Osmia (Hemiosmia) uncicornis Pérez, 1895

Müller, Andreas, 2020, Palaearctic Osmia bees of the subgenera Hemiosmia, Tergosmia and Erythrosmia (Megachilidae, Osmiini): biology, taxonomy and key to species, Zootaxa 4778 (2), pp. 201-236 : 212-213

Osmia (Hemiosmia) uncicornis Pérez, 1895

Osmia uncicornis Pérez, 1895: 10 . Type material: ♂, ( Algeria?), no original material known ( Tkalců 1975).

Literature records. MOROCCO: Fès-Meknès (Ifrane), Guelmim-Oued Noun (Guelmim), Marrakesh-Safi (Safi,

Talmest), Rabat-Salé-Kénitra (Mehdia), Souss-Massa (Agadir, Biougra, Taroudant, Tiznit), Tanger-Tétouan-Al Hoceïma (Tanger) ( Benoist 1950; Haeseler 2005). PORTUGAL: Beira Litoral, Faro (Salema, Vila do Bispo), Lisboa (Cabo Raso, Caparica), Sétubal (Almada) ( Haeseler 2005; Baldock et al. 2018). SPAIN: Cádiz (Gibraltar, Puerto Real, Sanlúcar de Barrameda, Tarifa, Torre Guadiaro), Huelva (Mazagón), Málaga (Estepona, Malaga, Marbella, Torremolinos, Valle Niza) ( Tkalců 1975; Haeseler 2005, 2008).

New records. MOROCCO: Drâa-Tafilalet: 10 km E Boumalne Dadès, 31°22ʹN / 5°59ʹW, 11.4.1996, 1♀ (leg. J. Gusenleitner); Fès-Meknès: Ifrane , 33°31.27ʹN / 5°5.85ʹW, 1666 m, 14.5.2002, 1♀ (leg. H.-J. Flügel); Marrakesh-Safi : Ijoukak , 50 km SW Asni, 31°00ʹN / 08°07ʹW, 22.4.1996, 1♀ (leg. J. Gusenleitner); Souss-Massa: 5 km NE Sidi Boumezguid, 23.4.2014, 1♀ (leg. R. Prosi) ; Tanger-Tétouan-Al Hoceïma: Tanger , 7.4.1932, 1♀ (leg. A. Nadig) . PORTUGAL: Faro: 3 km W Salema , southern coast, 31.3.1997, 1♀, 1♂ (leg. P. Hartmann) . SPAIN: Huelva: 65 km SW Sevilla, W Matalascanas, 36.986°N / 6.518°W, 8.4.2010, 2♀ (leg. C. Schmid-Egger); Málaga : Estepona , 11.4.1985, 2♀, 8♂ (leg. H. Wolf) .

Distribution. From Morocco northwards to southern Spain and southern and central Portugal. To the present knowledge,the range of O. uncicornis in Spain does not overlap with that of the more easternly distributed O.balearica .

Pollen hosts. Oligolectic on Fabaceae (Tab. 1; Haeseler 2008; Baldock et al. 2018) with strong preference for Loteae (e.g. Lotus , Hippocrepis ); additional pollen hosts are species of Trifolieae (e.g. Medicago ).

Nesting biology. O. uncicornis nests in excavated, 3–5cm long burrows in loose sandy ground, often in small aggregations ( Fig. 2 ; Haeseler 2008). At the end of the burrow, one to several urn-shaped brood cells are constructed immediately beside each other ( Fig. 3 ). The nest entrance is often near dead plants, whose roots serve to fix the cells in the ground. The cells are entirely made of leaf pulp. Brood parasites: Dioxys ardens Gerstaecker and possibly Stelis ortizi Schwarz & Gusenleitner ( Haeseler 2008; Baldock et al. 2018).

Figures

FIGURES 1–7: Osmia (Hemiosmia). 1: Female of O. balearica on Lotus creticus (Fabaceae; photo V. Haeseler). 2: Female of O. uncicornis digging out nest burrow in loose soil (photo V. Haeseler). 3: Excavated brood cells of O. uncicornis. 4: Copulating pair of O. balearica (photo V. Haeseler). 5–7: Male terga 5–6 of O. uncicornis (5), O. argyropyga (6) and O. difficilis (7).