Map of North American cricket collecting locations. Allopatric populations of Gryllus firmus are in yellow, G. pennsylvanicus are in teal, G. thinos populations are in purple, and sympatric G. firmus and G. pennsylvanicus populations are in red. The size of the circle corresponds to the sample size for each location. A. Entire range of collection locations in the United States and Canada; B. Enlarged area of densely sampled locations in northeast, central, and southeast United States.

  Part of: Byerly AR, Jenck C, Goetz ARB, Weissman DB, Gray DA, Ross CL, Maroja LS, Larson EL (2023) Geographic variation in phenotypic divergence between two hybridizing field cricket species. Journal of Orthoptera Research 32(2): 189-200.