45 



males (this brighter tint appearing somewhat as the roseate 

 in Hynstri) ; head above and thorax black ; forewings pale 

 brown with the margins dull blackish ; veins markad with 

 black ; the white discal dot has a line attached, double at 

 first; fringes black; Mndwings gray with a broad terminal 

 black border and faint median band : fringes pale ; beneath 

 also yellowish in male, gray in the opposite sex. Larva 

 on Willow (Hulst). Canada to Middle States. This is 

 probably our rarest Hawk Moth of these kinds, proper to 

 the Middle States. Related in markings to succeeding species. 

 The yellow suffusion of the male is most curious. 



Gordius. Cram. Gray; forewings clouded with dull 

 brownish or blackish ; discal spot small, Avhite and triangular, 

 two fine lines emerging from it crossing the cell and uniting; 

 veins more or less marked with black; a regular series of 

 interspaceal dashes, the upper forming apical streak; fringes 

 whitish, cut with brown; hindwings whitish with blackish 

 borders and central band ; fringes white. Lan-a on Apple, 

 Ash, etc. Quite common. Canada southwardly. Related to 

 Luscitiosa, but a little stouter. So far the species here 

 cited are related in pairs; the smaller forms of Spliinx are 

 (see my paper in Silliman's Journal) an American expansion 

 of the genus. 



E remit us. Hiibn. Forewings brownish gray, with a 

 white discal spot set in a black dash, crossed by blackish 

 shade bands in pairs and with the interspaceal dashes marked ; 

 hind wings white with a black basal spot and a median and 

 broad terminal band. Lan-a on Spearmint and Salria. Canada, 

 southwardly. Not common. I do not find any grounds for 

 separating this generically and have referred it to this genus 

 in my Lists; Lugciis Walk., from the West is an allied 

 species. 



Dilophoiiota. Burm. 



The form is that of Sphinx (Letlua of Hiibner) but is 

 slenderer yet, the wings sharp at tips, abdomen longer, more 

 gradually pointed. The thorax is bicrested, rounded in front, 

 not so square as in the allied genus Isoynatltns of Felder. 



