Globe Mallow Bees (Complex Diadasia diminuta) are solitary bees that nest in aggregation. Females dig nest holes in the ground. Each bee has its own nest hole, but many females nest in the same area. Males don't use burrows.

Females collect pollen to provision their offspring, but males do not. As a result, males and females can be identified by the presence (female) or near-absence (male) of hairs on the hind legs (big pollen baskets; scopal hairs) that are used to carry pollen.

Taxonomy: Insecta, Hymenoptera, Aculeata, Apoidea, Apine Bees Subfamily Apinae, Chimney Bees Tribe Emphorini.