PlecopteraNemouridae – Spring Stoneflies

Podmosta obscura

This record describes Podmosta obscura (species). Recorded family: Nemouridae. Recorded order: Plecoptera.

Identification and Appearance

Podmosta obscura - Podmosta obscura
Contributed by John F. Carr

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Plecoptera (Stoneflies)
Superfamily
Nemouroidea
Family
Nemouridae (Spring Stoneflies)
Subfamily
Nemourinae
Genus
Podmosta

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

Habitat and Range

Geographic Range

Oregon, Washington

About Stoneflies: the wider group

Order-level background for Plecoptera, the group containing Podmosta obscura. 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.

Explore Plecoptera families and species →

Photos of Podmosta obscura (3)

Podmosta obscura - photo 1
Contributed by John F. Carr
Podmosta obscura - photo 2
Contributed by John F. Carr
Podmosta obscura - photo 3
Contributed by John F. Carr

Photo credits: Contributed by John F. Carr

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

Photo credits: Contributed by John F. Carr. Contributors retain copyright over their individual contributions.