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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Dorsal view of a Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from the Yakima River in Washington
Some characteristics from the microscope images for the tentative species id: The postero-lateral projections are found only on segment 9, not segment 8. Based on the key in Jacobus et al. (2014), it appears to key to Neoleptophlebia adoptiva or Neoleptophlebia heteronea, same as this specimen with pretty different abdominal markings. However, distinguishing between those calls for comparing the lengths of the second and third segment of the labial palp, and this one (like the other one) only seems to have two segments. So I'm stuck on them both. It's likely that the fact that they're immature nymphs stymies identification in some important way.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Caddisfly Family Philopotamidae

Emergence and egg-laying behaviors vary widely within this family of net-spinning caddisflies. Some species, like Dolophilodes distinctus, have very unusual quirks. That species and Chimarra aterrima are two of the most important in this family.

Where & when

In 833 records from GBIF, adults of this family have mostly been collected during June (25%), July (19%), May (18%), August (13%), September (8%), and April (6%).

In 260 records from GBIF, this family has been collected at elevations ranging from 26 to 10322 ft, with an average (median) of 2280 ft.

Family Range

Larva & pupa biology

Shelter type: Very fine-meshed nets

Specimens of the Caddisfly Family Philopotamidae

1 Adult
1 Male Adult
1 Female Adult
5 Larvae

Discussions of Philopotamidae

Emerger pictures anyone???
5 replies
Posted by Hellgie on Mar 30, 2010 in the genus Chimarra
Last reply on Apr 9, 2018 by Gazzer
I would like to see a picture of an emerging Chimarra or a pupa stage before emerging if anyone has one. I am baffled and curious to how and when they change from a yellow/orange larva to a black adult fly. Also, what would be a good emerger pattern for this fly? Lafontaine emerger in what color?
ovipositing?
6 replies
Posted by Btopbuckeye on Mar 4, 2015 in the genus Chimarra
Last reply on Mar 6, 2015 by Crepuscular
I had a large swarm of black sedges in a size 16 ovipositing today.the females hadvblack wings and body with a green egg sack was just wondering if that is this genus or something totally different
Pupa color?
6 replies
Posted by Frankcoz on Mar 27, 2008 in the genus Chimarra
Last reply on Apr 5, 2012 by Entoman
Seems like dead drifting the pupa pattern during the emergence time is a good way to fish this before the adults are on the water.

Does the pupa retain the orange color of the larva or do they have the color of the adult?
bright green?
1 replies
Posted by Phishheaduj on Jan 12, 2009 in the genus Chimarra
Last reply on Jan 12, 2009 by Taxon
i recently came across with a bright green one of these. Is that the same or a completely different species?

Start a Discussion of Philopotamidae

References

Caddisfly Family Philopotamidae

Taxonomy
Genus in Philopotamidae: Chimarra, Dolophilodes, Wormaldia
2 genera (Fumonta and Sisko) aren't included.
Family Range
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