The Palaearctic types of Chrysididae (Insecta, Hymenoptera) deposited in the Linsenmaier collection. Part 4. Elampini: genus Omalus Panzer, 1801 Author Rosa, Paolo 0000-0003-2919-5297 Natur-Museum Luzern, Kasernenplatz 6, CH- 6003 Luzern, Switzerland. & University of Mons, Research Institute for Biosciences, Laboratory of Zoology, Place du parc 20, 7000, Mons, Belgium. paolo.rosa@umons.ac.be Author Heim, René 0000-0002-6011-5200 Natur-Museum Luzern, Kasernenplatz 6, CH- 6003 Luzern, Switzerland. rene.heim@bluewin.ch Author Bernasconi, Marco Valerio 0000-0003-0993-8049 Natur-Museum Luzern, Kasernenplatz 6, CH- 6003 Luzern, Switzerland. Marco.Bernasconi@lu.ch text Zootaxa 2023 2023-05-31 5297 1 61 86 http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN journal article 10.11646/zootaxa.5297.1.3 1175-5326 7989429 93FD168A-6CB8-4457-8F99-9E4A0507B3CF Genus Omalus Panzer, 1801 Omalus Panzer, 1801: 13 . Type species: Chrysis aenea Fabricius, 1787: 284 [= Omalus aeneus ( Fabricius, 1787 ) ], by monotypy.