Osmia (Hemiosmia) anceps Pérez, 1895 Osmia anceps Pérez, 1895: 11. Type material: Lectotype ♀, by designation of Tkalců (1975), “ Médénin ” (Tunisia), Muséum Na- tional d’Histoire Naturelle Paris. Synonymy with Osmia uncicornis Pérez in Tkalců (1975), rejected by Haeseler (2005). Osmia (Hemiosmia) pulchra Tkalců, 1975: 46. Type material: Holotype ♂, “ Gafsa ” (Tunisia), Muséum National d’Histoire Naturelle Paris. Synonymy in Haeseler (2005). Literature records. LIBYA: Jabal al Gharbi (Jadu), Tripolis (Tripolis) (Zanden 1994; Haeseler 2005). TUNISIA: Gafsa (Gafsa), Jendouba (Tabarka), Médenine (Djerba, Médenine, Zarzis), Sousse (Sousse), Tozeur (Nefta) (Zanden 1994; Haeseler 2005). New records. ALGERIA: Tébessa: Betita, 29.2.2008, 1♀ (leg. N. Benarfa). TUNISIA: Béja: 5 km NW Ouech- tata, 29.4.2012, 3♀, 1♂ (leg. C. Praz, C. Sedivy, A. Müller); Gafsa: Gafsa, 5.4.2001, 1♀ (leg. M. Halada); Jendouba: 20 km E Tabarka, 17.4.2001, 1♀, 1♂ (leg. M. Halada); Kasserine: Sbeitla, 18.4.1994, 1♀ (leg. M. Schwarz); Médenine: 5 km W Metameur, 24.4.2012, 1♀ (leg. C. Praz); Nabeul: Kelibia, 15km SSW Cap Bon, 24.3.1988, 1♂ (leg. G.E. Nilsson); Tozeur: Nefta, 25.4.2012, 2♀ (leg. C. Praz, C. Sedivy, A. Müller). Distribution. From eastern Algeria over Tunisia to western Libya. To the present knowledge, the range of O. anceps does not overlap with that of the more easternly distributed O. chrysolepta. Pollen hosts. Oligolectic on Fabaceae (Tab. 1) with strong preference for Loteae (e.g. Lotus, Hippocrepis). Nesting biology. Unknown.

Published as part of Müller, Andreas, 2020, Palaearctic Osmia bees of the subgenera Hemiosmia, Tergosmia and Erythrosmia (Megachilidae, Osmiini): biology, taxonomy and key to species, pp. 201-236 in Zootaxa 4778 (2) on pages 210-211, DOI: 10.11646/zootaxa.4778.2.1, http://zenodo.org/record/3826170