Troutnut.com Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

> > Related Baetis Topic

LastchanceFebruary 4th, 2012, 8:48 am
Portage, PA

Posts: 437
If I'm not mistaken, the first baetis nymphs that appear in the spring in PA have a light olive abdomen and a dark olive thorax. Which species is this? They appear to be size 18s and 20s.
Bruce
PaulRobertsFebruary 4th, 2012, 9:35 am
Colorado

Posts: 1776
The first to appear in NY (I was aware of, and if I remember correctly, AND if the name hasn't changed!) was tricaudatus. It's a #16/#18 (Mustad) as a dun. If the stream gives a second brood, the later summer ones are smaller.I've found tricaudatus here in CO Front Range streams too, and believe they are our first emergers. They are also #16/#18 as a dun.

Ah! Nymphs, you say... Spring Baetid nymphs run from a light golden olive to a dark brownish olive. I assume that the lighter ones, often smaller, are lesser developed tricaudatus (they don't all mature at exactly the same time, dependent on thermal units apparently), and some are likely immatures of other species. The largest ones (#18/#20 is a good ballpark) with the nearly black wing-buds are the ones about to emerge.

Quick Reply

You have to be logged in to post on the forum. It's this easy:
Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.

Related Discussions

TitleRepliesLast Reply
Re: BWO Color
In General Discussion by Goose
3Mar 27, 2013
by JOHNW
Re: Baetis Nymph, Is this it?
In General Discussion by Lastchance
1Mar 10, 2013
by Martinlf
Re: Baetid nymph color
In Male Baetidae Mayfly Nymph by Martinlf
1Dec 26, 2006
by GONZO
Re: Can someone please identify this insect?
In General Discussion by Byhaugh
11Apr 24, 2014
by Brookyman
Re: light & dark cahill nymph patterns
In General Discussion by Lastchance
2Feb 18, 2008
by JAD
Re: new patterns 2010
In Fly Tying by Gutcutter
2Mar 21, 2010
by Mfb1978
Re: z-lon or shuck material
In Fly Tying by Flytyerinpa
2Jun 9, 2017
by FishMe69
Re: Baetis softhackle
In the Photography Board by Shawnny3
12Jul 9, 2012
by Crepuscular
Re: Grannom vs Apple Caddis
In the Insect Order Trichoptera by Walleye
7Jan 11, 2017
by Afishinado
Re: 2 tail
In the Identify This! Board by Sandfly
4Nov 12, 2011
by Sayfu
Most Recent Posts
Re: Spinadis simplex
In Female Heptageniidae Mayfly Dun by Taxon (Troutnut replied)
Re: Fishing with My Nephew: Sixth Annual Trip
In Fishing Reports by Martinlf (Oldredbarn replied)
Re: Neoleptophlebia
In Neoleptophlebia Mayfly Dun by Millcreek (Troutnut replied)
Neoleptophlebia
In Neoleptophlebia Mayfly Nymph by Millcreek
Neoleptoptphlebia
In Neoleptophlebia Mayfly Nymph by Millcreek
Neoleptophlebia
In Neoleptophlebia Mayfly Nymph by Millcreek
Hesperoperla pacifica
In Hesperoperla pacifica Stonefly Nymph by Millcreek
Re: Pinched-down barbs vs designed and manufactured barbless hooks?
In Site Updates by Troutnut (Partsman replied)
New "identification needs" page on the site
In Site Updates by Troutnut
Re: Au Sable Holy Waters Sulphurs
In General Discussion by Brian314 (Oldredbarn replied)