Diversity and morphology of Eocene and Oligocene Mordellidae (Coleoptera) Author Batelka, Jan Author Rosová, Kateřina Author Prokop, Jakub text Acta Entomologica Musei Nationalis Pragae 2023 2023-12-30 63 2 451 478 http://dx.doi.org/10.37520/aemnp.2023.027 journal article 10.37520/aemnp.2023.027 1804-6487 10621277 4F6482C1-A2F2-4406-A115-B8E0F205806C Baltistena amplicollis (Ermisch, 1941) comb. nov. ( Figs 2D–G ) Mordellistena amplicollis Ermisch, 1941a: 182 . Holotype : Baltic amber. Type material examined. HOLOTYPE ( SDEI ): ‘ MORDELLISTENA [p] / amplicollis [hw] / det. Ermisch 194 [p] i [hw, sic; white label glued on a bigger white label] // TYPE [p; in black frame, red label glued on the bigger white label] // SDEI Müncheberg / SDEI-Amb-000640 [p; yellowish label]’. Comments on identification. As pro- and mesotarsomere IV are distinctly broader and shallowly emarginated, this species cannot be attributed to Mordellistena . To distinguish it from other Eocene Mordellistenini see the Key below. Because of the uncertain generic identity of this species, it is transferred here into Baltistena new collective group.