NO. 1304. REVISION OF AMERICAN GELECHITD MOTHS— BIJSCK. 873 



Besides these two extreme varieties all intermediate forms occur 

 between them and what I call the normal form. While sing-le speci- 

 mens of the extreme varieties might easily be taken for different 

 species and while absolute proof to the opposite can not be obtained 

 except through breeding, I have no doubt but that they all belong 

 to one variable species. 



AI((i' e.cj.>anse. — 19 to 20 mm. 



IlahJtat. — California, Colorado. 



Ti/pr.—'No. 6385, U.S.N.M. 



Described from some 20 specimens of all varieties in the U. S. 

 National Museum; many others have ])een examined in the collections 

 of Messrs. Dietz, Kearfott, and Gillette. 



GELECHIA TRILINEELLA Chambers. 



GelechiairillneeJIa Citambees, Bull U. S. Geol. Surv., Ill, 1877, p. 125; IV, 1878, 

 p. 147.— Riley, Smith's List Lep. Bor. Am., No. 5499, 1891.— Busck, Dyar's 

 List Amer. Lep., No. 5742, 1903. 



In the Museum of Comparative Zoology in Cambridge I found six 

 types of this species, authenticated by Chambers' labels and agreeing 

 with his description. They are all, however, much faded. A fre.sh 

 specimen in LT. S. National Museum, which I have compared with the 

 types, exhibits the detail of the description better. Similar good 

 specimens 1 have examined in Dr. Dietz's collection, determined inde- 

 pendently b}^ him from the description. 



l/td/'tat. — Colorado, Arizona. 



GELECHIA BIANULELLA Chambers. 



Ocfteis hianuMla Chambers, ('inn. Quart. Journ. Sci., 1875, p. 225; Bull. LT. S. 



(Jeol. Surv., IV, p. 159; Journ. Cinn. Soc. Nat. Hist., II, 1880, p. 202, fig. 



15.— Riley, Smith's List Lep. Bor. Am., No. 5579, 1891. 

 Gelechia bianulella Busck, Dyar's List Amer. Lep., No. 5743, 1903. 

 Geleehia? ocellella Chambers, Bull. U. S. Geol. Surv., Ill, 1877, p. 126. 

 Gelechia oceleUa Chambers, Bull. U. S. Geol. Surv., IV, 1878, p. 145. — Riley, 



Smith's List Lep. Bor. Am., No. 5428, 1891. 



I have examined type of Gelechia ocelMJa in Professor Fernald's 

 collection and types of the same in Cambridge Museum: they are 

 identical and agree with his description. 



The synonomy with Oe^els hiamudeUd, I did not discover before I 

 saw in Dr. Dietz's collection a specimen labeled b}' Lord Walsingham 

 Oeseis himmulella. No authentic specimen from Chaml)ers of this 

 species exists, but I have no dou))t that the specimen is rightly named 

 by Lord Walsingham, as it faithfully agrees with Chambers' descrip- 

 tion, and if so it is the same as fhlechhi oeelleJJu. The description 

 of the two species are nearly identical and could well both have been 

 drawn from the same specimen. 



