DESCRIPTIONS OF NEW GENERA AND SPEC^IES OF SOUTH AMERICAN GEOMETRID MOTHS. By William Warren, of London, England. t. ^Ju^ following species are described from the collection of Mr William Schaus, and comprise the new forms contained among the specimens which he put in my hands for determination. A majority of the species are from the Guianas, but others are included from difterent parts of the neotropical region, Mexico, Cuba, and Brazil. Ihe types are in the U. S. National Museum. I Family LTRANIID^E. Subfamily EPIPLEMilJsr^E;, Genus ANTIPLECTA Warren. ANTIPLECTA CAESIA, new species. Farewing.-Blackish slate-color; the lines darker; first angled out-wards in middle, the outer outcurved above, indented on submedian told, where it approaches inner line, then again outcurved, preceded throughout by blacker shading, which on inner margin forms a dark blotch between the two lines; a blackish line from below apex to below vein 4 on hind margin, with black spots between the veins-rringe concolorous. ' Mndtoly. -With the two lines black and curved, the space between them blacker, both plainer toward inner margin, the outer with a pale edge. Under side dark gray in forewing, whitish in hindwing Head, thorax and abdomen blackish; face black; vertex and anten-nal shaft snow-white; antennas of male with thick clavate teeth. Expanse of wings. — 17 mm. Zom^^We^.— Jalapa, Mexico, one male, one female; Orizaba, Mexico one male. ' Hindwing in both sexes minutely dentate at veins 7, H, and \-the told beneath on inner margin of male hindwing with its tuft of hairs svhitish. Ty^^.— Cat. No. 9144, U.S.N.M. Proceedings U. S. National Museum, Vol. XXX-No. 1456. 399
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