What combination of features generally describes the overall build of the *Hylaeus* genus?
Answer
Small size, slender build, and possessing facial yellow markings
The genus *Hylaeus* is physically defined by a set of characteristics that make them stand out from familiar bees like bumblebees or honeybees. They possess a distinctly slender build, giving them a more delicate structure compared to the robust forms of other Apiformes. They are generally considered small to medium-sized solitary bees. The commonality that ties all members of this group together, regardless of subtle variations in size or sheen, is the presence of bright yellow markings concentrated on the face, which is the source of their common name.

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