Monochamus

Monochamus

*Monochamus* Dejean, 1821 — the Pine Sawyers — are among the most conspicuous and ecologically significant longhorn beetles of the Northern Hemisphere, with 35 Palaearctic species and 6 occurring in Europe. These robust, cylindrical beetles (10–35 mm) are clad in mottled grey pubescence that renders them remarkably cryptic against conifer bark. Adults are most active from May to September and are strongly sexually dimorphic: males carry antennae reaching two to four times the body length, among the longest relative proportions found in any European cerambycid. The genus carries outsized forestry importance as the primary vector of the pinewood nematode *Bursaphelenchus xylophilus*, placing s…

Seasonal activity

Flight season: Summer–Autumn

Green = active months · Orange = peak

Host plants

Primary hosts: pine birch

External resources

GBIF · Wikidata · Käfer der Welt

Field tip: Na čerstvě pokácených jehličnanech (V-IX). M. galloprovincialis vektor háďátka borového — karanténní význam!