Genus: Osmia Panzer, 1806
Subgenus: Metallinella Tkalců, 1966
Common name: none
Osmia (Metallinella) are dull metallic blue or green bees that range in body length from 6.5–12 mm (Michener 2007).
(modified from Michener 2007)
Osmia (Metallinella) have been observed visiting Brassicaceae (Praz et al. 2008; Müller 2018).
Osmia (Metallinella) nest in the cavities of wood-boring insects, insect burrows in dead wood, drilled borings in wooden blocks and pithy stems, hollow stems, and holes and cavities in walls (Müller 2018). Nest plugs are made of chewed leaves. The cavities do not have separate cells, so the nests lack cell partitions. Cavities are filled with pollen. Eggs are scattered throughout the nest with the pollen. Cocoons, when formed, are arranged at random in various orientations (Radchenko 1978; Bosch et al. 1993).
Osmia (Metallinella) contains one species, O. brevicornis, which does not occur in the U.S. or Canada (Michener 2007).
There are no known invasives.
Osmia (Metallinella) have been found in northern Africa, southwestern Asia, and throughought Europe (Michener 2007; Müller 2018).