Alydus genus
family: Broad-headed Bugs
Missouri Gulch, Gunnison County, CO
8/26/2013

Alydus eurinus
family: Broad-headed Bugs
near Huron Peak trailhead, Chaffee County, CO
8/19/2022

Alydus scutellatus
family: Broad-headed Bugs
Costilla County, CO
8/29/2013