900 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



The followino- is a rather extreme hut hy n.o means unique example 

 of some of Chambers' descriptions, which will serve to illustrate the 

 difficulties connected with recognizing some of his species of which 

 his types are lost, especially when it is borne in mind, that there is no 

 assurance that the insects he placed under Gelechia belongs to the 

 famil}'^ Gelechiidae even: 



Palpi simple. Pale yellowish white, lightly dusted with fuscous, the dusting more 

 dense toward the apex of the primaries. Al. exp. | inch. Season, May and August. -J 

 Possibly a variety of O. subalbusella. 



The description of GelecMa svhaXbuaella is still more laconic and 

 reads in full: 



Second joint of the palpi not thickened. Creamy white, sparsely dusted with 

 ochreous yellow and brown. 



Habitat. — Texas. 



• GELECHIA PULLIFIMBRIELLA Clemens. 



Gelechia pullifimbriella Clemens, Proc. Ent. Soc. Phila., 11, I860, p. 120; Stain- 

 ton Ed. N. Am. Tin., 1872, pp. 223, 225.— Chambers, Bull. U. S. Geol. Surv., 

 IV, 1878, p. 146.— Riley, Smith's List Lep. Bor. Am., No. 5455, 1891.— 

 BuscK, Dyar's List Amer. Lep., No. 5822, 1902. 



Type is lost and description is insufficient for generic determination 

 of the species. 



Habitat. — Pennsylvania 'i 



GELECHIA PULLUSELLA Chambers. 



Gelechia pullusella Chambers, Can. Ent., VI, 1874, p. 237; Bull. U. S. Geol. Surv., 

 IV, 1878, p. 146.— Riley, Smith's List Lep. Bor. Am., No. 5456; Busck, 

 Dyar's List Amer. Lep., No. 5823, 1902. 



The type is lost and the description is insufficient for determination. 

 Jlab Itat. — Texas . 



GELECHIA PUNCTIFERELLA Clemens. 



Gelechia pimctiferella Clemens, Proc. Ent. Soc. Phila., 11, 1864, p. 119; Stain- 

 ton Ed. N. Am. Tin., 1872, pp. 222, 224.— Chambers, Bull. U. S. Geol. 

 Surv., IV, 1878, p. 146. ^ Riley, Smith's List Lep. Bor. Am., No. 5457, 1891.— 

 Busck, Dyar's List Amer. Lep., No. 5824, 1902. 



The type is lost and the description is insufficient for final generic 

 determination. 



llahltat. — Pennsylvania? 



GELECHIA SIMPLICIELLA Chambers. 



Gelechia slmplicidla Chambers, Cinn. Quart. Journ. Sci., II, 1875, p. 238; Bull. 

 U. S. Geol. Surv., IV, 1878, p. 147.— Riley, Smith's List Lep. Bor. Am., 

 No. 5483, 1891.— Busck, Dyar's List Amer. Lep., No. 5825, 1902. 



The type is lost and definite determination of the species impossible 

 from the description. 



