Xylotrechus

Chevrolat, 1860

tiger longhorned beetles

Species Guides

Xylotrechus aceris(Gallmaking Maple Borer)
Xylotrechus albonotatus
Xylotrechus annosus(Grizzled Zebra Borer)
Xylotrechus colonus(rustic borer)
Xylotrechus convergens
Xylotrechus hovorei
Xylotrechus insignis(Willow Borer)
Xylotrechus integer
Xylotrechus lengi

Xylotrechus is a of longhorned beetles in the Cerambycidae containing approximately 200 described . Members of this genus are characterized by their elongated bodies, long , and often striking color patterns. The genus includes economically significant species such as Xylotrechus chinensis (tiger longhorned beetle), which is a pest of mulberry and other fruit trees, and Xylotrechus pyrrhoderus, a grapevine borer. Several species have been documented as attracted to fermenting baits, making them accessible to collectors using molasses-beer or wine traps.

Xylotrechus quadrimaculatus by (c) skitterbug, some rights reserved (CC BY), uploaded by skitterbug. Used under a CC-BY license.

Xylotrechus annosus by (c) DITF Observations, some rights reserved (CC BY), uploaded by DITF Observations. Used under a CC-BY license.

Xylotrechus annosus by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.

Pronunciation

How to pronounce Xylotrechus: /zaɪloʊˈtrɛkəs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

vary by but include deciduous and coniferous forests, woodlands, and agricultural settings. Xylotrechus colonus has been documented in dry post oak woodland and dolomite glade interfaces in Missouri. Xylotrechus chinensis occurs in regions with plants including mulberry, apple, pear, and grapevine. The subgenus Kostiniclytus, including X. alakolensis, occurs in the Alakol Nature Reserve of East Kazakhstan.

Distribution

The has a wide distribution across the Holarctic region. Xylotrechus chinensis is native to East Asia (China, Japan, Korea, Taiwan) and has been introduced to Europe (France, Greece, Spain). Xylotrechus altaicus occurs in Europe (Austria, Russia) and Asia (Mongolia). Xylotrechus colonus is documented from Missouri, USA. X. alakolensis is known from East Kazakhstan, approximately 1,000 km from other members of its subgenus.

Host Associations

Morus - primary for Xylotrechus chinensis
Malus - secondary for Xylotrechus chinensis
Pyrus - secondary for Xylotrechus chinensis
Vitis vinifera - for Xylotrechus chinensis and X. pyrrhoderus
Larix - for Xylotrechus altaicus
Quercus - ASSOCIATEDXylotrechus colonus collected near oak woodlands

Behavior

of some are attracted to fermenting baits including molasses-beer mixtures and red wine, a trait documented for Xylotrechus colonus. Adults of Xylotrechus chinensis have been observed flying to stressed or dying trees and searching for mates on trunks. Members of the subgenus Kostiniclytus exhibit distribution patterns.

Human Relevance

Xylotrechus chinensis (tiger longhorned beetle) is an economically significant pest of mulberry and other fruit trees, with invasion risk assessed for Ukraine. Xylotrechus pyrrhoderus causes damage to grapevines. Xylotrechus arvicola damages grapevine branches, affecting wood strength. Several are collected by entomologists using fermenting traps for study and documentation.

Similar Taxa

ClytusBoth belong to tribe Clytini and share similar body forms with banded or patterned ; Xylotrechus typically has more extensive and different antennal proportions
PlinthocoeliumBoth are attracted to fermenting baits and occur in similar ; Plinthocoelium is larger with metallic coloration and distinct pronotal shape
NeoclytusBoth in tribe Clytini with similar color patterns; Neoclytus has distinct scutellar markings and different antennal club structure