5G BULLETIN 48, UNITED STATES NATIONAL MUSEUM. 



Chytolita nioibi'dalis, Guenoc. 



1854. (lueiK'C, Species General, Deltoide.s, 50, pi. (>, tig. 3, Hermhiia. 

 18.59. Walker, Cat. Brit. Mns. Ileterocera, XVI, 103, Hermhiia. 



1872. Grotc, Trans. Am. Entomological Soc, IV, 9G, Hermhiia. 



1873. Grote, Trans. Am. Entomological Soc, IV, 309, Chytoliia. 

 1873. Grote, Bnll. Bntt'. Soc. Nat. Sci., I, 39, Chijloliia. 



1880. Coqnillctt, Canadiaii Entomologist, XII, 44, larva. 

 1893. Smith, Bnll. U. S. Nat. Mns., 44, 381, Herminia. 



Ground color luteous gray with more intense yellow powderings. 

 Head and tliorax concolorous. Primaries with the median line.s single, 

 usually distinct, broad, sometimes a little diffuse. Trrtnsver.se anterior 

 line outwardly bent on the costa, thence nearly upright or only a little 

 irregular or somewhat outcurved in the interspaces. Transverse pos- 

 terior line Avidely and very evenly outcurved over the cell, much less 

 incurved below; even or a little marked on the veins. Subterminal 

 line a series of bhickish dots or small spots, followed by indefinite 

 I)aler marks. A slender, interrupted black terminal line. Orbicular 

 wanting. Kenitbrm always evident, usually distinct, sometimes ])rom- 

 inent; nearly upright, moderate in size, subkidncy shaped, yellowish 

 to blackish, sometimes annulate with black scales. The transverse 

 posterior line is sometimes inwardly diffuse, and sometimes the outer 

 l)ortion of the median space is markedly darker. Secondaries paler, 

 more powdery, Avith a vagne, incomplete, dusky extra median line and 

 a pale, often irregular, also incomplete, subterminal hue, which is 

 preceded by a blackish shading. JJeneath, with coarse ocherous ])ow 

 derings, a broad, variably distinct median line, a less evident, often 

 obsolete, ])ale outer line, and on secondaries a dusky discal Innule. 



Exiianse of wings, 28 to 37 mm. = 1.15 to 1.50 inches. 



Habitat. — Nova Scotia, southward to Virginia; Central States, 

 June and July. 



This species varies little except in the distinctness of the reniform 

 and the relative prominence of the median lines. It is common 

 throughout its range and readily started up during the day, while 

 coming freely to light and to sugar. The sexual peculiarities of 

 antenna' and fore legs have been already sufticiently described. 



The harpes of the genitalia of the male have a slender, membranous 

 upper prolongation, which is squared at the tip, and a stout, very 

 strongly chitini/.ed, pointed process, inferiorly shorter than the ui)per 

 part, the intervening space roundedly excavated. 



Chytolita petrealis, Grote. 



1880. Grote, Canadian Entomologist, XII, I'U), ChytoHta. 

 1893. Smith. Bull. U. S. Nat. Mns., 44, 381, H<rwi)iia. 



Ground color luteous gray, more or less black powdered. Head and 

 thorax concolorous. rrimaries varying in tint, sometimes almost 

 smoky; median lines usually defined and always traceable, though 

 sometimes obscured. The ordinary lines and marks are in all essen- 

 tials like those of (\ ))io)-hi<h(hs, save that they are less even, the 



