Pteronarcys biloba
Newman, 1838
Knobbed Salmonfly
Pteronarcys biloba, known as the knobbed salmonfly, is a in the Pteronarcyidae. It is one of the largest in North America. The species inhabits clean, cold freshwater streams and rivers. are recognized by their large size and distinctive wing venation.
Pronunciation
How to pronounce Pteronarcys biloba: /ˌtɛrəˈnɑrsɪs baɪˈloʊbə/
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Images
Habitat
Clean, cold freshwater streams and rivers with well-oxygenated water.
Distribution
North America: recorded from Alabama, Connecticut, Georgia, Kentucky, and Maine.
Similar Taxa
- Pteronarcys dorsataBoth are large Pteronarcys ; P. biloba distinguished by bilobate pronotal characteristics as implied by specific epithet
- Other Pteronarcyidae members share large body size and aquatic nymphal stages; -level identification requires examination of genitalia and wing characteristics