Figure 2. 

Distribution of Formica obscuripes workers with respect to depth in an over-wintering colony. The distribution may be truncated, with an unexcavated portion of the colony below 110 cm.

  
  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