PARNES. ISAPIS. 465 



Genus XXXVIII. ISAPIS. 



IsAPis E. Douhleday. 

 Melanis p. HUbner. 



Body robust: fore wings elongate-triangular, black, slightly glossed with purple, and bearing an oblique fulvous bar 



beyond the middle ; hind wings small, subtruncate, with the anal angle slightly prominent in the females. 

 Head broad, clothed with closely appressed hairs, those on the crown forming a transverse tuft. 



Eyes large, prominent, naked. 



Antenna, long ; articulations indistinct, not annulated with white ; terminated by a long, gradually formed, robust 

 club, curved at the tip, and obtuse. 



Labial Palpi minute, compressed, not visible from above, and not extending upwards above the level of one 

 fourth of the eyes, so that they are nearly horizontal ; clotlied beneatli with fine hairs ; terminal joint minute, 

 elongate-ovate in the males, shorter and more ovate in the females, and nearly naked. 

 Thorax robust. 



Fo7'e Wings elongate- subtriangular. Costal margin nearly straight, except at the tip ; apical angle subobtuse. 

 Apical margin considerably convex in the females, much less so in the males. Inner margin nearly straight. 

 Costal vein reaching to about the middle of the costa. Postcostal vein with only two branches ; the first 

 branch arising at a short distance beyond the discoidal cell, the postcostal itself being sliglitly angulated at a 

 little distance beyond the first branch where the discoidal cell terminates ; the second branch of the postcostal 

 arising at about half the distance between the extremity of the discoidal cell and the tip of the winf ; the 

 extremity of the postcostal vein running to the tip ; the upper discoidal vein forming, as it were, tlie con- 

 tinuation of the postcostal vein beyond the angle following the first branch of the postcostal. Upper disco- 

 cellular wanting : middle one short, nearly transverse, slightly curved ; arising before the first branch of the 

 postcostal vein: lower disco- cellular longer and more oblique, uniting with the third branch of the median vein 

 at a short distance beyond its origin. 



ITind Wings small, broad, not longer than the abdomen in the males; subtruncate along the outer margin. 

 Costal vein extending about five sixths of the length of the costa. Postcostal bi'anching at a moderate distance 

 from its base, arising much nearer the body than the precostal. Upper and lower disco-cellular veins very 

 slender, oblique, nearly in the same line; the former arising just beyond the branch of the postcostal, and the 

 latter united with the third branch of the median vein just beyond its origin. 



Fore Legs of the male minute, thick, rather densely clotlied with fine hairs. Tarsus elongate-oval, entii'e. Fore 

 Legs of the female nearly three times the length of those of the male, slender, scaly. Tarsal joints armed 

 beneath with fine spines. 



Four Hind Legs rather elongate, scaly ; two hinder tibia3 swollen and curved. Tarsi and tibire finely spined 

 beneath. Ungues prominent, curved, very acute ; pulvillus broad ; lateral appendages minute. 

 Abdomen of the male considerably elongate ; of the female shorter, ovate. 



The species of which this genus is formed bears considerable resemblance to those of Limnas, especially in the style of its colours ; 

 but it is at once distinguished from that, and, indeed, every other genus in the present family, by the postcostal vein of tiie fore wino-s 

 having only two branches, and the discoidal cell being closed previously to the emission of either of the postcostal branches. The under 

 side of the typical species, in addition to the fascia beyond the middle of the fore wings, is marked with a pale yellow bar running across 

 all the wings close to the body. 



ISAPIS. 



1. IsAPIS AoYRTUS. 



Papilio Agyrtus Cramer, Pap. pi. 183. f. B. C. ; Godart, Enc. M. ix. p. 590. n. 120. (Erycina 

 A.); E. Douhl. List Lep. Brit. Mus. pt. 2. p. 18. (Isapis A.); Doubl. Westw. Sj Hewits. Gen. 

 D. Lep. pi. 72. f. 5. 

 Melanis Agyrte HUbner, Vent. bek. Schm. p. 25. n. 200. 

 Surinam, Brazil, Pernanibuco. B. M. 



