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

> > What is this bug?

Diver has attached this picture to aid in identification. The message is below.
View Full SizeView Full Size (1.4X larger)
DiverSeptember 11th, 2016, 10:21 pm
Northern Ontario

Posts: 2
Hi there, I found this insect skittering on the surface of a lake. Is this a terrestrial insect that blew onto the water? I cannot find a similar picture. I thought it might be a caddis species. This was in northern ontario on a canadian shield lake.

Thank you, Richard
TaxonSeptember 12th, 2016, 1:04 am
Site Editor
Plano, TX

Posts: 1262
Hi Richard-

I believe it to be the aquatic moth, Lomographa semiclarata (Bluish Spring Moth).
Roger Rohrbeck
www.FlyfishingEntomology.com
MillcreekSeptember 12th, 2016, 11:53 am
Healdsburg, CA

Posts: 291
Roger,

I believe it to be the aquatic moth, Lomographa semiclarata (Bluish Spring Moth).


I think it's likely L. semiclarata as well, but it's not aquatic as far as I can determine. The larvae feed on alders, chokecerries, juneberries, hawthorns, poplars and Prunus sp. I can't determine where it pupates, but there are no references to underwater pupation.

Mark
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
TaxonSeptember 12th, 2016, 12:53 pm
Site Editor
Plano, TX

Posts: 1262
Mark-

Yes, I should have said non-aquatic. :-)
Roger Rohrbeck
www.FlyfishingEntomology.com
MillcreekSeptember 12th, 2016, 2:45 pm
Healdsburg, CA

Posts: 291
Roger,

Just keeping you honest :).
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
DiverSeptember 12th, 2016, 4:15 pm
Northern Ontario

Posts: 2
Hello and thank you! I had a great deal of fun last night after posting using various keys trying to come up with the species. I did not come anywhere close to the right guess! Thanks again Taxon and Millcreek.

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: identification of insect
In Calopteryx Damselfly Nymph by Mohinder
1Sep 5, 2010
by Taxon
Re: Help they are on my house
In the Insect Order Ephemeroptera by KGotz
4Jun 27, 2008
by Ffhd1clt
Re: Help identifying?
In the Identify This! Board by Doublezz105
3Jul 9, 2007
by Taxon
Re: Beetles
In Fly Tying by FredH
24Oct 8, 2011
by Jmd123
Re: Site updates from August 9, 2011
In Site Updates by Bnewell
3Aug 10, 2011
by Entoman
Re: Dark reddish-brown spinner
In the Identify This! Board by Wiflyfisher
13Jul 25, 2014
by Millcreek
Re: Mix-up
In Siphlonurus autumnalis Mayfly Nymph by GONZO
2Jul 2, 2011
by Troutnut
Re: What is this insect??
In the Identify This! Board by Dirremeang
1Apr 8, 2008
by Taxon
Re: Mother's day hatch in Montana
In General Discussion by Millcreek
6Jun 12, 2016
by Jmd123
Re: Isoperla pinta
In the Identify This! Board by Millcreek
4Dec 6, 2016
by PaulRoberts
Most Recent Posts
Re: euro nymphing leader question
In Gear Talk by Dale1386 (Iasgair replied)
Re: Grannoms and Blue Quills
In Fishing Reports by Martinlf (Roguerat replied)
Survey for swiss fly fishing reel maker
In Gear Talk by Swisssagar
Re: Lost my Brodin net - Ugh!
In General Discussion by Wbranch
Re: New too fly fishing, have some questions.
In General Discussion by Trailman (Troutnut replied)
Re: How to find out what to fish for nearby?
In Beginner Help by Thethrill02 (Trailman replied)
Re: Steelhead coloration
In General Discussion by Roguerat (Strmanglr replied)
Re: Trump administration attacks on trout streams
In Site Updates by Troutnut (Adirman replied)
Re: Stock image of the black fly larvae
In Simuliidae Black Fly Larva by Strimble (Troutnut replied)
Re: kreinik braid
In General Discussion by Flytyerinpa (Planettrout replied)