Andrena (Andrena) nycthemera Imhoff, 1868

Excavator: Ground. The female bees prefer sandy places with scanty vegetation for nesting. They build their nests as well into the flat soil as into small vertical slopes or under little Overhangs. Thus some of the nest entrances may seldom be in the direct sunshine. Often the
entrance is partially hidden beneath dry leaves or a tuft of dry grass. The females seem to prefer rugged soil to smooth horizontal places. In two cases it was observed that a female apparently lived in a nest which had been used before by another female.(Schoenitzer & Klinksik, 1991).

Mating takes place on the surface of the soil at the nesting site

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