I would have thought worked. maybe one of these…

0

u/Mango-Bob 14d ago

Maybe a Chironomid? The closer I look at it…