Review of the subgenus Lyrothorax of the genus Pterostichus (Coleoptera: Carabidae) in the Western Palaearctic, with descriptions of two new species Author Muilwijk, Jan 0000-0002-0230-226X uilwijk@gmail.com Author Kataev, Boris M. 0000-0001-9890-2595 harpal@zin.ru Author Wrase, David W. 0000-0003-1779-2684 carterus@gmx.de text Zootaxa 2024 2024-06-12 5468 2 255 274 http://dx.doi.org/10.11646/zootaxa.5468.2.2 journal article 298438 10.11646/zootaxa.5468.2.2 7a281190-31de-47e2-8ba9-85a1c6924faf 1175-5326 11615558 0FF33E52-AEAB-4207-935C-4E11F551A96D Key to Western Palaearctic Lyrothorax species based on median lobe of aedeagus 1 In left lateral view angulate margin of preputial field of the apical orifice (pft) very large, triangular; terminal lamella in lateral view oblique, with a large tooth (tltl) ( Fig. 6b ), in dorsal view short (WL-tl: 2.99–3.41), apical margin incised medially ( Fig. 7b )..................................................................................... P. fritzei sp. n. - In left lateral view angulate margin of preputial field of the apical orifice (pft) short ( Figs 6a, c )....................... 2 2 Terminal lamella in lateral view straight or slightly bent, without a tooth along the left lateral margin ( Fig. 6c ), in dorsal view mostly long; but strongly variable (WL-tl: 1.89–3.06) ( Figs 7c 1–3 ), Czech specimens from Moravia : 1.67–2.04, from Bohemia : 2.37–2.76), mostly apical margin medially incised ( Fig. 7c )......................................... P . vagus sp. n. - Terminal lamella in lateral view oblique, with a small tooth ( Fig. 6a ), in dorsal view medium long (WL-tl: 2.38–2.60), apical margin straight, in some specimens from Gilan rounded ( Fig. 7a ).................................. P. caspius (Mén.)