Andrena (Cryptandrena) diomedia Warncke, 1975 Remarks. Listed by Comba (2019) [species 58] citing Warncke (1975c; 1980) and Kuhlmann et al. (2015). All these publications use the combination A. rotundata ssp. diomedia, a species that Comba (2019) lists as species 59. Currently there is no suitable evidence to justify the elevation to species status of A. diomedia; genetic data is needed to first clarify the relationship of A. rotundata Pérez, 1895 to A. brumanensis Friese, 1899, particularly on Sicily where A. rotundata appears to exclude A. brumanensis (Wood, unpublished data), before the status of the taxon diomedia can be clarified.

Published as part of Wood, Thomas James, Praz, Christophe, Selis, Marco, Flaminio, Simone, Mei, Maurizio, Cornalba, Maurizio, Rosa, Paolo, Divelec, Romain Le & Michez, Denis, 2023, Revisions to the Andrena fauna of Italy, with the description of a new species (Hymenoptera: Andrenidae), pp. 271-310 in Fragmenta entomologica 55 (2) on page 288, DOI: 10.13133/2284-4880/1542, http://zenodo.org/record/12763254