Subgenus
Olisares Motschulsky, 1865
Olisares
Motschulsky, 1865: 326. Type species:
Olisares flavolimbatus
Motschulsky, 1865 (=
Carabus pallipes
Fabricius, 1792) designated by Liebherr (1991a: 120). Etymology. Probably an arbitrary combination of letters [masculine].
Taphranchus
Casey, 1920: 52. Type species:
Agonum excavatum
Dejean, 1828 designated by Lindroth (1966: 623). Synonymy established by Liebherr and Schmidt (2004: 203). Etymology. From the Greek taphros (ditch, trench, by extension stria) and the generic name
Anchus
[q.v.] [masculine].
Stictanchus
Casey, 1920: 54. Type species:
Feronia extensicollis
Say, 1823 designated by Lindroth (1966: 625). Synonymy established by Liebherr and Schmidt (2004: 203). Etymology. From the Greek stictos (punctured) and the generic name
Anchus
[q.v.] [masculine].
Deratanchus
Casey, 1920: 70. Type species:
Platynus quadrimaculatus
Horn, 1885 by monotypy. Synonymy established by Liebherr and Schmidt (2004: 202).
Circinalia
Casey, 1920: 72. Type species:
Feronia punctiformis
Say, 1823 by original designation. Synonymy established by Liebherr and Schmidt (2004: 203).
Circinalidia
Casey, 1920: 78. Type species:
Agonum aeruginosum
Dejean, 1828 designated by Bousquet and Larochelle (1993: 258). Synonymy established by Liebherr and Schmidt (2004: 203).
Micragonum
Casey, 1920: 80. Type species:
Feronia nutans
Say, 1823 by original designation. Synonymy established by Liebherr and Schmidt (2004: 203). Etymology. From the Greek micros (small, little) and the generic name
Agonum
[q.v.] [neuter].
Stereagonum
Casey, 1920: 80. Type species:
Agonum ferreum
Haldeman, 1843 designated by Lindroth (1966: 624). Synonymy established by Liebherr and Schmidt (2004: 203). Etymology. From the Greek stereos (solid, firm, hard) and the generic name
Agonum
[q.v.] [neuter].
Melanagonum
Casey, 1920: 111. Type species:
Agonum melanarium
Dejean, 1828 designated by Lindroth (1966: 598). Synonymy established by Liebherr and Schmidt (2004: 202). Etymology. From the Greek melanos (black) and the generic name
Agonum
[q.v.] [neuter].
Punctagonum
Gray, 1937: 311. Type species:
Platynus belleri
Hatch, 1933 by monotypy. Synonymy established by Liebherr and Schmidt (2004: 203). Etymology. From the Latin punctum (small hole, by extension puncture) and the generic name
Agonum
[q.v.] [neuter].
Diversity.
Seventy-two species in the Nearctic (50 species), Neotropical (14 species in Middle America but only two endemic), and Palaearctic (21 species, one Holarctic) Regions.