Nest of Osmia distinguenda discovered for the first time

In May 2011, G. Pisanty observed several females of Osmia (Hoplosmia) distinguenda nesting in small rock cavities in Israel (see species account for details). While Hoplosmia species of the spinulosa and the pinguis group all seem to exclusively nest in empty snail shells, the species of the bidentata group also use other nesting sites, such as hollow stems, insect borings in dead wood or rock cavities as now observed for O. distinguenda (photo by G. Pisanty).

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