Bug FAQRed-femured Milkweed Borer
Tetraopes femoratus · Order: Coleoptera · Family: Cerambycidae
Also called: Milkweed Borer, Red-femured Milkweed Beetle
Source: Wikipedia
The red-femured milkweed borer is a beetle in the long-horn family Cerambycidae. It lives in Mexico and the United States and eats a variety of milkweed species.
Source: Wikipedia
How to recognize it
It is a beetle belonging to the family Cerambycidae.
Source: Wikipedia
Where it lives
It is found in Mexico and the United States.
Source: Wikipedia
Where it comes from
Its native range includes Mexico and the United States.
Source: Wikipedia
Where it is found in the US
Recorded in 30 of 51 states and DC. Most records: Colorado, Utah, Idaho, Washington, Nevada, Oregon, California, Montana.
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 is the red-femured milkweed borer found?
It occurs in Mexico and the United States.
Source: Wikipedia
Same family (Cerambycidae)
House LonghornHylotrupes bajulusCan damage your home
Asian Longhorned BeetleAnoplophora glabripennisDamages trees, gardens or crops
Red Milkweed BeetleTetraopes tetrophthalmus
White-spotted SawyerMonochamus scutellatusCan damage your home
Red Pine Longhorn BeetleStictoleptura rubra
Spotted Longhorn BeetleRutpela maculataDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Tetraopes_femoratus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.