NATURAL SCIENCES OP PHILADELPHIA. 353 



point ; the raedio-discal nervule arises from a very short stalk placed at the 

 point of separation of the two superior branches of the median vein. 



Head smooth. With small ocelli. Face nearly naked, with a rather long thin 

 horizontal tuft on the forehead. Antennas setaceous, minutely ciliated in the tf, 

 pubescent in the 9- Palpi exceeding the face by much more than one half 

 their length, ascending toward the base, porrected beadlike, densely clothed 

 with scales, which are rather spreading above; upper edge convex from the 

 middle, beneath nearly straight; terminal joint smooth, distinctly separated 

 from the terminal scales of the middle joint, which conceal its articulation, 

 less than one half as long as the middle joint. Tongue about one half as long as 

 the labial palpi. 



C. ? r et i cu 1 atan a. Palpi reddish. Head yellow. Fore wings bright 

 deep yellow, beautifully and minutely reticulated with reddish orange. At the 

 base of the inner margin is a small dark red spot, and on the middle of the 

 margin is a triangular dark red dorsal spot, from which proceed two diverging 

 narrow bands of the same hue, somewhat varied with reddish orange, one to 

 the basal third of the costa, the other to the apical third, and crosses another 

 narrow band of the same hue, in the middle of the wing, coming from a dark 

 red spot near the middle of the costa, and is extended to the inner angle. Hind 

 wings straw-color. Tongue wanting. 



Male ? Fore wings straw-color, striated with reddish orange rather than 

 reticulated. The markings are essentially the same as in the 9i their color is 

 purplish red, and enclose reddish orange dots. Hind wings white. Tongue 

 one half as long as the palpi. 



C. ? sulfurean a. Fore wings shining pure yellow, slightly striated with 

 reddish orange ; from the middle of the inner margin two irregular reddish 

 orange lines diverge, and throw off short lateral branches in their course; one 

 runs to the basal third of the costa, the other towards the tip of the wing, 

 where it is connected with small spots of the same hue on the costa, aud a 

 stripe along the inner margin. Hind wings whitish. 



P<ecilochroma ? Stephens. 



The fore wings are rather narrow and long; costa regularly arcuated ; tip 

 rather acute; hind margin slightly excavated beneath the tip ; inner margin 

 nearly straight. The disk extends rather beyond the middle of the wing, with 

 a rather large secondary cell; the medio-posterior nervule arises opposite the 

 basal end of the secondary cell. In the hind wings the branches of the sub- 

 costal are connivent ; discal vein curved, and a curved medio-discal arising 

 from the median vein, the upper nervule of which is forked remotely from the 

 origin of the medio-discal. 



Head rather smooth. With ocelli. Face smooth, with a slight horizontal 

 tuft on the forehead. Antennae setaceous, pubescent beneath. Palpi exceeding 

 the face by more than one half their length, ascending from the base to the 

 middle, and thence porrected; very broad in the middle, and arched above ; 

 the middle joint thickly clothed with scales, which form a tuft beneath towards 

 the tip; the terminal joint slender, cylindrical, smooth, and almost concealed 

 in the hairs of the middle joint. Tongue extends rather more than cne half 

 the length of the labial palpi. 



P.? d or s is i gn atan a. Palpi and head brown. Fore wings chocolate 

 brown, grayish brown along the inner margin, beneath the fold, and nearer 

 the base than the inner angle is a semi-oval chestnut brown dorsal spot ex- 

 tending a little bevond the fold. In the middle of the wing is a broad, rich 

 brown, oblique fascia, beyond which the wing is somewhat varied with gray- 

 ish. Costa near the tip slightly striated and grayish. Hind wings with pale 

 shining fuscous. 



P. ? similiana. Palpi and head dull reddish brown. Fore wings some- 

 I860.] 



