PAilPHILmi: TllK GENUS PHYCANASSA. 1601 



Fore winj; (42 : 12) almost twice as lonj; as broad ; tlie lower outer angle falling consid- 

 erably beyond the middle of the costal margin ; the costal margin gently convex at the 

 base, beyond nearly straight ; tlie outer margin regularly and gently convex, the ti|) not at 

 all produced. Costal uervure terminating a little beyond the middle of the costal margin ; 

 the subcostal nervure distant from the costal margin, the" second ncrvulc arising just 

 before the middle of the wing; cell more than three-llflhs as long as the wing, rather 

 slender, nearly equal in its distal half; llrst median nervule arising before the middle 

 of the cell, the second at the middle of the wing; internal uervure rather long, apically 

 turnetl upward gradually and striking the submedian. 



Hind wing a fourth longer than broad; the costal area strongly lobed at the base; 

 the costal margin beyond it scarcely convex ; outer margin strongly and regularly 

 rounded above the middle of the medio-submedian interspace which is slightly excised ; 

 the anal angle well rounded. First median uervule arising before the branching of tlie 

 subcostal at the middle of the basal half of the wing, the cell being unusually short. 



Legs with slight clothing; the femora with thin fringes of not excessively long, 

 curving hairs; all the tibiae furnished with distant, delicate, erect spines, generally 

 larger and more erect upon the anterior outer surface, longer and more prominent iu 

 the middle pair; femora 2, 1, 3 ; tibiae 2, 3, 1 ; tarsi 3, 2, 1 ; fore femora distinctly and 

 consideraiily longer than the hind pair, and about three-quarters the length of the 

 middle pair; fore tibiae only a little more than half as long as the fore femora, and 

 half the length of the middle tibiae, which are barely longer than the hind tibiae; 

 foliate epiphysis of fore tibiae conspicuous, originating at about the middle of the 

 tibia, and extending somewliat beyond its tip, shaped like the longitudinal half of a 

 a cylinder, apically tapering and bluntly pointed ; the other tibiae furnished at tip beneath 

 with a pair of very unequal, long and slender spurs ; the hind tibiae also with a similar 

 pair of subequal spurs, slightly beyond the middle of the under surface ; tarsal joints 

 1, 2, 3, 4, 5, excepting on the fore tarsi, where the apical joint is nearly half as long 

 again as the penultimate; fore tarsi a little longer than the middle tibiae, a little more 

 than two-thirtls as long as the hind tarsi ; all the tarsi with a triple row of moderately 

 long, delicate spines, the apical ones of each joint slightly longer than the others ; 

 basal joint of the tarsi scarcely as long as the rest together; second joint nearly three- 

 flfths as long as the first; claws not very large, delicate, strongly falciform, pointed, 

 overhung by a pair of long, curving, divergent bristles, as long as the apical joint; 

 pulvillus large, rounded ; paronychia with the lateral lobe broad, short, tapering, 

 scarcely more than half as long as the claw, apically rounded; inferior lobe threadlike 

 or slender, cylindrical, of similar shape, both delicately covered with hairs. 



Upper organ of male abdominal appendages of small size, not so long as the clasps, 

 very strongly arched, much broader than high, of irregular surface; the short, nearly 

 straight fingers of the hook and the lateral arms lie side by side, and are apparently 

 soldered, excepting next the extreme tip, where all meet, after a slight lacuna. Clasps 

 very large and very broad and equal throughout the upper edge, beyond a deep pre- 

 apical notch, denticulate. 



Of this genus, composed as far as known of only a single species, whose 

 distribution is given below, only the perfect insect is known. 



The butterflies are among the largest of our Pamphilidi, and are 

 remarkable for their large, broad wings, with a form of marking very 

 like an exajjorerated Poanes. The males and females differ in the color 

 of the spots on the upper surface of the fore wings. 



