226 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



S. sidiis Gn.* 



1852. Gn., Spec. Gen., Noct., 1,386, /Scojif^osoma. 

 1856. W]k., C. B. Mus., Het., x, 454, Eiq>siUa. 



1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 191, Scopelosoma. 



1874. Grt., Bull. Buff. Soc. Nat. Sci., ir, 71, Scopclosoma. 

 vinulenta Grt. 



1864. Grt., Proc. Eut. Soc. riiil., ii, 440, pi. 9, f. 6, Dichagramma. 



1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 191, pr. syn. 



1874. Grt., Bull. Buff". Soc. Nat. Sci., ii, 70, an sp. dist. 

 1882. Grt., New List, 32, an var. sidns. 



1884. Thaxter, Can. Ent., xvr, 32, life history. 



Habitat. — Texas; New York, and northward. 



Guenee's type is in tbe British Museum and is like Mr. Grote's vin- 

 ulenta. 



S. niorrisoni Grt.* 



1874. Grt., Bull. Buff. Soc. Nat. Sci., ii, 70, ^copeJosoma. 

 1884. Thaxter, Can. Eut., xvi, 30, life history. 



Habitat. — New York; Massachusetts, nortliward to Canada. 

 The type is in the British Museum. 



S. devia Grt.* 



1874. Grt., Proc. Ac. Nat. Sci. Phil., 1874, 209, Scopelosoma. 

 1884. Thaxter, Can. Eut., xvi, 33, life history. 



Habitat. — New York and northward. 

 This type is in the British Museum. 



Geuus LITHOLOMIA Grt. 

 1875. Grt., Can. Eut., vii, 206. 



L. napae Morr.* 



1874. Morr., Proc. Bost. Soc. N. H., xvii, 152, Scopelosoma. 



1875. Grt., Can. Ent., vii, 206, 207, pi. I, f. 4, LiihoJomia. 



Habitat. — Canada in May; Massachusetts; New York; Northern 

 and Eastern States; Colorado; California in September. 



I have not seen tlie type, nor do I know where it is at present. 



L. dunbaii Harv. 



1876. Harv., Can. Ent., viii, 52, EaSena. 



Habitat. — Vancouver. 



The type is in the Edwards collection and is fully congeneric with and 

 closely allied to napcc Morr. It is scarcely likelj^ tliat the two will 

 l)roverto be identical, but the differences are reducible to small varia- 

 tions in markings and are in no sense generic. I have handled a very 

 large luimber of specimens of napcc, without finding a dunban among 



them. 



Genus XYLINA Oclis. 

 1816. Ochs., Schuiett. Eur., iv, 85. 



I use this name in preference to Lithophanc because both are cata- 

 logue names and Xylina has ])riority. The Verzeichniss Avas not pub 

 lished until 1818 at least. All tlie species vso far as known to me ap- 

 pciir in autumn, hibernate, and reappear in early spring. 



