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.
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. (Ligação)
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.