Caenis hilaris
(Say, 1839)
Caenis hilaris is a of small square-gilled in the Caenidae. It is found in North America. As a member of the order Ephemeroptera, it shares the characteristic of mayflies, with aquatic nymphal stages and short-lived winged .

Pronunciation
How to pronounce Caenis hilaris: /ˈkaɪ.nɪs hɪˈlɑː.rɪs/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Images
Distribution
North America (Nearctic region)
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- Stinking Here and There: Invasive Stink Bug Goes From Crops to Homes
- Bug Eric: The Bagrada Bug
- New Article Reveals Life History Details of the Bagrada Bug
- Stink Bugs: New IPM Guide for Midwestern Corn, Soybean Growers
- Bug Eric: The Mayfly Analogy
- Unlikely wasp enemy of a serious alien pest in North America named Idris elba | Blog