S. Mahunka szerk.: Folia Entomologica Hungarica 57. (Budapest, 1996)

7 (2) Tarsal segments without fine punctuation and fine pubescence on dorsal side. Head without punctuation and fine pubescence genus: Semiophonus Schauberger, 1933 8 (1) Temple without fine punctuation and fine pubescence behind eye. Pronotal disk not punctuated. 9(14) Tarsal segments with fine punctuation and fine pubescence on dorsal side. 10 (11) Lateral margins of pronotum convex before posterior angles. Posterior pronotal angles broadly rounded genus: Harpalophonus Ganglbauer, 1892 11 (10) Lateral margins of pronotum rectilinear or slightly sinuate before posterior angles. Posterior pronotal angles obtusely pointed, barely rounded. 12 (13) Pronotum in posterior third and entire elytra with fine pubescence genus: Harpalus Latreille, 1802 13 (12) Pronotum and elytral disk without fine pubescence genus: Platus Motschulsky, 1844 14 (9) Tarsal segments without fine punctuation and fine pubescence on dorsal side. 15 (30) Head relatively small; neck relatively narrow. Eyes relatively large and strongly protruding. Anterior region of prosternum apparently bare, at most with short, fine hairs genus: Actephilus Stephens, 1833 16 (25) Metafemora with a more or less regular row of setigerous punctures (and longer setae): number of punctures (and longer setae), as a rule, less than 10. Ventral pubescence (disregarding obligate, exserted, longer tentorial setae) indistinct, consisting of fine, minute hairs. 17 (20) Both sides of last abdominal sternite — disregarding obligate, larger setigerous punctures (and exserted, longer tentorial setae) — with a smaller or a larger group of fine setigerous punctures (and fine, minute hairs). Sometimes last abdominal sternite almost entirely covered with fine setigerous punctures (and fine, minute hairs). 18 (19) Elytral intervals (at least lateral ones) with punctuation and fine pubescence subgenus: Epiharpalus Reitter, 1900 19 (18) Elytral intervals without punctuation and fine pubescence subgenus: Lasioharpalus Reitter, 1900 20 (17) Both sides of last abdominal sternite with obligate, larger setigerous punctures (and exserted, longer tentorial setae) only. 21 (22) Punctuation of basal impressions of pronotum extending to a great part of pronotal base, and (as a rule) extending as far as lateral margins subgenus: Erpeinus Motschulsky, 1844 22 (21) Punctuation of basal impressions of pronotum (obsolete and indistinct sometimes) extending to, at most, a small part of pronotal base, besides a few punctures may be present near posterior angles and lateral margins. 23 (24) Pronotum subcordiform; lateral margins rectilinear or slightly sinuate before posterior angles. Basal impressions of pronotum distinctly punctuated subgenus: Harpaloderus Reitter, 1900