Bug FAQNorthern Sapphire or Emerald
Eulonchus sapphirinus · Order: Diptera · Family: Acroceridae
Eulonchus sapphirinus is a small-headed fly in the family Acroceridae. It has been noted as a potentially important pollinator in some habitats. Adults are among the main insect visitors to Geranium robertianum flowers.
Source: Wikipedia
How to recognize it
It belongs to the small-headed flies (Acroceridae).
Source: Wikipedia
Where it lives
The species may serve as an important pollinator in certain habitats.
Source: Wikipedia
What it eats
Individuals frequently visit Geranium robertianum flowers.
Source: Wikipedia
Where it is found in the US
Recorded in 5 of 51 states and DC. Most records: Washington, California, Oregon, Utah, Nevada.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What flowers do Eulonchus sapphirinus visit?
They are commonly found on Geranium robertianum flowers.
Source: Wikipedia
Same family (Acroceridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Eulonchus_sapphirinus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-28 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-28.