Cerambycidae › Cerambycinae › Icosiini › Icosium

Icosium

Fig Wood Longhorn

CerambycinaeIcosiini ⚘ Pollinator

W. Palearctic spp.

European spp.

Body length

10–18 mm

Activity

Nocturnal

Flight season

Summer–Autumn

Overwinters as

larva

Larva type

MRTVE_TV

Biotope

forest-saproxylic

Overview

Icosium

*Icosium* Lucas, 1854 is a small genus of three Palaearctic species, with a single representative reaching Europe, inhabiting the western Mediterranean basin from southern Europe across North Africa. These medium-sized longhorn beetles (10–18 mm) are nocturnal in habit, emerging during the warm months from June to September and readily attracted to ultraviolet light. The larvae develop subcortically and into the wood of dead or dying *Quercus*, requiring one to two years to complete development. Adults are anthophilous, visiting flowers for pollen and feeding on bark or sap.

Seasonal activity

Flight season: Summer–Autumn

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Green = active months · Orange = peak

Host plants

Primary hosts: oak

Quercus

⚑ Conservation note: none

External resources

GBIF · Wikidata · Käfer der Welt

Field tip: Nocturnal; attracted to light. Hosts: Quercus. Mediterranean species.

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