Bug FAQOrange Spur Fly
Teuchocnemis bacuntius · Order: Diptera · Family: Syrphidae
They are orange, have a swollen hind femur, and males show a ventral spur on the hind tibia. The species occurs in the eastern half of the United States and is considered rare.
Source: Wikipedia
Life cycle
The larval stage of this species is currently unknown.
Source: Wikipedia
Where it comes from
They are native to the eastern half of the United States.
Source: Wikipedia
Where it is found in the US
Recorded in 23 of 51 states and DC. Most records: Maryland, Virginia, North Carolina, Arkansas, Oklahoma, Missouri, Ohio, Texas.
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
What does the Orange Spur Fly look like?
It is orange, has a swollen hind femur, and the male’s hind tibia has a ventral spur.
Source: Wikipedia
Where is the Orange Spur Fly found?
It occurs in the eastern half of the United States.
Source: Wikipedia
Same family (Syrphidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Teuchocnemis_bacuntius
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.