Oemopteryx
Klapálek, 1902
winter stoneflies, willowflies
Species Guides
2- Oemopteryx contorta(Dark Willowfly)
- Oemopteryx glacialis(Canadian willowfly)
Oemopteryx is a of winter stoneflies in the Taeniopterygidae, established by Klapá in 1902. The genus comprises approximately six described distributed primarily in the Nearctic region, with some records from Europe. Species are commonly known as willowflies, including the dark willowfly (O. contorta) and Canadian willowfly (O. glacialis). Recent taxonomic work has described additional Nearctic species from the southeastern United States using integrated morphological and molecular data.
Pronunciation
How to pronounce Oemopteryx: /iːˌmɒptərɪks/
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Identification
and larvae can be distinguished from other Taeniopterygidae using revised keys presented in Baumann & Kondratieff (2023), which incorporate scanning electron microscopy details and COI barcode variation. The is characterized by specific morphological features in both life stages, though these require microscopic examination for definitive identification.
Images
Distribution
Nearctic region, with primary diversity in North America; records from southwestern Europe (Austria, Bulgaria), Alberta (Canada), and Alabama (USA). Two have been described from the southeastern Nearctic region.
Seasonality
active in winter, consistent with the "winter stoneflies" applied to Taeniopterygidae.
Life Cycle
Development includes and larval stages; larvae are aquatic and adults are terrestrial. Specific developmental details are not documented in available sources.
Similar Taxa
- Other Taeniopterygidae genera and larval keys to Oemopteryx are presented alongside revised keys to for Nearctic Taeniopterygidae, indicating close morphological similarity requiring careful differentiation.
More Details
Taxonomic revision
A 2023 monographic revision in Zootaxa reviewed all Nearctic using color images, SEM photomicrographs, COI barcode variation, and distributional data, describing two new species from the southeast Nearctic region.
Species diversity
Approximately six described : O. contorta (dark willowfly), O. fosketti, O. glacialis (Canadian willowfly), O. leei, O. loewii, and O. vanduzeea.