Andrena (Taeniandrena) croceiventris Morawitz, 1871

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), Fragmenta entomologica 55 (2), pp. 271-310 : 277-278

Andrena (Taeniandrena) croceiventris Morawitz, 1871

Remarks. Andrena croceiventris was described from Calabria (see Astafurova et al. 2021) and was considered to be a synonym of A. (Taeniandrena) similis Smith, 1849 (= A. (Taeniandrena) russula Lepeletier, 1841 ) ( Warncke 1967; Gusenleitner & Schwarz 2002). Praz et al. (2022) restored A. croceiventris to species status based on morphological and genetic data. Examination of material from the Pagliano collection (MRSN) shows that the range extends further north into Piemonte rather than the Sicily-Tuscany distribution reported by Praz et al. (2022).

Furthermore, Costa (1889: 4) described the unclear taxon A. hyalinella Costa, 1889 which based on the description has the metasoma extensively red-marked. Warncke (1967: 207) suggested, based on the description, that the female was similar to A. (Margandrena) marginata Fabricius, 1776 , though noting the male was clearly different since it was described with a black clypeus, and the clypeus of A. marginata is white. Andrena hyalinella is listed as a synonym of A. marginata in Gusenleitner & Schwarz (2002). However, it cannot be synonymous with A. marginata , as the type material was collected around Cerignola in southern Italy, a low elevation area (c. 100 m above sea level) where A. marginata does not occur, and the species was collected in May, whereas A. marginata flies from July to early September. We hypothesise that A. hyalinella is more likely to be a junior synonym of A. croceiventris , though the Costa collection in Napoli must be revised in order to determine whether this type material remains preserved or has been lost.

Material examined (see also Praz et al. (2022) for additional material)

ITALY: PIEDMONT: 1♀, S. Benedetto Belbo ( CN) , 20 May 1989, leg. G. Pagliano ( MRSN) ; 3♀, idem, 637 m, 2 Jun 1980, leg. G. Pagliano ( MRSN) . LAZIO: 2♀, Sutri env., 19 Jun 1974, leg. Ph. Pronk ( RMNH) . BASILICATA: 1♀, Rotonda ( PZ) , 5 Jul 1987, leg. G. Pagliano ( MRSN) . ABRUZZO: 1♀, Alfedena ( AQ) , 914 m, vi.1941, leg. L. Ce- resa ( MSNM) . SICILY: 1♀, Taormina , 20 May 1922, leg. Schulthess ( DEI) ; 1♀, Taormina , 3 May 1976, leg. S.J. v. Ooststroom ( RMNH) .