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 soror (Ermisch, 1941) comb. nov. ( Figs 5A–E ) Mordellistena soror Ermisch, 1941a:180 . Syntype (number of specimens not mentioned): Baltic amber. Type material examined. SYNTYPE : ( SDEI ): ‘ MORDELLISTENA [p] / soror [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 a bigger white label] // SDEI Müncheberg / SDEI-AMB-000638 [p; yellowish label]’. Comments on identification. At least mesotarsomere IV is very dilated so this species cannot be assigned 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.