What is "pronuba yuccasella"

Yucca \Yuc"ca\, n. [NL., from Yuca, its name in St. Domingo.] (Bot.) A genus of American liliaceous, sometimes arborescent, plants having long, pointed, and often rigid, leaves at the top of a more or less woody stem, and bearing a large panicle of showy white blossoms.

Note: The species with more rigid leaves (as Yucca aloifolia, Yucca Treculiana, and Yucca baccata) are called Spanish bayonet, and one with softer leaves ( Yucca filamentosa) is called bear grass, and Adam's needle.

Yucca moth (Zo["o]l.), a small silvery moth ( Pronuba yuccasella) whose larv[ae] feed on plants of the genus Yucca.