Bug FAQDinoptera collaris
Dinoptera collaris · Order: Coleoptera · Family: Cerambycidae
Source: Wikipedia
Dinoptera collaris is a small beetle about 6 to 9 mm long with bluish-black hairy elytra and a mostly orange-red body. Its larvae live under loose bark and bore into a wide range of deciduous trees, which can harm the trees. Adults are seen from April to August in European and Near-Eastern forests, feeding on pollen of various trees and shrubs.
Source: Wikipedia
How to recognize it
The beetle has bluish-black, hairy wing covers with dense punctures, a nearly spherical orange-red pronotum, long antennae, and an orange-red abdomen.
Source: Wikipedia
Size
It measures between 6 and 9 mm in length.
Source: Wikipedia
Where it lives
It lives in deciduous forests, especially beech woods and hedge rows.
Source: Wikipedia
What it eats
Larvae develop under loose bark of oaks, aspens, apple trees and other deciduous species, feeding on the wood. Adults feed on pollen from plants like valerian, common hawthorn, elderberry, sweet chestnut and European pear.
Source: Wikipedia
Life cycle
The beetle’s life cycle lasts two years, with overwintering and pupation in the following spring.
Source: Wikipedia
When you see it
Adults are active from April through August.
Source: Wikipedia
Where it comes from
It is found across most of Europe and the Near East, including countries such as France, Germany, Italy, Sweden, Turkey and the United Kingdom.
Source: Wikipedia
Lookalikes
It can be confused with Acmaeops marginatus, Acmaeops pratensis or Acmaeops septentrionis.
Source: Wikipedia
More photos
Questions people ask
What trees do the larvae damage?
The larvae bore into the wood of many deciduous trees such as oak, aspen and apple.
Source: Wikipedia
What does Dinoptera collaris look like?
It has bluish-black hairy wing covers, a nearly spherical orange-red pronotum, long antennae and an orange-red abdomen.
Source: Wikipedia
What other beetles might I mistake it for?
It resembles Acmaeops marginatus, Acmaeops pratensis and Acmaeops septentrionis.
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/Dinoptera_collaris
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 2026-10-22.