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Pteronarcys californica

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

Caddisfly Genus Neophylax (Autumn Mottled Sedges)

In his tables in Caddisflies, Gary LaFontaine ranks this as the fourth most important genus in the Pacific Northwest, where the main species are Neophylax rickeri and Neophylax splendens, but other species may be important across the country. Swisher and Richards in Selective Trout say that Neophylax fuscus is very important in the Midwest.

Where & when

Time of year : Fall

Neophylax caddisflies emerge in concentrated numbers in the fall because they enter diapause during the summer, which synchronizes their emergence to within three weeks on a given stretch of stream.

Hatching behavior

Time of day : Daytime

Habitat: Riffles

They emerge in the surface film.

Egg-Laying behavior

The ovipositing behavior of this genus is not well-documented, but what is known varies by species.

Specimens of the Caddisfly Genus Neophylax

1 Adult
Neophylax (Autumn Mottled Sedges) Caddisfly Adult
This large caddisfly looks really neat close-up.
3 Larvae

2 Underwater Pictures of Neophylax Caddisflies:

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» Family
» Genus Neophylax (Autumn Mottled Sedges)
Species in Neophylax
Neophylax concinnusAutumn Mottled Sedge00
Neophylax fuscusSmall Dot-Wing Sedge00
Neophylax rickeriBrown Dot Sedge00
Neophylax splendensAutumn Mottled Sedge00
21 species (Neophylax acutus, Neophylax aniqua, Neophylax atlanta, Neophylax auris, Neophylax ayanus, Neophylax consimilis, Neophylax delicatus, Neophylax etnieri, Neophylax mitchelli, Neophylax nacatus, Neophylax occidentis, Neophylax oligius, Neophylax ornatus, Neophylax ottawa, Neophylax securis, Neophylax sinuatus, Neophylax slossonae, Neophylax smithi, Neophylax stolus, Neophylax toshioi, and Neophylax wigginsi) aren't included.
Genus Range
Common Name
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