Andrena (Opandrena) schencki MORAWITZ, 1866

Excavator: Ground. The species nests solitarily in small aggregations (up to 100 nests) in bare ground, favouring sandy or clay soils (Westrich, 1989).

Radchenko (2015), citing others, states that the species nests solitarily,or in small or large aggregations (up to 100 nests with a density of 40 nests per 5 m2), preferably in solid clay soil, although it may settle in sandy soil. The females dig their nests in grassy and slightly inclined ground. The nest consists of a vertical burrow (8-9 mm in diameter) that extends down to a depth of 5-7 cm up to 12-14 cm, ending with one to three horizontally oriented cells which are adjacent to the main burrow (Friese 1923, Bonelli 1966).

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