Support for and against previously proposed placements of Horologion. Grey: clade present in maximum likelihood tree, SBS less than 90%, UFBoot less than 95% and/or SH-aLRT less than 80. Red: clade absent in maximum likelihood tree, most-supported contradictory clade with SBS 90% or greater, UFBoot 95% or greater and SH-aLRT 80 or greater. Pink: clade absent in maximum likelihood tree, most-supported contradictory clade with SBS less than 50%, UFBoot less than 95% and/or SH-aLRT less than 80. There were not sufficient sequences available for COI and Topo from our sampled Psydrini.

 
 
  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