A univoltine species with a relatively long flight period, extending from April to September,with a peark from May to late August. Ornosa et al (2009) list records for January in Spain but these need confirmation.
Parasites and predators: M.E. Archer (pers. comm.) has reared the wasp Pteromalus apum (Chalcidae) from a cocoon of this bee found in a stem-nest of Hoplitis claviventris collected in Hampshire.
Kasparek (2015) lists the wasps Hoplocryptus confector and H. bellosus (Ichneumonidae) as parasitoids