8 U.S. NATIONAL MUSEUM BULLETIN 280 



genera in which the uncus is similar, in varying degrees, to that of 

 the phycitines. 



A number of other features are generally, but not exclusively, 

 characteristic of the Peoriinae. In all species the males have two to 

 five (possibly more) basal antennal segments fused to some degree, 

 the exact number often varying within a species. Longitudinal wing 

 markings are more common than transverse ones, and the ocelli 

 are well developed in all the species examined. 



Inasmuch as the present state of our knowledge is so unsatisfactory, 

 the author hopes to undertake studies of the group on a world basis 

 to better deal with the problem. The interpretation of just how 

 closely the Phycitinae and the Peoriinae are related will depend in 

 part on how homologies between the male genitalic structures of the 

 two groups are interpreted, and in part on the significance of the 

 compressed ovipositor. A better understanding of this problem will 

 require examination of the genitalic structures of all the species, 

 and perhaps studies of their embryology and soft-part anatomy as 

 weU. Life history studies would be extremely valuable and should 

 help to elucidate the functional significance of the compressed 

 ovipositor. 



Subfamily Peoriinae * Hulst 



Hulst, 1890, p. 102. 



Diagnosis. — Similar to Phycitinae; distinguished by spicate 

 modifications of uncus in males and by highly compressed ovipositor 

 of females. 



Description. — Labial palpi weU developed, maxillary palpi mod- 

 erate to very small; male antennae with basal segments of shaft 

 variously fused; tongue reduced; ocelli well developed. 



Forewing maculation predominantly longitudinal; transverse bands, 

 when present, usually expressed as dots, more rarely solid; 10 or 11 

 veins; Ri free from ceU; R3+4 stalked; Kg absent; Mi free from cell; 

 Cu2 free from ceU. Hind wing with 6 or 7 veins; Rs closely approximate 

 to or stalked with Sc-f Ri beyond cell; frenulum of female simple. 



Male genitalia with uncus bearing spicate processes. Gnathos 

 various, usually bearing medial process. Transtilla absent (except 

 in Goya). Juxta well developed, various. Vinculum well developed. 

 Eighth abdominal segment without special hair tufts. 



Female genitalia with ovipositor strongly compressed. Eighth 

 abdominal segment compressed, rarely well expanded anteriorly. 

 Apophyses well developed, approximately equal in length. Ductus 



1 Based upon North American species. 



