Bug FAQLarge Juniper Xanthonian
Xanthonia vagans · Order: Coleoptera · Family: Chrysomelidae
The large Juniper Xanthonian measures about 3.8 to 5.2 mm long, roughly 0.15 to 0.20 in. Its back is medium to dark brown with faint dark streaks on the wing covers. It lives on juniper plants in a range that includes central Texas, Arizona, and parts of northern Mexico.
Source: Wikipedia
How to recognize it
The beetle’s dorsal color is medium to dark brown. The elytra show vague dark streaks.
Source: Wikipedia
Where it lives
It is associated with juniper plants.
Source: Wikipedia
Where it comes from
Its range extends from central Texas and Arizona in the United States to Sonora, Mexico.
Source: Wikipedia
Where it is found in the US
Recorded in 4 of 51 states and DC. Most records: Texas, Arizona, New Mexico, Oklahoma.
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
How can I recognize a Large Juniper Xanthonian?
Look for a beetle about 4 mm long with a medium-dark brown back and faint dark streaks on the wing covers; it is usually found on juniper plants.
Source: Wikipedia
Where is this beetle found?
It occurs in central Texas and Arizona in the U.S. and reaches into Sonora, Mexico.
Source: Wikipedia
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/Xanthonia_vagans
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.