Results of the microscopical analysis of 350 pollen samples from about 110 osmiine bee species were incorporated into the species accounts. For the following 6 species, the first pollen samples became available: Hoplitis (Alcidamea) decaocta, Hoplitis (Annosmia) fulica, Hoplitis (Annosmia) gentilis, Hoplitis (Annosmia) eremophila, Hoplitis (Anthocopa) antigae, Osmia (Hemiosmia) chrysolepta.
In a recent paper, Le Goff (2010) describes the nest architecture of Hoplitis (Annosmia) annulata and Hoplitis (Annosmia) tkalcuella. For details see the species accounts on the Palaearctic osmiine bee website.
The nesting behaviour of Osmia (Hoplosmia) croatica (Friese, 1893) was unknown so far. Recently, A. Müller detected a nest of this species in an empty snail shell hidden below stones in the Abruzzi mountains (Italy). For details see the species account on the Palaearctic osmiine bee website.
On their excursion to Israel in spring 2010, C. Praz and C. Sedivy detected the hitherto unknown nests of Hoplitis (Anthocopa) batyamae, Hoplitis (Pentadentosmia) helouanensis, Hoplitis (Pentadentosmia) quinquespinosa and Osmia (Helicosmia) fasciata. For details see the species accounts on the Palaearctic osmiine bee website.
Results of the microscopical analysis of 254 pollen samples from 78 osmiine bee species were incorporated into the species accounts. For the following 8 species, the first pollen samples became available: Hoplitis (Annosmia) christae, Hoplitis (Annosmia) leiocephala, Hoplitis (Annosmia) segura, Hoplitis (Annosmia) verhoeffi, Hoplitis (Anthocopa) unispina, Hoplitis (Hoplitis) tkalcuella, Hoplitis (Pentadentosmia) enslini and Hoplitis (Pentadentosmia) helouanensis.
Results of the microscopical analysis of 241 pollen samples from 76 osmiine bee species were incorporated into the species accounts. For the following 12 species, the first pollen samples became available: Hoplitis (Alcidamea) grossepunctata, Hoplitis (Anthocopa) alba, Hoplitis (Anthocopa) wahrmani, Hoplitis (Anthocopa) zaianorum, Hoplitis (Hoplitis) latuspilosa, Hoplitis (Hoplitis) linguaria, Osmia (Erythrosmia) erythrogastra, Osmia (Helicosmia) lazulina, Osmia (Hemiosmia) anceps, Osmia (Neosmia) scutispina, Osmia (Neosmia) tingitana and Osmia (Osmia) emarginata.
In a recent paper, Rozen et al. (2010) describe the nesting biology, floral preferences and immature stages of Osmia avosetta, the only representative of the subgenus Ozbekosmia, and compare its biology with that of three Tergosmia species, which are closely related to O. avosetta: Osmia lunata, O. rhodoensis and O. tergestensis.
Stefan Werner reared a female of Osmia (Helicosmia) melanogaster from a snail shell collected on the island of Mallorca in 2001. This observation supports earlier findings that this species occasionally uses empty snail shells as nesting sites.
Tatiana Romankova kindly contributed flower records as well as information on the nesting biology of several species from far eastern Russia, i.e. Osmia (Osmia) opima, Osmia (Osmia) pedicornis, Osmia (Osmia) taurus, Osmia (Helicosmia) orientalis and Hoplitis (Formicapis) maritima.
Rozen et al. (2009) describe the nesting biology of Hoplitis (Hoplitis) monstrabilis from eastern Turkey. The species was found to nest in excavated burrows in the ground in a similar manner as the species of Hoplitis (Annosmia) do.