Elytral characters of Horologion species A H. speokoites holotype, elytra, oblique left lateral aspect B H. hubbardi paratype (CMNH), ditto C H. hubbardi paratype (VMNH), SEM detail of apex of left elytron, ventral aspect D H. hubbardi paratype (VMNH), SEM photo of right elytron, dorsal aspect E H. hubbardi paratype (VMNH), SEM detail of right elytron (area indicated by black box in D). Black arrows: discal setae, white arrows: plica.

 
 
  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