Pseudostenophylax

Martynov, 1909

northern caddisflies

Species Guides

3

Pseudostenophylax is a of northern caddisflies in the Limnephilidae, containing at least 80 described . The genus was established by Martynov in 1909 with Pseudostenophylax fumosus as the type species. Species are primarily distributed across northern regions of North America and Eurasia, with notable diversity in Japan and alpine regions. Research on Japanese species has revealed strong phylogeographic patterns linked to mountain formation and glacial history.

Pseudostenophylax sparsus (25751720945) by Bob Henricks from Charlottesville, United States. Used under a CC BY-SA 2.0 license.Pseudostenophylax sparsus (25751723265) by Bob Henricks from Charlottesville, United States. Used under a CC BY-SA 2.0 license.

Pronunciation

How to pronounce Pseudostenophylax: /ˌsjuːdoʊˌstɛnəˈfaɪlæks/

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Habitat

Alpine and subalpine aquatic environments. Some inhabit western North American lotic systems.

Distribution

Northern regions of North America and Eurasia. Japanese are distributed across the Japanese archipelago including Hokkaido, Honshu, Shikoku, and Kyushu. Some lineages extend to the Korean Peninsula.

Life Cycle

At least one , Pseudostenophylax edwardsi, is in the field but capable of completing two per year at 15°C in laboratory conditions. Final-instar larvae enter under short-day .

Similar Taxa

  • PhilocascaBoth are limnephilid with western North American ; stages have been described and compared in systematic studies.

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