Moselia infuscata

(Claassen, 1923)

Hairy Needlefly

Moselia infuscata, commonly known as the hairy needlefly, is a of rolled-winged in the Leuctridae. It was originally described as Leuctra infuscata by Claassen in 1923. The species is known from western North America, with records from British Columbia to California.

Pronunciation

How to pronounce Moselia infuscata: /moʊˈziːliə ˌɪnfəˈskeɪtə/

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Identification

As a member of Leuctridae (rolled-winged stoneflies), M. infuscata likely exhibits the -diagnostic trait of wings rolled flat around the at rest, rather than folded roof-like as in most stoneflies. The specific epithet 'infuscata' (darkened) may refer to coloration, though this is not confirmed in available sources. Distinction from other Moselia and western Leuctridae would require examination of male genitalia and other fine morphological characters.

Distribution

Western North America: recorded from British Columbia, Washington, Oregon, California, and Nevada.

Ecological Role

As a (Plecoptera), M. infuscata likely functions as a - in freshwater , contributing to nutrient cycling in stream . Stonefly larvae are important prey for fish and other aquatic .

Similar Taxa

  • Other Moselia speciesCongeneric in western North America require careful morphological examination, particularly of male genitalia, for reliable identification.
  • Other Leuctridae (rolled-winged stoneflies)Share the diagnostic wing posture and general body form; -level identification within this is challenging and typically requires knowledge.

More Details

Taxonomic history

Originally described in the Leuctra by Claassen (1923), later transferred to Moselia. The basionym Leuctra infuscata reflects this taxonomic change.

Sources and further reading