Bug FAQLittle Blue-winged Olive
Baetis tricaudatus · Order: Ephemeroptera · Family: Baetidae
The little blue-winged olive is a small minnow mayfly belonging to the family Baetidae. It lives in both Central America and North America. In North America its range covers all of Canada, the United States, and Mexico.
Source: Wikipedia
How to recognize it
Baetis tricaudatus is a small minnow mayfly in the family Baetidae.
Source: Wikipedia
Where it comes from
In North America it occurs throughout Canada, the United States, and Mexico.
Source: Wikipedia
Where it is found in the US
Recorded in 33 of 51 states and DC. Most records: Vermont, California, Colorado, Utah, Oregon, Wyoming, Washington, Tennessee.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
Where does the little blue-winged olive live?
It lives in Central America and across Canada, the United States, and Mexico.
Source: Wikipedia
Same family (Baetidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Baetis_tricaudatus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.