Parapsyche extensa Denning, 1949:40

King's Creek parapsyche caddisfly



Taxonomy & Nomenclature



Conservation Status

Last record: 1947

Rediscovered in 2013 (Givens, 2014, 2015)


"Extensive collecting in LVNP in 2011 and 2012 did not yield specimens of adults or larvae of P. extensa from other streams within the Park. However, in 2013, adults and larvae were collected from several small tributaries of King’s Creek. In 2013, larvae were also collected from a small creek in the Hat Creek drainage, about 1.6 km up the trail to Paradise Meadow, LVNP (Givens 2014)."

(Givens, 2015)



California, USA


Biology & Ecology










Original scientific description:

Denning, D. G. (1949). New species of Nearctic caddis flies. Bulletin of the Brooklyn Entomological Society 44(2): 37-48.


Other references:

Givens, Donald R. (2014). An annotated list of caddisflies (Trichoptera) collected in Lassen Volcanic National Park, California, U.S.A. during 2011–2013. Entomological News 124(3): 153-175.

Givens, Donald R. (2015). Parapsyche species (Trichoptera: Hydropsychidae: Arctopsychinae) of western North America. Zootaxa 4057(4): 451-489. [Abstract]



Thanks to Brian Acord (California Department of Fish and Wildlife) for bringing the rediscovery of Parapsyche extensa to my attention.


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