title: Hylaeus subtilis Forster 1871
abstract: Hylaeus subtilis Förster, 1871: 1039. Lectotype (here designated) ♀; Austria (MNHN, examined). Hylaeus nigrifacies Bramson, 1879: 281. Holotype ♀; Ukraine: Jekaterinoslaw [= Dnipropetrovsk] [Neotype ♀ designated by Warncke (1986); Ukraine: Cherson, ZSM, examined). New synonym. Prosopis gracilicornis var. luteifrons Strand, 1909: 72. Holotype ♂; Crimea: Sudagh (Holotype deposited at ZMHB and not at DEI as mentioned in Dathe (2023), examined). New synonym. Prosopis moricella Bischoff in Stöckhert,
journal: Zenodo (CERN European Organization for Nuclear Research)