As far as I know, T. huroniana is only known in Wisconsin from Door County, where it sneaks into the state from the northeast. The two species do look similar, but if you can look at the hind wings, they are patterned distinctly differently, and T. maritima usually has a much brighter wing. The hind tibiae in T. maritima are often yellow, but are also often orange or red, while they are never reddish in T. huroniana (always yellowish, maybe leaning a bit toward brown sometimes). The antennae are longer in T. maritima, and usually much less distinctly ringed with light and dark. However, when comparing antennae, compare males to males and females to females, because males usually have longer antennae than females in all of the Trimerotropis species.

Both species are varied in color pattern, but T. huroniana typically has stronger, broader, and less "salt and pepper" looking dark cross bands on the tegmina (front wings) and hind femora, and the cross bands are more likely to cross right over the top of the folded wings.

Moved from Grasshoppers, Crickets, Katydids.

I would bet on T. maritima, but since I've never seen huroniana I'm going to let David make the call.

Moved from ID Request.