136 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



X. alticola Siiiitli. 

 1890. Git., Proc. U. S. Nat. Mus., xiii, 42o, Xyloithasia. 



Habitat. — Gibson Mountaius, Colorado, 12,500 feet. 

 The ty\}^ is in the National Mnsenm. 



X. ducta Grt.* 

 1878. Grt., Bull. Gcol. Surv., iv, 176, Badeiui. 



Habitat. — Maine; Canada; New York; Washington. 



The type is in the British Mnsenm, and is the species I know as such. 

 Dr. Bethnne sent me a specimen marked insulsa by Walker; but the 

 type of insulsa is Carneades campestris. 



X. impulsa Gn.* 



1852. Gn., Spec. Gen., Noct., i, 194, J/ames^cffl. 

 1856. Wlk.. C. B. Mus., Het., ix, 231, Mamcsfra. 

 1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 108, Hadena. 

 var. mixta Grt. 



1880. Grt., Bull. Geol. Surv.. vi, 264, Hadena. 



Habitat. — Canada in July and iVugnst. Eastern and Middle States 

 June and July; Texas. 



Mr. Grote's types are in the British Museum. The variety mixta has 

 the reniform somewhat pale marked, and the specimen isalittlerubbed 

 so as to show a yellowish ground. Else it does not differ from the type 

 form. 



X. devastatrix Brace.* 



1819. Brace, Am. Jouru. Sci., i, 154, Fhahvna. 

 1856. Fitch, Rept. lus., N. Y., 315, pi. 3, f. 2, Jj/ro«.s'. 

 1862. Harris, Inj. lus., Flint ed., 445, Ayrotls. 

 1869. Riley. 1st Kept. Ins. Mo., 83, Ayrolis. 

 1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 108, Hadena. 

 1875. Speyer, Stett. Ent. Zeit., xxxvi, 147, Hadena. 

 1878. Gri., Bull. Geol. Surv., iv, 178, Hadena. 



1881. Riley, Index and Supj)lt. to Mo. Repts., 56, Hadena. 

 1883. SauncL, Fruit Insects, 329, f. 341, 342, Hadena. 



ahjecta var. t Gn. 

 1852. Gn., Spec. Gen., Noct., i, 194, Mamesira. 

 1875. Speyer, Stott. Ent. Zeit., xxxvi, 147, Hadena. 



ordinarta Wlk. 

 1856. Wlk., C. B. Mus., Het.. ix. 232. Manustta. 

 1868. G. and R., Trans. Am. Ent. Soc, ii, 77, pr. syn. 



1882. Grt., 111. Essay, 43, pr. syn. 

 contenta Wlk. 



1856. ^Vlk., C. li Mas., Het., IX, 233, Mamestra. 

 1882. Grt., 111. Essay, 43, pr. syn. 



marshalluna Wcstw. 



1857. Humph., British Moths, i, 122, AyroUs. 



1858. Wlk., C. B. Mus., Het., xiv, \mfi= contenta. 



Habitat. — United States and Canada, June to Se])tember. 

 Walker's types are in the British Museum and have been correctlj^ 

 referred by Mr. Grote. The reference to marshallana is after Walker. 



