j. Proboscis strongly decurved; body with broad, appressed, metalescent scales; cell R_2 less than half as long as its petiole; claws of female simple, some of the claws of the male toothed. Several large southern species believed to feed only on nectar of flowers. _Megarhinus_ R. D. jj. Proboscis straight or nearly so, or otherwise different. k. Scutellum evenly rounded, not lobed; claws simple in both sexes. ANOPHELES Meig. l. Abdomen with clusters of broad outstanding scales along the sides; outstanding scales on the veins of the wing rather narrow, lanceolate; upper side of the thorax and scutellum bearing many appressed lanceolate scales. Florida and southward (CELLIA). m. Hind feet from the middle of the second segment largely or wholly snow white. n. With a black band at the base of the last segment of each hind foot. A. ALBIMANUS*[H] and TARSIMACULATA* nn. Without such a band A. ARGYRITARSIS* mm. Hind feet black, mottled with whitish and with bands of the same color at the sutures of the segments. W. I. A. MACULIPES ll. Abdomen without such a cluster of scales; outstanding scales of the wing veins rather narrow, lanceolate; tarsi wholly black. m. Deep black, thorax obscurely lined with violaceous, especially posteriorly; head, abdomen and legs black; no markings on the pleura; abdomen without trace of lighter bindings; wing scales outstanding, uniform, not forming spots, though little thicker at the usual points indicating the spottings. Florida. A. ATROPUS mm. Otherwise marked when the wings are unspotted. n. Wings unspotted. o. Petiole of the first forked cell (R_2) more than a third the length of the cell. Mississippi valley. A. WALKERI oo. Petiole of the first forked cell a third the length of the cell. Md. A. BARBERI nn. Wings spotted.