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> > Sialis sp.

Millcreek has attached these 4 pictures to aid in identification. The message is below.
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MillcreekDecember 1st, 2016, 12:12 pm
Healdsburg, CA

Posts: 299
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.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
TaxonDecember 2nd, 2016, 3:05 pm
Site Editor
Plano, TX

Posts: 1272
Very cool, Mark. I believe larvae are also found in lakes and ponds.
Roger Rohrbeck
www.FlyfishingEntomology.com
MillcreekDecember 2nd, 2016, 6:03 pm
Healdsburg, CA

Posts: 299
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.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
TaxonDecember 2nd, 2016, 8:00 pm
Site Editor
Plano, TX

Posts: 1272
Mark-

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

Posts: 271
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: 910
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.

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