Habitat of species of Horologion A surface habitat at Williams Cave, Bath Co., VA B C. Harden (yellow helmet) and T. Malabad (red helmet) in microhabitat of H. hubbardi voucher CWH-452 in Williams Cave C C. Harden examining live H. hubbardi holotype in Williams Cave D live holotype male of H. hubbardi on surface of drip pool in Williams Cave E surface habitat at Arbuckle Cave, Greenbrier Co., WV F T. Malabad examining flowstone in Arbuckle Cave. Photo credit: C. Harden (A, E), K. Kosič Ficco (B–D), M. Miller (F).

 
 
  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