Bug FAQCompsocerus violaceus
Compsocerus violaceus · Order: Coleoptera · Family: Cerambycidae
Source: Wikipedia
Compsocerus violaceus is a long-horn beetle found in southern Brazil, northern Argentina and Uruguay. Adults feed on fruits, flowers and tree sap, while larvae tunnel under bark and eat the wood, harming the host trees. The larvae develop for about ten months before emerging as adults, and the species is considered an agricultural pest of cultivated trees.
Source: Wikipedia
How to recognize it
Compsocerus violaceus belongs to the beetle family Cerambycidae.
Source: Wikipedia
Is it a pest in the house?
It is regarded as an agricultural pest that attacks several cultivated tree species.
Source: Wikipedia
Where it lives
It lives in South America, especially in southern Brazil, northern Argentina and Uruguay.
Source: Wikipedia
What it eats
Adults eat fruits, flowers and sap that leaks from injured tree trunks. Larvae make galleries under bark in branches 2 to 6 cm wide and feed on the wood.
Source: Wikipedia
Life cycle
After hatching, larvae tunnel under bark and feed on wood for about ten months before becoming adults.
Source: Wikipedia
Where it comes from
Its native range is southern Brazil, northern Argentina and Uruguay in South America.
Source: Wikipedia
Where it is found in the US
Recorded in 1 of 51 states and DC. Most records: Washington.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
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Questions people ask
What plants does Compsocerus violaceus damage?
Its larvae tunnel into and feed on the wood of cultivated trees, harming the host plants.
Source: Wikipedia
Where is Compsocerus violaceus found?
It occurs in southern Brazil, northern Argentina and Uruguay in South America.
Source: Wikipedia
What do adult beetles eat?
Adults feed on fruits, flowers and sap from injured tree trunks.
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 maculataSources
- Wikipedia: https://en.wikipedia.org/wiki/Compsocerus_violaceus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.