NORTH AMERICAN LASPEYRESIINAE AND OLETHREUTINAE 67 



Hind win<r with pecten from lower median vein, in male this is 

 developed as a narrow, long hair pencil concealed in a deep, semi- 

 elliptical, closely appressed pocket lying along basal half of vein 

 2 ; 8 veins ; 6 and 7 approximate toward base ; 3 and 4 stalked ; 2 from 

 cell before middle in male, normal in female; inner margin (in male) 

 developed into a shallow pocket filled with broadly spatulate white 

 scales above, and rough scaling beneath. 



Hind tibia and basal joint of hind tarsi of male dilated and clothed 

 with dense, latterally appressed scale tufts above and below. 



Male genitalia with harpe simple; outer surface unspined; cucul- 

 his well defined, evenly and heavily spined; neck incurvation slight; 

 neck smooth except at base of cucullus; sacculus simple, rather 

 densely clothed with fine, short, hairlike spines. Tegmen elongate; 

 inner posterior margins scobinate; posterior lateral extremities some- 

 times produced into hornlike projections resembling a widely 

 bifurcate uncus. Uncus absent. Socii absent. Gnathos scarcely 

 defined, very weakly chitinized. Aedoeagus straight, tapering 

 sharply before middle and continued as a very slender tube; simple 

 or with a lateral spur from near middle ; cornuti absent. 



Abdomen of male simple. 



Female genitalia with two thornlike signa. Ductus bursae short, 

 unchitinized. Bursa copulatrix with neck evenly and strongly 

 granulate. 



A monotypic genus derived from the toreuta group of Lmpeyresia. 



MELISSOPUS LATIFERREANUS (Walsingham) 

 (Figs. 2, 9, 31, 32, 33, 34, 35, 36, 112, 113) 



Carpocapsa latiferreana Walsingham, IUus. Lepid. Heter. Brit. Mus., vol. 



4, 1879, p. 70. 

 Melissopus aurichalccana Riley, Trans. St. Louis Acad. Sci., vol. 4, 1881, 



p. 323. 

 Melissoims latiferreanus Fernald, in Dyar List N. Amer. Lepid., no. 5295, 



1903. — Barnes and McDunnough, Checl£ List Lepid. Bor. Amer., no. 



7269, 1917.— Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 1924, 



p. 397. 

 Cydia inqiiilina Kearb'ott, Trans. Amer. Ent. Soc, vol. 33, 1907, p. 55. 

 Carpocapsa inquilina Barnes and McDunnough, Check List Lepid. Bor. 



Amer., no. 7276, 1917. 



An extremely variable species in color, size, and structure, and 

 one which seems to be in the process of breaking up into several 

 races or even species. In extreme forms (A and G) the male geni- 

 talia differences are very striking, but they do not correspond with 

 either size or color differences and in large series from different 

 localities there are so many intergrades that division into clearly 

 definable races is impossible. I list below the forms that I have seen. 

 54346—26 6 



