PlecopteraCapniidae – Small Winter Stoneflies

Capnia umpqua

This record describes Capnia umpqua (species). Recorded family: Capniidae. Recorded order: Plecoptera.

Identification and Appearance

Capnia umpqua - Capnia umpqua
Contributed by v belov; Additional contributions by Phillip Harpootlian

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Plecoptera (Stoneflies)
Superfamily
Nemouroidea
Family
Capniidae (Small Winter Stoneflies)
Genus
Capnia

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

CA-OR map

Additional species information

Species notes from the sources

Etymology: Capnia umpqua Frison 1942

About Stoneflies: the wider group

Order-level background for Plecoptera, the group containing Capnia umpqua. Species-specific details appear above.

Group overview

Plecoptera (stoneflies) includes ~3,700 described species. Stonefly nymphs are among the most pollution-sensitive aquatic insects - they require cold, clean, well-oxygenated running water to survive.

Ecological role of the group

Stonefly nymphs are important shredders of leaf litter in streams, breaking down organic material and making nutrients available to other organisms. Adults are a key food source for trout and are widely imitated in fly fishing.

Economic and practical significance of the group

Stoneflies are considered the gold standard bioindicator for water quality monitoring worldwide. Their absence from a stream is one of the strongest signals of pollution or environmental degradation.

Recorded sources for this group: EPA, freshwater ecology research, fly fishing industry. Imported estimates may describe particular regions or reporting periods.

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Photos of Capnia umpqua (5)

Capnia umpqua - photo 1
Contributed by v belov; Additional contributions by Phillip Harpootlian
Capnia umpqua - photo 2
Contributed by v belov; Additional contributions by Phillip Harpootlian
Capnia umpqua - photo 3
Contributed by v belov; Additional contributions by Phillip Harpootlian
Capnia umpqua - photo 4
Contributed by v belov; Additional contributions by Phillip Harpootlian
Capnia umpqua - photo 5
Contributed by v belov; Additional contributions by Phillip Harpootlian

Photo credits: Contributed by v belov; Additional contributions by Phillip Harpootlian

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by v belov; Additional contributions by Phillip Harpootlian. Contributors retain copyright over their individual contributions.