OF WASHINGTON. 207 



Psilocorsis reflexella Clemens. The same reason suffices to 

 disprove the synonymy of fagineUa Chambers, which has an 

 expanse of j-inch= 19 mm.* and of any of those species treated 

 by Chambers under that name.f Moreover, Chambers described 

 the larva of faginella, and his description could not apply to 

 quercicella. The size also eliminates Zeller's Psilocorsis 

 dubitclla, which, according to Zeller, has a wing length of 3-75. 

 lines. Having not bred faginella nor cryptolechiella I am un 

 able to pronounce on the synonymy of these species otherwise 

 than that they are not the same as quercicella Clemens. I have 

 bred, besides the two oak feeding species, two other extremely 

 similar, but equally distinct, species of this group, one from 

 Amelanchier and one from Carpinus, both with larvae different 

 from the oak feeding species. I venture to suggest the propriety of 

 leaving all the species separate for the present. 



Zeller at first included]: both Clemens' genera Psilocorsis and 

 Machimia in his Cryptolechia, but afterwards recognized them as 

 valid genera but included the type of Cryptolechia, the African 

 straminella Zeller, || in Machimia. Lord Walsingham showed^f 

 that straminella could not properly be included in Machimia, 

 and placed it in Psilocorsis* dropping that genus as a synonym < 

 of Cryptolechia. This, however, seems unwarranted, consider 

 ing the different palpi of this genus. Psilocorsis must stand, in 

 cluding the above-mentioned species and ferruginella Zeller 

 (confer tella Walker ?). 



Psilocorsis reflexella Clemens. 



Two types, both unspread, one without the wing on the right 

 side, Clemens' No. 112 ; alar exp., 22 mm. 



A specimen compared with the types is in the U. S. National 

 Museum. According to the conclusions expressed under the 

 foregoing species, Psilocorsis quercicella Zeller (nee Clemens) 

 and cressonclla Chambers would be synonymous with the present 

 species. 



Menesta tortriciformella Clemens. 



One type without abdomen and wings on the right side, Clem 

 ens' No. 100; alar exp., 9.5 mm. 



This type agrees with the present conception of the species.** 

 Lord Walsingham established the undoubtedly correct synonymy 



* Can. Ent.. iv, p. 92, 1872. 



tBull. U. S Geol. Surv., iv, pp. 84-86, 1878. 



J Verh. k. k. zool.-bot. Gesell. Wien, xxiii, p. 239, 1873. 



Hor. Soc. Ent. Ross., xiii, p. 259, 1887. 



||Hand. Kong. Svensk. Acad., p.' 107, 1852. 



Tflns. Life, ii, p. 151, 1890. 



** Proc. U. S. Nat. Mus., xxv, p. 902, 1902. 



