98 



Without having observed the habits of the species I yet feel sure, 

 that the great difference in the apjiearance of the fore wings is 

 sexual. The genus differs in detail from any of its group ; it 

 seems to me allied to Cumoriza in wanting ocelli and to be lower 

 than Oligostigma. 



Ambssa n. g. Phycidae- 



The male antennae are slightly bent at base beyond the large 

 swollen basal joint and here show a single series of short teeth 

 discontinued above the flexure. On the female the antennae are 

 simple ciliate. Aspect of Myelois. The wings are long, the labial 

 palpi porrect, third joint long and slender. This structure of the 

 antennae is unusual in the group. I have not yet examined the 

 neuration. 



Ambesa laetella. x- s. 



(5 ? . Bright brown and whitish gray, brightly colored and 

 distinctly marked. A brown patch shading to blackish inferiorly 

 on costa, edged inwardly by the black anterior line and outwardly 

 by the narrow discal spot, margined straightly in the cell against 

 a white shade, which comes from the basal, field. Anterior line 

 preceded by brown shade and white line. Median space with a 

 brown shade on internal margin, wide, the lines far apart. Outer 

 line blackish followed by a white line and succeeded by a diffuse 

 brown shading which forms a defined blackish brown spot before 

 the apices on costa. A fine black terminal line; fringes fuscous 

 with a hair line at base. Hind wings translucent fuscous with 

 paler interlined fringes. Beneath fore wings fuscous, hind Avings 

 paler ; discontinued exterior lines indicated. Head and thorax 

 bright brown and gray. Expanse 28 mil. Colorad.o, Mr. Hulst. 

 Easily recognized by its size and from its bright red brown and 

 white markings. 



Paedisca Fernaldana. ^'. s. 



Easily distinguished from Ridlngsana by the purply red pri- 

 maries on which the silver markings are as follows: A stripe along 

 internal margin ; a longitudinal stripe from the base outwardly 

 ending acutely at middle of wing ; above tliis a trigonate costal 

 patch with a narrow space between it and an outer preapical 

 triangle with its blunted apex downward ; an irregular silver mark 

 beyond the extremity of the middle stripe joining a terminal 

 silver mark along external margin below apices. Hind wings 



