Scanning electron microscope images of Horologion hubbardi female paratype, voucher CWH-452 (VMNH) A detail of right side of pterothorax, ventral aspect B mesoventrite, ventral aspect C metaventrite, ventral aspect, abdomen removed D detail of humeral region of right elytron, dorsal aspect.

 
 
  Part of: Harden CW, Davidson RL, Malabad TE, Caterino MS, Maddison DR (2024) Phylogenetic systematics of the enigmatic genus Horologion Valentine, 1932 (Coleoptera, Carabidae, Trechinae, Horologionini), with description of a new species from Bath County, Virginia. Subterranean Biology 48: 1-49. https://doi.org/10.3897/subtbiol.48.114404