Stenocorus
Stenocorus
*Stenocorus* Geoffroy, 1762 comprises slender, elongate longhorns readily recognised by their narrow, parallel-sided body and vivid, often strikingly variable coloration. Adults are strongly diurnal, frequenting flowers of Apiaceae and Rosaceae on warm days at forest edges and in open woodland, where *S. meridianus* is among the most conspicuous early-summer cerambycids. Sexual dimorphism in colour is pronounced: males typically show dark elytra with reddish shoulders, while females tend towards brownish-yellow, though entirely pale males and wholly black females are known. Larvae develop over two to three years in dead and decaying roots of broadleaved trees, principally oaks and maples, in…
Seasonal activity
Flight season: Summer
Green = active months · Orange = peak
Host plants
Primary hosts: oak beech birch
External resources
Field tip: On flowers (Apiaceae, Rosaceae) in forests and margins. Hosts: Acer.