Ephemerella invaria
(Walker, 1853)
Sulphur Dun
Ephemerella invaria, commonly known as the sulphur dun, is a of spiny crawler mayfly in the Ephemerellidae. It occurs in headwater streams across eastern North America, from southeastern and northern Canada through the eastern United States. The species has been studied for genetic impacts associated with deforestation of its stream . As a member of the Ephemerellidae, it belongs to a group of mayflies characterized by distinctive spiny or tuberculate body features.
Pronunciation
How to pronounce Ephemerella invaria: /ˌɛfəˌmɛˈrɛlə ɪnˈvɛəriə/
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Identification
The sulphur dun can be distinguished from similar mayflies by its classification within the 'spiny ' group of Ephemerellidae, which possess characteristic spines or on the body. Specific diagnostic features for E. invaria relative to are not documented in available sources.
Images
Habitat
Headwater streams; specifically associated with forested stream environments that have experienced deforestation impacts in studied .
Distribution
Southeastern and northern Canada; eastern United States. GBIF records confirm presence in Vermont and broader Nearctic region.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- The Lepidopteran Life Aquatic
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- Loss of genetic diversity in the North American mayfly Ephemerella invaria associated with deforestation of headwater streams