CerambycidaeCerambycinaeClytiniXylotrechus

Xylotrechus

Zigzag Longhorn
CerambycinaeClytini EPPO ⚘ Pollinator
W. Palearctic spp.
20
European spp.
23
Body length
8–25 mm
Activity
Diurnal
Flight season
Summer
Overwinters as
larva
Larva type
MRTVE_TV
Biotope
forest-saproxylic
Overview

Xylotrechus

*Xylotrechus* Chevrolat, 1860 — the Zigzag Longhorns — are among the most visually striking cerambycids of the Palearctic, their bodies adorned with pale yellow or white fasciae arranged in bold zigzag patterns against a dark background, an appearance that functions as Batesian mimicry of wasps and ants. With around 60 species across the Palearctic and 5 in Europe, they are most diverse in the eastern part of the region, though several species are familiar inhabitants of western and central European woodlands. Adults are strong fliers and are most readily encountered running with characteristic speed across sun-exposed trunks, log piles, and freshly felled timber during the warm months of Ma…

Seasonal activity

Flight season: Summer

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Green = active months · Orange = peak

Host plants

Primary hosts: oak pine beech

AlnusCarpinusFagusMalusMorusPopulusQuercusSalixUlmusVitis
⚑ Conservation note: A2 — X. altaicus EPPO A2; multiple spp. intercepted at EU ports

External resources

GBIF · Wikidata · Käfer der Welt

Field tip: Na osluněných kmenech a kládách. Cikcak vzor. X. rusticus v dubovém dříví, X. antilope v dubech.