Tragosoma desparium

Tragosoma depsarium is a species of longhorn beetle. They are 16-35 mm long and the larvae mostly feed on decaying wood of dead and fallen trunks. Adults are nocturnal and emerge from the wood June-August. 

Order: Coleoptera
Family: Cerambycidae
Species: Tragosoma depsarium

Photograph: © 2019 RKD Peterson
Date of Photograph: 17 August 2019
Location: Montana, Gallatin Co.