Scanning electron micrographs of the forebody of Horologion hubbardi A head of voucher CWH-452, dorsal aspect, clypeal setae indicated by white arrows B prosternum of non-type specimen, posterior aspect (head, pronotum and most of leg segments removed) C forebody of voucher CWH-452, ventral 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