Monochamus griseoplagiatus is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1858. This species is known from Sierra Leone and Gabon.BioLib.cz - Monochamus griseoplagiatus. Retrieved on 8 September 2014.

Subspecies Monochamus griseoplagiatus griseoplagiatus Thomson, 1858 Monochamus griseoplagiatus leonensis (Dillon & Dillon, 1961)

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