Troutnut.com User Arellamana
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Arellamana's Favorite Troutnut.com Pictures
There's a stonefly nymph in the bottom right corner of this picture, but what's really interesting is those white blotches. They're pretty common in my Wisconsin home river river, stuck flat onto the rocks--lots of rocks have a speckled look as a result. They are microcaddis cases, made by larvae of the caddisfly family
Hydroptilidae. These are made by larvae of the subfamily Leucotrichiinae, most likely the genus
Leucotrichia. They spin little flat oval cases of silk tight and immobile against the rocks.
In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis).
Date AddedJun 5, 2007
CameraPENTAX Optio WPi
Date AddedJun 5, 2007
CameraPENTAX Optio WPi
Date AddedOct 4, 2006
CameraPENTAX Optio WPi
Here's the head of a sea lamprey which migrated up the Delaware River to spawn.
Date AddedJun 5, 2007
CameraPENTAX Optio WPi
These are glossosomatids, Jason. They are probably
Glossosoma nigrior, though it is possible that we are looking at mixed species. The ones to the right with their aggregate of similar sized grains are classic
Glossosoma, while the ones to the left with the large anchor pebbles could possibly be
Agapetus. Regardless, they're all commonly referred to as saddle case makers.
In this picture: Caddisfly Family Glossosomatidae (Saddle-case Makers).Date AddedJul 1, 2006
CameraPENTAX Optio WPi
This is a close-up underwater view of a
stillborn (Stillborn: In fly fishing, a stillborn insect is one which got stuck in its nymphal or pupal shuck during emergence and floats helplessly on the surface instead of flying away. It is a specific class of cripple, although it is sometimes used interchangeably with that term.) Ephemerella subvaria (Henrickson) female dun.
In this picture: Mayfly Species Ephemerella subvaria (Hendrickson).Date AddedApr 22, 2006
CameraPENTAX Optio WPi