228 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



X. oriunda Girt.* 



1874. Grt., Bull. Buff. Soc. Nat. Sci., n, 160, Lilhopliane. 

 HABITAT. Canada ; Wisconsin. 

 I have not seen the type and do not know where it is. 



X. semiusta Girt.* 



1874. Grt., 6th Kept. Peab. Ac. Sci., 34, Lifhopliane. 

 HABITAT. Canada; New York; Vermont; Maine. 

 A. type is in the British Museum; another in the Tepper collection. 



X. contenta Grt. 



1880. Grt., Can. Ent., xn, 216, Lithophane. 



HABITAT. California. 



The type is in the British Museum. 



X. fagina Morr.* 



1874. Morr., Bull. Buff. Soc. Nat. Sci., n, 115, Ullwpliane. 

 1887. Grt., Can. Ent., xix, 54, Lithophane. 



HABITAT. Massachusetts; New York. 

 The type is in the Tepper collection. 



X. oregonensis Harv. 



1876. Harv., Can. Ent., vm, 55, Lithophane. 

 HA.BITAT. Oregon; California; Colorado. 

 The type is in the Hy. Edwards collection. 



X. georgii Grt.* 



1875. Grt., Can. Ent., vn, 188, Lithophane. 

 1887. Grt., Can. Ent., xix, 55, Litlioplianr. 



HABITAT. Canada; Maine; New York; Northern and Eastern 

 States; Colorado. 

 The type is in the British Museum. 



X. anteunata Wlk.* 



1858. Wlk., C. B. Mus., Het., xiv, 1733, Xylhm. 

 1883. Saund., Fruit Insects, 138, f. 138, Lithophane. 



cinerea Riley. 



1871. Riley, 3d Rept. Ins. Mo., 135, f. 57, Xylhin. 

 1874. Grt., 6th Rept. Peab. Ac. Sci., 34, Lithophane. 

 1879. Grt., Bull. Geol.Surv., v, 201, pr. syn. 



1881. Riley, Index and Supplt. to Mo. Repts., 74, Lithophane. 



1882. Riley, Papilio, n, 43, 101, an sp. dist, ? 

 1882. Fernald, Papilio, u, 63, pr. syn. 



1891. Butler, Entomologist, xxiv, 211'. pr. syn. 



HABITAT. Canada to District of Columbia; west to Nebraska. 



Walker's type is in the British Museum and Dr. Kiley's specimens 

 are in the National Museum. The species lias an economic bibliography 

 not included here. 



