Sampling site of Formica obscuripes nests in Big Cottonwood Canyon, Utah.

 
 
  Part of: Furness DC, Tan E, Longino JT (2025) Overwintering by the western thatch ant, Formica obscuripes (Hymenoptera, Formicidae). Contributions to Entomology 75(1): 229-233. https://doi.org/10.3897/contrib.entomol.75.e144856