About Anthidium maculosum Cresson, 1878
This bee species, Anthidium maculosum, can be identified by the presence of apical spines on the middle tibia. For this species, body size correlates positively with head width: a larger head is associated with a larger overall body size. Body size differs between territorial and non-territorial males of this species. Territorial males are larger in body size, and larger size correlates with their ability to hold territory, while non-territorial males are smaller, and this smaller size indicates they are subordinate. Males of this species are larger than females, which is a common trait in the bee family Megachilidae. This pattern is rare in other bee families, where females are normally larger than males. Anthidium maculosum constructs its nests inside holes that have been excavated in wood. This species is distributed across North America and Middle America. It is most commonly found in Mexico and the United States. Observed populations of this bee range from the Washington–Oregon border in the north, down to Honduras in the south, and extend as far west as Texas.
