Bug FAQOctotoma marginicollis
Octotoma marginicollis · Order: Coleoptera · Family: Chrysomelidae
Octotoma marginicollis is a leaf beetle in the family Chrysomelidae. It occurs in parts of the United States and Mexico, including Arizona, California, New Mexico, Texas, Utah, Coahuila, Guanajuato, Jalisco, Morelos, and Tamaulipas. Adults have been found on several plant species such as Fraxinus, Baccharis, Brickellia, Viguiera, and Monarda, and they also feed on Perezia thurberi.
Source: Wikipedia
How to recognize it
Octotoma marginicollis belongs to the leaf-beetle family Chrysomelidae.
Source: Wikipedia
Where it lives
The beetle lives in Central and North America, recorded from several U.S. states and Mexican states.
Source: Wikipedia
What it eats
It has been observed feeding on the plant Perezia thurberi.
Source: Wikipedia
Where it comes from
Its range includes the United States and Mexico in North and Central America.
Source: Wikipedia
Where it is found in the US
Recorded in 3 of 51 states and DC. Most records: Arizona, Texas, New Mexico.
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
Same family (Chrysomelidae)
Spotted Cucumber BeetleDiabrotica undecimpunctataDamages trees, gardens or crops
Bean WeevilAcanthoscelides obtectusDamages trees, gardens or crops
Cowpea WeevilCallosobruchus maculatusDamages trees, gardens or crops
Swamp Milkweed Leaf BeetleLabidomera clivicollisDamages trees, gardens or crops
Alder Leaf BeetleAgelastica alniDamages trees, gardens or crops
Dogbane Leaf BeetleChrysochus auratusSources
- Wikipedia: https://en.wikipedia.org/wiki/Octotoma_marginicollis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-29 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-29.