392 PROCEEDINGS OF THE NATIONAL MUSEUM vol. us 



this study will stimulate collectors to provide additional specimens 

 and biological data. 



The author wishes to acknowledge with thanks the cooperation 

 and aid of the following persons who have allowed him to study the 

 types and specimens in their charge: Mr. J. D. Bradley of the British 

 Museum (Natural History) ; Dr. J. G. Franclemont of Cornell Univer- 

 sity; Dr. H. J. Hannermann of the Institut fiir Spezielle Zoologie and 

 Zoologisches Aluseum der Humbolt-Universitat zu Berlin; and Dr. 

 Fritz Kasy of the Naturhistorisches Museum, Vienna, Austria. 



The author also wishes to thank Mr. Andre Pizzini for the genitalic 

 drawings and distribution maps included in this paper and Mr. Jack 

 Scott for the photographic work. 



The work on this paper was aided in part by the National Science 

 Foundation on Grant GB-1800. 



History: The genus Falculina was described by Zeller (1877) for 

 a new species, ochricostata, which he described from a single female 

 specimen. Meyrick (1916) redescribed the genus, added a new 

 species, lepidota, and gave a brief description of a male from French 

 Guiana believed by him to be that of ochricostata. One year later 

 Aleyrick (1917) described a new species, antitypa, and reported that 

 this new species was described from the French Guiana material he 

 had mistakenly identified as ochricostata. He also states that he is 

 "indebted to Mr. A. Busck for examples of the true ochricostata from 

 Panama, distinguishable from antitypa by the smaller size, partial 

 rosy tinge of forewings, and especially by having 7 and 8 of the fore- 

 wings stalked, as Zeller correctly states." Fifteen years later Meyrick 

 (1932) described F. caustopis from a single male specimen from Brazil. 

 Busck (1934) listed Falculina and the four described species in the 

 Stenomidae part of the Lepidopterorum Catalogus series. Clarke 

 (1955) selected lectotypes and illustrated the genitalia and w4ngs of 

 antitypa and lepidota in his study of the Meyrick types in the British 

 Museum (Natural History) . 



Genus Falculina Zeller 



Falculina Zeller, 1877, Hor. Soc. Ent. Rossica, vol. 13, p. 385. 



Type species: Falculina ochricostata Zeller, by monotypy. 



Head rough, lateral tufts spreading. Labial palpus moderately 

 long, recurved; second segment thickened with appressed scales; 

 apical segment acute, shorter than second. Forewing with costa 

 slightly arched, apex falcate, termen concave, tornus rounded, with 

 12 veins, 3 and 4 connate, 5 approximate to 3 and 4, 7 and 8 stalked 

 or separate, 7 to termen. Hindwing broader than forewing; with 8 

 veins, 3 and 4 connate, 5 closely approximate to 3 and 4, 6 and 7 



