Genus ACOLOITHUS Clemens (1) Acoloithus falsarius Clemens, Plate XVI, Fig. 14, male. Syn. sanborni Packard. The larva feeds upon the grape and the Virginia creeper (Ampelopsis). The insect is not scarce in the Atlantic States. Genus PYROMORPHA Herrich-Schaeffer (1) Pyromorpha dimidiata Herrich-Schaeffer, Plate XLVII, Fig. 33, male. Syn. Perlucidula Clemens. The insect is not very common. It is a native of the eastern portions of the territory with which this book deals. Genus TRIPROCRIS Grote There are eight species assigned to this genus in recent lists. They are all found in the southwestern portions of our territory. (1) Triprocris rata Henry Edwards, Plate XIII, Fig. 4, male. A native of Arizona. (2) Triprocris latercula Henry Edwards, Plate XIII, Fig. 5, male. Has the same habitat as the preceding species. (3) Triprocris constans Henry Edwards, Plate XIII, Fig. 16, male. The moth occurs in New Mexico. (4) Triprocris smithsonianus Clemens, Plate XLVII, Fig. 32, male. The insect is not uncommon in the southern portions of Colorado, and is found in New Mexico and northern Texas.