Compsocerus violaceus

Compsocerus violaceus · Order: Coleoptera · Family: Cerambycidae

Damages trees, gardens or crops. It damages cultivated trees and other woody plants.

Source: Wikipedia

Compsocerus violaceus
Photo: Alan demian benadia, CC BY

The beetle lives in southern Brazil, northern Argentina and Uruguay. Adults feed on fruit, flowers and tree sap, while larvae tunnel under bark and eat the wood of small branches. It is considered an agricultural pest that attacks several cultivated tree species.

Source: Wikipedia

How to recognize it

Compsocerus violaceus belongs to the long-horn beetle family.

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 is found in South America, especially in southern Brazil, northern Argentina and Uruguay.

Source: Wikipedia

What it eats

Adult beetles eat fruits, flowers and sap that leaks from injured tree trunks. Larvae create galleries under bark on branches 2 to 6 cm thick and feed on the wood.

Source: Wikipedia

Life cycle

After hatching, larvae spend about ten months feeding inside the wood before emerging as adults.

Source: Wikipedia

Where it comes from

Its native range includes southern Brazil, northern Argentina and Uruguay.

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

Questions people ask

What trees does this beetle damage?

It attacks several cultivated tree species, making it a crop pest.

Source: Wikipedia

What do the larvae feed on?

Larvae tunnel under bark and eat the wood of small branches.

Source: Wikipedia

Where is Compsocerus violaceus found?

It occurs in southern Brazil, northern Argentina and Uruguay.

Source: Wikipedia

Same family (Cerambycidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Compsocerus_violaceus

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.