Sphecodes is a genus of bees ithin the family Halictidae, the majority of which are black and red in colour and are colloquially known as "blood bees".
Sphecodes bees are cleptoparasitic on other bees, especially bees in the genera Lasioglossum, Halictus and Andrena.
The adults consume nectar and are polylactic, i.e. generalist feeders, but because they use other bees to bring up their offspring they do not collect pollen.
Naardermeer, The Netherlands, 18 April 2019