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

> > Sialis sp.



Millcreek has attached these 4 pictures to aid in identification. The message is below.
View Full SizeView Full Size (1.6X larger)
View Full SizeView Full Size (2X larger)
View Full SizeView Full Size (2.1X larger)
View Full SizeView Full Size (2X larger)
Post Reply
MillcreekDecember 1st, 2016, 12:12 pm
Healdsburg, CA

Posts: 356		This species, Sialis, also known as an alderfly, was identified to genus using Merritt, Cummins And Berg. There is no key to the California species of Sialis larvae.

They are usually found in slackwater areas of rivers and streams with a silt bottom and dead leaves. This one was found in the Russian River and measures about 16mm.
TaxonDecember 2nd, 2016, 3:05 pm
Site Editor
Royse City, TX

Posts: 1350		Very cool, Mark. I believe larvae are also found in lakes and ponds.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
MillcreekDecember 2nd, 2016, 6:03 pm
Healdsburg, CA

Posts: 356		Roger-

They are pretty neat little animals. Yeah, they do live in ponds and lakes. And I believe they are also one of the few aquatic insects that pupate on land.
TaxonDecember 2nd, 2016, 8:00 pm
Site Editor
Royse City, TX

Posts: 1350		Mark-

Right, the Megalopterans and most aquatic Coleopterans.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
CrenoDecember 4th, 2016, 10:10 am
Grants Pass, OR

Posts: 305		There are also some primarily terrestrial caddis (see Anderson 1967 for a great discussion of Philocasca demita) and a couple where larvae leave the water and pupate terrestrially. There is still alot to be learned about caddis life history in intermittent aquatic systems.
CrepuscularDecember 5th, 2016, 8:29 am
Boiling Springs, PA

Posts: 923
There are also some primarily terrestrial caddis (see Anderson 1967 for a great discussion of Philocasca demita) and a couple where larvae leave the water and pupate terrestrially. There is still alot to be learned about caddis life history in intermittent aquatic systems.


Great stuff here.

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: trying to figure out
In the Insect Family Corydalidae by Buggy		1Apr 19, 2009
by GONZO
Re: Farmington River Mayfly
In the Identify This! Board by Phels29		2Feb 25, 2015
by Byhaugh
Re: strange green worm
In the Identify This! Board by Trtklr		2May 23, 2009
by Wbranch
Re: Neophylax larvae and pupae
(9 more)

In the Photography Board by Millcreek		3Nov 27, 2014
by Millcreek
Onocosmoecus larvae and cases
(3 more)

In the Photography Board by Millcreek		0
Re: Mayfiles other than Callibaetis
In the Mayfly Genus Callibaetis by Royal_Coach		1Jan 15, 2018
by Millcreek
Re: Warmwater Caddis -Any Guesses?
In the Identify This! Board by PaulRoberts		2Feb 2, 2018
by PaulRoberts
Re: Tinodes sp.
(1 more)

In the Photography Board by Millcreek		3Feb 24, 2015
by PaulRoberts
Capnia umpqua
(2 more)

In the Photography Board by Millcreek		0
Re: Ochrotrichia tenuata
(2 more)

In the Photography Board by Millcreek		1May 10, 2015
by PaulRoberts