United States, North Dakota, Morton, Northern Plains (D09), Northern Great Plains Research Laboratory NEON (NOGP), Plot NOGP_003 (plot dimensions: 40m x 40m) [Location ID: NOGP_003.basePlot.bet]
Carabid vouchers collected in a pitfall trap deployed for approximatately 2 weeks as per the NEON carabid sampling protocol. Archived in 95% ethanol and pooled across traps from the same plot and sampling dates.
sides of prothorax at least faintly curved with about right hind angles; shoulder tooth strong; little punctuation outside of basal foveae; compared to H. indigens has more pronounced front angles and smaller head; could be H. indigens or H. somnulentus