Taxonomic review of New World Tachyina (Coleoptera, Carabidae): descriptions of new genera, subgenera, and species, with an updated key to the subtribe in the Americas Author Boyd, Olivia F. Author Erwin, Terry L. text ZooKeys 2016 626 87 123 http://dx.doi.org/10.3897/zookeys.626.10033 journal article http://dx.doi.org/10.3897/zookeys.626.10033 1313-2970-626-87 3DE781B6D48B432B97846703EA6B280B 3DE781B6D48B432B97846703EA6B280B Taxon classification Animalia Coleoptera Carabidae Genus Pericompsus LeConte, 1851 Type species. Bembidium ephippiatum Say, 1834. Diagnosis. Mentum with paired foveae; pronotum with continuous, punctate transverse impression; basal transverse impression arcuate or lobed, forming crescent-shaped or bilobed basal section; elytron either with one to two conspicuous subhumeral fovea(e) along i8 in basal fourth or with 8 entirely punctate interneurs; elytra with or without color pattern. ABL = 1.72-3.72 mm. ( Erwin 1974a ; Erwin et al. 2002 ). Distribution. Australia and the Americas.