NORTH AMERICAN LASPEYRESIINAE AND OL.ETHREUTINAE 57 



Hind wing with veins 3 and 4 connate or short stalked. 



Genitalia figured from reared specimens in National Collection 

 from the type locality (Jan. 11 and 24, 1886). 



Specimens in National Museum, American Museum, and collection 

 Barnes from California. 



Alar expanse. — 12-15 mm. 



Type. — In American Museum. 



Type locality. — Alameda County, Calif. 



Food plant. — Cupressus viacrocarpa (larvae feeding upon the 

 seeds). 



23. LASPEYRESIA PROSPERANA (Kearfott) 



(Figs. 144, 324) 



Grapholitha succedana Walsingham (not SchiffermuUer), Illus. Lepid. 



Heter. Brit. Mus., vol. 4, 1879, p. 97. 

 Thiodia succedana Fernald, in Dyar List. N. Amer. Lepid., no. 5169, 1903. 

 Enarmonia prosperana Kearfott, Can. Ent., vol. 39, 1907, p. 128. 

 Eucosma succedana Barnes and McDunnough, Check List Lepid. Bor. 



Amer., no. 7088, 1917. 

 Laspeyresia prosperana Barnes and McDunnough, Check List Lepid. Bor. 



Amer., no. 7247, 1917. 



What Walsingham determined as the European succedana from 

 Oregon is undoubtedly what Kearfott described as prosperana. The 

 two are very similar in pattern and genitalia; but appear to be 

 distinct. Our American form must at the very least be kept as a 

 separate race. It has the costa of the harpe much more strongly 

 curved than has succedana, and the cucullus differently shaped. 

 Each has a short prong arising from the side of the aedoeagus 

 near middle, and the organ slender, tapering and decidedly curved. 



Genitalia figured from specimens in National Collection from 

 Field Brook, Calif. (H. S. Barber, "19-05-03," male), and Easton, 

 Wash, (female paratype). 



Distribution. — Colorado, Utah, California, Washington, Alberta, 

 British Columbia, Alaska. 



Alar expanse. — 13-18 mm. 



Type. — In American Museum. 



Type locality. — San Luis Obispo, Calif. 



24. LASPEYRESIA LEUCOBASIS Busok 



(Figs. 157, 332) 



Laspeyresia leucohasis Busck, Proc. Ent. Soc. Washington, vol. 18, 1916, 

 p. 152. — Barnes and McDunnough, Check List Lepid. Bor. Amer., 

 no. 7248-1, 1917. 



Similar to prosperana but distinguished by genitalia and the char- 

 acters given in our key. Hind wing wdth veins 3 and 4 stalked. 



