Came to light. Looks like the same species as this pair shot in the same county five days earlier.

Of the eight Dysdercus species listed at nearctica.com, it doesn't look like the three already in the guide, and it's not D. concinnus. Could it be a variation of D. bimaculatus? I couldn't find photos of obliquus or obscuratus, but the description of mimus here doesn't match this specimen.