Great capricorn beetle

Cerambyx cerdo

The larvae of this beetle can spend up to five years tunneling through a single tree before emerging as adults.

Scientific name
Cerambyx cerdo
Taxonomy
Animalia › Arthropoda › Insecta › Coleoptera › Cerambycidae › Cerambyx
IUCN Red List status
Vulnerable
Population trend
decreasing
Biome
forest
Habitat
Sun-exposed old-growth deciduous forests, particularly those dominated by ancient oak trees.
Diet
Larvae are xylophagous, boring into heartwood; adults feed on fermenting tree sap and ripe fruit.
Range
Europe, North Africa, Caucasus, Asia Minor
Size
41-55 mm in body length, with antennae reaching up to 100 mm.
Lifespan
3-5 years (including larval stage); adults live 3-5 weeks.
Active
crepuscular
Threats
Loss of habitat, intensive forestry practices, and the removal of dying or dead wood (sanitary felling).
Safe to approach?
Harmless. Though its large mandibles can deliver a mechanical pinch if handled roughly, it possesses no venom or sting. Best observed resting on sun-warmed oak bark; maintain a respectful distance to avoid startling it into flight.

The Cerambyx cerdo , commonly known as great capricorn beetle , is a species of beetle in family Cerambycidae. It is widespread in Algeria, Armenia, Austria, Azerbaijan, Belarus, Bulgaria, Croatia, the Czech Republic, France, Georgia, Germany, Hungary, Iran, Italy, Moldova, Morocco, Poland, Spain, Sweden, Switzerland, Tunisia, Turkey, Ukraine, and the United Kingdom.

Photo: Gilles San Martin, CC-BY-SA, via iNaturalist

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