LEPIDOPTERA. 177 



LaUal palpi elevated above the level of the eyes, hairy, those at 

 the base, side, and in front, long. 



Tliorax robust, clothed with long hairs. 



Ahdmnen of moderate size. 



Fore-wings elongate-trigonate ; anterior margin boldly curved ; 

 apical angle slightly rounded ; outer margin somewhat straight in 

 the male, concave in the female, slightly waved, two-thirds the 

 length of the anterior ; posterior margin slightly concave, rather 

 longer than the outer ; costal vein thick at the base, extending to 

 beyond the middle of the costa ; subcostal vein with the first branch 

 arising about one-fourth the length of the wing, second a little 

 beyond it, and before the extremity of the discoidal cell, third branch 

 arising at two-thirds the length of the wing, and extending in a 

 slight curve to the tip, fourth branch straight, arising half-way 

 between it and the apex, which it reaches just below the tip ; the 

 terminal portion of the vein deflexed ; upper disco-cellular vein very 

 short, outwardly oblique, arising at one-third from the base of the 

 wing ; middle disco-cellular vein curved outward ; lower disco-cel- 

 lular vein long, curved outward, and uniting with the third branch 

 of the median vein at a little distance beyond its origin, closing the 

 cell at a little more than one-third the length of the wing. 



Hind-wings somewhat rounded ; anterior margin arched at the 

 base, from thence nearly straight to the apex, where it curves slightly 

 downward ; exterior margin rather longer than the anterior, rounded 

 and waved ; precostal vein curved outward ; costal vein curved, ex- 

 tending to the apex ; subcostal vein branching near its base ; upper 

 disco-cellular vein arising at a short distance from the base of the 

 subcostal branch ; lower disco-cellular vein obsolete, so that the cell 

 is open. 



Fore-legs of the male slender; femur scaly in front, beneath 

 clothed with fine long silky hairs ; tibia as long as the femur, 

 clothed with downy hairs ; tarsus two-thirds the length of tibia, 

 conical, covered with uniform hairs. 



Fore-legs of the female scaly ; femur with a few silky hairs be- 

 neath; tarsus rather longer than the male, truncated at the tip, 

 where it is finely spined beneath. 



Four hind-legs moderately long, of equal length ; tibia shorter 

 than the femur ; femur thickly scaled ; tibia thickly clothed with 

 short scaly hairs, with two rows of short thick spines; tarsus as 

 long as the tibia, thickly clothed at the sides and beneath with rows 

 of shoi't spines ; claws sharp, and much curved. 

 VOL. I. 2 a 



