Trimerotropis verruculata verruculata: Vickery & Kevan, 1983: 1056.
Trimerotropis verruculata: Vickery, 1984: 25.
Remarks. This species is not found in Alaska and Yukon, in the Northwest Territories it only found along the Mackenzie River and Great Bear Lake. The nominotypical subspecies is replaced in southern Canada and the northwestern United States by T. v. suffosa Scudder, 1876. This species prefers exposed rocky or gravelly places.