16 AMERICAN LEPIDOPTERA. 



Genus EUHAMPSOi\IA n. gen. 

 1892.— II Nadnta Hampson, Moths of India i, 130. 



The characters are given by Hampson. This genus differs from 

 Nadata in the presence of a tuft on the internal margin of primaries, 

 vein 6 arising considerably beyond the angle of the cell, the pecti- 

 nations of the antennae short and reaching but two-thirds of the 

 length, the outer margin very irregular instead of crenulate. 



Type and sole species, E. niveiceps Walk. 



Genus PTILODOBT Hiibner. 

 1806. — Ptilodon Hiibner, Tentamen. 



1829.— Lophopteryx Stephens, 111. Brit. Ent. Haust. ii, 26. 

 1892. — Lophopteryx Hampson, Moths of India i, 166. 



Type p. capiiciua Linn. (= camelina Linn.). The other species 

 are cucullina Den. and Schif., americana Harv., saturata Walk., 

 atrofusca Humps., Jiavistigma Moore, and f err uginosa Moore. 



The larva of the type is green with two horn like processes on the 

 eighth abdominal segment (tubercle i) ; in cucullina there is a slight 

 single hump on the first and eighth abdominal segments. 



Genus ODONTOSIA Hiibner. 

 1818.— Hiibner, Verz. bek. Schmett. 145. 

 1892.— Kirby, Cat. Lep. Het. i. 604. 

 Dilfers from Ptilodon in lacking the thoracic crest. Male antennae pectinate or 

 simple. Differs from Hyperieschra in the crenulate outer margin of primaries. 



Type 0. carmelita Esp. Here also will come 0. elegcms Strecker. 

 The larva of the type is smooth, green, inconspicuously marked. 



Genus HYPER^SCHRA Butler. 

 1880.— Butler, Ann. Mag. Nat. Hist. (5), vi, 65. 

 1892.— Hampson, Moths of India i. 163. 

 The male antennae are shortly pectinate ; female pectinate or ciliate. 



Type H. pallida Butler. The other species are basistriga Moore, 

 tenebrosa Moore, basalis Moore, nigribasis Hamps., dentata Hamps., 

 stragula Grote, pacijica Behr, tortuosa Tepp., georgica H.-S., f varie- 

 gata Moore. 



The larva of stragula closely resembles that of Notodonta ziczac ; 

 the others are unknown. 



Genus HICRODOBfTA Dupont. 

 1844. — Microdonta Dupont. Cat. Lep. Eur. 92. 

 1895. — Hierophanta Meyrick, Handb. Brit. Lep. 310. 

 Palpi slender, closely haired ; thorax with rough hairs ; venation as in Ptilodon; 



