HARRISON G. DYAR. 11 



Geuus C'HADISRA Walker. 

 1862.— Walker, Trans. Ent. Soe. Lond. (3) i, 81. 

 1892. — Hampson. Moths of India, i, 159. 



Type and sole species, C- bipars Walk. 



The larva has a red tubercle on the eighth abdominal segment, is 

 greenish white with pale green, oblique, lateral lines, and a yellow 

 dorsal line. 



Genus HYPARPAX Hiibner. 

 1824. — Hyparpax Hiibner. Samml. Exot. Schmett. ii. 

 l8&Q.—8angata Walker, Cat. Brit. Mus. xx, 265. 



1894. — Hyparpax Neumoegen and Dyar, Trans. Am. Ent. Soc. xxi, 186. 

 Palpi porrect, exceeding the front, vein 5 from the middle of the cross-vein, a 

 long accessory cell, vein 10 arising from it ; 6 from beyond the end of cell ; 6 and 

 7 of secondaries stalked. 



Type H. aurora Smith and Abbot. The other species are vemis 

 Neum. and perophoroides Strecker. 



The larva has a furcate process on the first and eighth abdominal 

 segments and is colored brown and green, closely resembling the 

 species of Schizura. 



Genus SCHIZURA Doubleday. 



1841. — Schisura Doubleday, Entomol. i, 59. 



1864. — Oedemasia Packard, Proc. Ent. Soc. Phil, iii, 359. 



186i.— Cwlodasys Packard, Proc. Ent. Soc. Phil, iii, 363. 



1865. — Hatima Walker, Cat. Brit Mus. xxxii, 450. 



1894. — Schisura Neumoegen and Dyar, Trans. Am. Ent. Soc. xxi. 201. 

 Palpi moderate, porrect, not exceeding the vestiture of the front. Head dif- 

 fusely tufted at vertex ; anal tuft bifid in the male, but often short and not con- 

 spicuous. Wings rather elongate ; a long, narrow accessory cell ; vein 6 from its 

 under side, 10 from above ; 5 from near the middle of the cross-vein, rather weak 

 on secondaries. Male antenna; shortly pectinated on the basal two-thirds; female 

 simple. 



Type S. ipomcece Doubld. The other species are concinua Sm. and 

 Abb. (type of Oedemasia and Hatima), eximia Grote, perangulata 

 Hy. Edw., unicornis Sm. and Abb. (type of Coelodasys), apicalis 

 G. and R.. badia Pack., leptinoides Grote. 



The larvae are brown and green, with humps on the first and 

 eighth abdominal segments, all protectively colored except coiicinna, 

 which is gregarious and conspicuously marked. 



Genus lANASSA Walker. 

 1855. — lauassa Walker, Cat. Brit. Mus. v, 1101. 

 ISGA.—Xylinodes Packard, Proc. Ent. Soc. Phil, iii, 366. 

 1887.— P%« Druce. Biol. Cent.-Am. Lep. Het. i, 242. 

 1894. — lanassa Neumoegen and Dyar, Trans. Am. Ent. Soc. xxi, 200. 

 Palpi moderate, exceeding the front, head with a ditfuse tuft. Wings long, a 



TKANS. AM. ENT. SOC. XXIV. JANUARY, 1897. 



