88 ME. E. y. WATSON ON THE HESPERIID^E. [Jan. 17, 



less conspicuous, being hardly visible on the upperside, but appear- 

 ing below as a pale oval streak. This inconspicuous nature of the 

 male mark in fuscula would doubtless account for its being over- 

 looked by Heer Snellen, especially if the specimens he examined 

 were at all worn. This species can be separated from pullir/o by 

 having the underside of the hind wing entirely unmarked, and by 

 the beautiful plum-like bloom of the upperside. This last character 

 is only apparent in fresh specimens, those in the Hewitson collection 

 in the British Museum having faded to a dull brown. Fuscula 

 seems to be confined to Celebes, while pulligo ranges from Assam 

 throughout Burma, Malacca, Java, Borneo, Sulu. and Palawan, and 

 also occurs in Southern India. 



30. Genus Eumesia. 



Eumesia, Felder, Reise Novara, p. 504 (1867). 



Type, semiargentea, Feld. 



Antennae short, less than lialf the length of costa ; club stout, 

 arcuate, tip acuminate. Palpi porrect ; third joint very slender, 

 bluntly pointed. Fore wing : inner margin considerably longer 

 than outer margin ; cell less than two-thirds the length of costa ; 

 vein 12 reaching costa almost opposite the end of cell ; vein ."> 

 slightly nearer to 4 than to 6 ; vein 3 well before end of cell, much 

 curved in its course; vein 3 slightly nearer to base of wing than to 

 end of cell. Hind wing : outer margin evenly rounded ; vein 7 

 shortly before end of cell ; discocellulars and A'ein ^ barely traceable : 

 vein 3 immediately before end of cell ; vein 3 nearer to end of cell 

 than to base of wing. No epiphysis on fore tibiae. Hind tibiae with 

 terminal pair of spurs only, but beset with numerous short spines 

 on the lower surface. 



semiargmtea, Feld. 



Confined to tropical South America. 



31. Genus Argopteron, nov. 



Type, aureipennis, Blanch. 



Antennae more than half the length of costa ; club moderate, 

 straight, elouiiate, tip blunt. Palpi porrect ; second and third joints 

 slender, clothed to the ti]) with laxly set scales. Fore wing : costa 

 very straight, inner margin considerabl)' longer than outer margin ; 

 cell less than two-thirds the length of costa ; vein 12 reaching costa 

 before the end of cell ; upper discocellular slightly longer than 

 lower ; vein .5 slightly nearer to 4 than to 6 ; vein 3 shortly before 

 the end of cell ; vein 2 more than twice as far from end of cell as 

 from base of wing. Hind wing : outer margin rounded ; vein 7 

 close to end of cell ; vein .5 well developed, slightly nearer to 6 than 

 to 4 ; vein 3 close to end of cell ; vein 2 slightly nearer to base of 

 wing than to end of cell. Fore tibife very long, without epiphvsis. 

 Hind tibiae with only terminal pair of spurs. Abdomen reaching 

 well beyond the anal angle of the hind wings. 



aiireiponnU,'Ei\&nc\i 1. | pueltne, Csly, 2. 



