MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 141 



Antennie heavily pectiuatiMl; palpi larger than in IjOphodonta — Dri/munia 



Fore wings acute at apex, and with a large tuft; with no cross lines; outer edge of fore wings scalloped. 



Lophopferi/x 

 Antenna^ well jiectiuated; palpi small; fore wings long, much produced toward the rounded apes; dark brown 



iuterveuular streaks ; no cross lines I'heoxhi 



Antenna' snbsiuiple; apex of fore wings well rounded; no subcostal cell; tuft rather small Xotodonla 



Antcuna' more widely [jectiuated tlian in Notodouta; fore wings squarer, less roun<led at apex Ellida 



Antenna; pectinated to the tips; palpi large and long; a high thoracic tuft; apex of fore wings well rounded ; inner 



edge wi til no tuft •- Nrricc 



Head with a high tuft; pa.l])i long sleiuler, fore wings acute, with black longitudinal slashes Dasi/Iojihia 



Head with a high tuft; ajiex of forewings square; costal edge of fore wings white /Si/mmerista 



SYN0P8I.S OP TIIK I.ARV.E (TII.\T OK ElLIDA NOT KNOWN). 



A. Body not humped, noctuiform. 



Body cylindrical ; not hairy; with two faint yellow subdorsal lines Kaiiain 



As in Nadata, but more wrinkled; a faint double dorsal line and a lateral jiink line extending alongside of 



head Lojihuilonfa 



Body as in Lophodonta, green, a lateral yellow siiiracular line besides tlie subdorsal oue Dri/mvnia 



f Larva of American species not known) Kuroiieau larva' with two separate large high dorsal papilhe on eighth 

 abdouiiual segment — Lophopterijx 



B. Body sphinx-like, with a caudal horn or only a hump. 



Xo lines or bands; skin smooth, ])oreelain-like Pheo.siii 



C. Body with from three to five humps on abdominal region. 



Head large, square; anal legs used in walking Xolodoiila 



D. Abdominal segments 1 to 8 with a forked hump. 



Divisions of the humps opened and closed like a bird's bill Xerice 



E. A low dorsal knob on the eighth abdominal segment. 



Anal legs with no hoidvs; end of liody uplifted ; body gaily striped Ikixjilophia 



F. Eighth abdominal segment swollen on sides and above. 



Head small, rounded; liody conspicuously banded; suranal plateluuate; anal legs with hooks Si/mmcrinlii 



Nadata Walker. 

 (PI. XLI, fig. 1, venation.) 



rhalnna Abbot and Smith, Lep. Ins. Georgia, p. 163, 1797. . 

 Cosmoiricha (in part) Hiibner, Samral. Exot. Schmett., iii, 1816. 

 Xddata Walk., Cat. Lep. Het. Br. Mus., v, p. 1062, 18.55. 



Pack., Proc. Ent. Soc. Phil., iii, p. 356, 1864. 

 Alastor Boisd., Lep. Cal., p. 87, 1869. 

 Nadata Grote. New Check List N. Amer. Moths, p. 18, 1882. 



Smith, List Lep. Bor. Amer., p. 30, 1891. 



Kirby, Syu. Cat. Lep. Het., i, p. 614, 1892. 



Neum. and Dyar, Trans. Amer. Eut. Soc. xxi, p. 18.5, 1894; Journ. N. Y. Ent. Soc, p. 113, Sept., 1894. 



Moth. — Head inodcrntely iiroiniiient; front trianijular, broad above; below tlie base of each 

 aiiteuua is a large si)readinj;' tuft of long scales reaching halfway down the front and jiartially 

 covering the eyes, which are naked, not hairy. Antenna- in S with long slender pectinations, the 

 branches extending to the tips; in the 9 the pectiiuitions hardly longer than the joints. Palpi 

 large, long, stout, ascending porrect, the third joint rather short, thick, but distinct; second joint 

 not hairy at the end. JNIa.xilhe small, rather short. 



Thorax with a remarkably high pointed tuft on the front i)art and sending a ridge down each 

 side to the end of the tegulre; beneath, very hairy. Fore wings distinctly pointed at the apex, 

 Aviiich is somewhat more so than in Datana; costa convex on the outer half, especially in the 9 ; 

 outer edge regularly convex behind the apex, but little shorter than the internal edge, more 

 oblique in 9 than in c? ; in 9 slightly scalloped. Discal veins situated within the middle of the 

 wing, so that all the venules are longer than usual. A rather short subcostal cell; apical region 

 of the costa very narrow, the first, second, third, and fourth subcostal venules ending very near 

 each other and near the apex. Hind wings somewhat produced toward the apex; outer edge 

 regularly convex, much longer than the internal edge; the lower discal vein oblique, much 

 curved; both discal venules, as in Datana and Gluphisia, situated nearer the base of the wing 

 than usual. 



