32 BULLETIN 132, UNITED STATES NATIONAL MUSEUM 



Male abdominal tufts consisting entirely of fine hairs. 



Hind wing with veins 3 and 4 connate of very short stalked. 



Genitalia figured from specimens in National Collection from 

 Mount Tzouhalem ("24-V-23, E. H. Blackmore No. 439," male) 

 and Wellington, British Columbia ("T. Bryant, VI," female). 



Distribution. — British Columbia, California, Colorado, Nevada. 



Alar expanse. — 10-14 mm. 



Types. — In British Museum (caeruleana) ; American Museum 

 (sana and vana). 



Type localities. — Rogue River, southern Oregon, {caei^leana) ; 

 Wellington, British Columbia {zana) ; Colfax, Placer County, 

 Calif, {vana). 



7. GRAPHOLITHA VITRANA Walsingham 

 (Figs. 131, 303) 



GraphoUtha vitrana Walsingham, Illus. Lepid. Heter. Brit. Mus., vol. 4, 



1879, p. 65. 

 Enarmonia vitrana Feenald, in Dyar List N. Amer. Lepid., no. 5278, 1903. 

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



Amer., no. 7230, 1917. 



Paratype in National Collection. 



Similar and very close to the preceeding but apparently distinct. 

 The white dusting on the middle of fore wing forms (in normal 

 specimens) an indistinct pale median somewhat larger transverse 

 shade which is much fainter or entirely lacking in caeruleana; vi- 

 trana also has somewhat larger male genitalia and a differently 

 shaped genital plate in the female. 



The cornuti of the two species are similar (one or two rather 

 long stout attached spines and a cluster of shorter deciduous ones) ; 

 in caei^leana there are two of the permanently attached spines Avhile 

 in vitrana there appears to be only one. The latter species is some- 

 what variable. In some specimens the hind wing is distinctly pale 

 (whitish) toward base while in others it is evenly dark throughout. 



Male abdominal tufts consisting of mixed flattened and cylindrical 

 hairs. 



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



Genitalia figured from specimens in National Collection from 

 Carmel, Calif. ("A. H. Vachell, IV."). 



Specimens in National Collection, American Museum, and collec- 

 tion Barnes from California. 



Alar expense. — 15-16 mm. 



Type. — In British Museum. 



Type locality. — Northern Oregon. 



