1893.] HB. E. Y. WATSON OX THE HESPERIIB.T. 43 



Fore wing : outer margin longer than inner margin : no costal 

 fold in male : cell less than two-thirds the length of eosta ; vein 

 12 reaching eosta shortly before the end of cell; discocellulars 

 suberect ; vein 5 nearer 6 than 4 ; veiulet from lower discocellular ; 

 vein 3 well before end of cell, twice as far from 2 as from 4 ; vein 2 

 twice as far from end of cell as from base of wiug. Hind wing much 

 produced ; vein 7 nearer to base of wing than to end of cell ; disco- 

 cellulars and vein 5 very faint ; vein 3 immediately before end of 

 cell ; vein 2 three times as far from base of wing as from end of 

 cell. Hind tibiae with two pairs of spurs. 



platon, Fabr. 



('oniined to tropical America. 



The genus Garcju of Mabille (' Le Xiituraliste,' p. 216, 1889), 

 described for the species olena, is apparently congeneric with cono- 

 (jnathus, and olena is probably identical with platon. 



2. Genus Arteurotia. 



Jrteurotia, Butler & Druce, Cist. Ent. i. p. 112 (1872). 



Type, tractipennis, Butler, Druce. 



Antennae : club rather robust, hooked, terminal portion short, 

 less than half the length of club. Palpi porrect, widely separated ; 

 third joint obtusely conical. Fore wing : outer margin rather longer 

 than inner margin ; inner margin convex in its outer half ; cell of 

 fore wing less than two-thirds the length of eosta ; vein 12 reaching 

 eosta opposite end of cell ; discocellulars suberect, the lower the 

 longer ; vein 3 shortly before end of cell, twice as far from 2 as 

 from 4 ; vein 2 twice as far from end of cell as from base of wing. 

 Hind wing elongate, outer margin straight ; discocellulars distinct ; 

 vein 5 barely traceable ; vein 3 immediately before end of cell ; 

 vein 2 hardly nearer to end of cell than to base of wing. Hind 

 tibiae with two pairs of spurs. 



The male is without a costal fold, but is provided with a large 

 silky patch of appressed scales, occupying the apical half of the hind 

 wing on the upperside. 



tfadipennis, But)., Druce. 



Confined to tropical America. 



3. Genus Sophista. 



ISophista, Plotz, Stett. ent. Zeit. xl. p. 176 (1879). 



Type, arista teles, Westw. 



Antennte : club moderate, bent into a hook, terminal portion very 

 slender, less than half the length of remainder of club. Palpi 

 porrect, widely separated ; third joint obtusely conical. Fore wing : 

 inner and outer margins subequal ; cell of fore wing less than two- 

 tliirds the length of eosta ; vein 12 reaching eosta almost opposite 

 the end of cell ; discocellulars suberect, the lower the longer ; vein 3 

 shortly before the end of cell, more than twice as far from 2 as from 

 4 : vein 2 more than twice as far from end of cell as from base of 



