Ptilothrix

Ptilothrix is a genus within the tribe Emphorini of the family Apidae (bumblebees, euglossines, honeybees, stingless bees). Bees of this genus can range from . Ptilothrix species are solitary, ground-nesting bees. These bees have especially prominent hairs in the scopae of their hind legs, to help gather pollen to provision their nests. Ptilothrix species specialize on certain families of plants for their pollen, including the families Malvaceae, Convolvulaceae, Onagraceae, Cactaceae, Pontederiaceae, and Asteraceae. The genus is found in the New World, with species ranging across the Americas.

==Species== The genus contains these species: Ptilothrix albidohirta Ptilothrix bombiformis (hibiscus bee, rose-mallow bee, eastern digger bee) Ptilothrix chacoensis Ptilothrix chiricahua (2023) Ptilothrix concolor Ptilothrix corrientium Ptilothrix fructifera Ptilothrix fuliginosa Ptilothrix heterochroa Ptilothrix lynchii Ptilothrix nemoralis Ptilothrix nigerrima Ptilothrix plumata Ptilothrix relata Ptilothrix scalaris Ptilothrix sumichrasti Ptilothrix tricolor Ptilothrix vulpihirta Ptilothrix zacateca (2023)