Merging Tachyini into Tachyina -- both have been in parallel existence on iNat up to now.
 
Tachyine classification is an unsettled matter, but I suggest we follow, among others:

(1) Bouchard P, Bousquet Y, Davies AE, Alonso-Zarazaga MA, Lawrence JF, Lyal CHC, Newton AF, Reid CAM,
Schmitt M, Ślipiński SA, Smith ABT (2011) Family-group names in Coleoptera (Insecta). ZooKeys 88: 1–972. doi:10.3897/zookeys.88.807.

(2) Bousquet Y (2012) Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico. ZooKeys 245: 1–1722. doi:10.3897/zookeys.245.3416.

(3) Boyd OF, Erwin TL (2016) 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. ZooKeys 626: 87–123. doi:10.3897/zookeys.626.10033.

(4) Löbl I, Löbl D (eds) (2017) Catalogue of Palaearctic Coleoptera. Volume 1. Archostemata – Myxophaga – Adephaga. Revised and Updated Edition. Brill, Leiden. xxxiv + 1443 pp. doi:10.1163/9789004330290.