IUCN threat status:

Not evaluated

Comprehensive Description

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General Description

Moderate to large size (13-27 mm) with shinny black integument. Relatively hairless, but if hair present usually brownish. Antennae extending 6 segments or more beyond elytra in males and only 2-3 segments beyond the elytra in females. Lateral projections of pronotum large and blunt. Scutellum covered in white hairs. Females are larger than males (not including antennae) and elytra covered in patches of white hair. The subspecies Monochamus s. scutellatus is characterized by metallic looking integument and reddish legs. The other subspecies, Monochamus s. oregonensis, is distinguished by lacking metallic looking integument, females with white patches on antennae and lacking hairs on elytra, and legs black. (Linsley and Chemsak, 1984; Yanega, 1996). Royal Alberta Museum page

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Source: University of Alberta Museums

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