378 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol. xxix. 



Genus PLATYPROSTERN A, new genus. 



With the characters of Natada as modilied in the description of 

 Eujpro^terna^ but the male antennse large and stout, with long pectina- 

 tions, reaching to the tip. 



Type. — Platyprosterna el^etta Dyar. 



PLATYPROSTERNA EL^ETTA, new species. 



The description of Euprosterna elmasa will appl}" to this also. The 

 moth is larger, broader, and squarer winged and the line is more 

 basally placed, running from the outer third of costa to before middle 

 of inner margin. 



Localities. — Two males, Sao Paulo, Brazil (E. D, Jones) ; Rio Janeiro, 

 Brazil (W. Schaus); one in the British Museum from Sao Paulo, and 

 several in Mr. E. D. Jones's collection. 



TV^e?.— Cat. No. 8989, U.S.N. M. 



PLATYPROSTERNA ANTIQUA, new species. 



Ocherous brown on basal half of fore wings; a narrow l)rown line 

 from outer fourth of costa to middle of inner margin with a narrow, 

 whitish outer border. Beyond the line, pale creamy brownish, a 

 slender dark line from costa, half wa}^ l)etween inception of first line 

 and apex to anal angle, gradually approaching the termen, and at the 

 angle very faintly continued along inner margin to first line. Hind 

 wings testaceous whitish, the fringe darker, creamy. Below all a 

 little more brownish; no marks. 



Expanse. — 18 mm. 



Localities. — One male, Burchell collection in the Hopeian Museum 

 at Oxford, taken November 5, 1828, in Brazil; two specimens in the 

 collection of Mr. E. D. Jones, Castro, Parana, Brazil. 



PLATYPROSTERNA CERES Druce. 



Perola ceres Druce, Biol. C'ent. Am., Lep. Het., I, 1887, p. 219. 

 Localities. — Mexico ; Guatemala. 



Genus NATADA Walker. 

 Natada Walker, Cat. Brit. Mus., V, 1855, p. 1108. 



NATADA QUADRATA Walker. 



Semyra quadrata Walker, Cat. Brit. Mus., V, 1855, p. 1132. 

 Natada quadrata Kirby, Cat. Lep. Het., 1892, p. 541. 



Locality. — Venezuela. 



The spurs of the hind legs are reduced, but present. I observed in 

 Walker's type specimen one stout apical spur and two very small 

 middle spurs. The species resembles Sisyrofiea., but has a dark dif- 

 fused half-band on inner margin. 



