518 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io5 



R2 and R3; MA separating off from MP at base into a free sinuate 

 section, then coalescing with Rs; MP forking into MPl-1-2 and 

 MPS +4 basad of center of wing; Cul separating from Cu2 near base 

 of wing; anal veins simple; usually two radial cross-veins, sometimes 

 both to R2 ; two sectoral cross-veins, one between R2 and R3 and one 

 between R3 and R4+5; one radiomedial cross-vein; two medial cross- 

 veins between MA and MP and one between MP14-2 and MP3+4; 

 one mediocubital, one cubital, one cubito-anal and one anal cross- 

 vein; seven outer gradates; thyridia on all outer gradates except 2d 

 r and m-cu cross-veins. 



Male genitalia: Tenth sternite with claspers similar to those of 

 Sisyra. 



Female genitalia: Similar in structure to Sisyra. Eighth tergite 

 not appearing fused midventrally in nirvana; third sternite shorter 

 than second; fourth to sixth sternites with posterior pale spots 

 prominent. 



In general, Sisyrina closely approaches Sisyra, the principal dif- 

 ference being the occurrence of a well-developed series of outer 

 gradates in both the fore and hindwings. The termination of Sc 

 (atrophying or free to margin) at the apex is also worthy of note. 



The genus Sisyrina has thus far been taken in India only, and con- 

 tains one species, nirvana Banks, from southern India (Nedungatu), 

 which has been examined. 



Genus Sisyrella Banks 



Nopia Navds, 1910, p. 397 (not Walker, 1862, preoccupied in Lepidoptera). 



Sisyrella Banks, 1913, pp. 216, 218, new name, Nopia Navas. — Kriiger, 1923, 



p. 45.— Navas, 1935, p. 70. 



Genotype: Nopia nikkoana Navas, by monotypy (Navas, 1910, 

 p. 397). 



It was not possible to procure for study any determined specimens- 

 belonging to this genus. The genera Sisyra, Climacia, and Neurorthus\ 

 are so distinct from each other in regard to wing venation, palpi, and 

 genitalia that the question arises as to whether the distinctive char- 

 acters in Sisyrella are sufficient to warrant its designation as a separata 

 genus. On this basis, it might seem that minuta and panama, and 

 others of the apicalis group, might also be placed in different genera 

 from Sisyra. The following description is based upon the works of 

 Navas (loc. cit.). 



Head: Maxillary palpi with terminal segment broader basally,! 

 tapering at apex; labial palpi with terminal segment triangle-shaped,; 

 similar to Sisyra. 



FoREWiNG (pi. 1, fig. 8): Costal area with about ten cross-veinS? 

 before pterostigma; subcostal area with one basal subcostal cross-vein; 



