THE CANADIAN ENTOMOLOGIST. 185 



any one for overlooking structural features in this group, or for re-describ- 

 ing species. I am of opinion that the short descriptions of Agrotids 

 published by Mr. Morrison in Bost. Proc, Dec, 1874, are too brief and 

 misleading to be cited. The species are hastily compared with others to 

 which they are not closely related, as scixigena with sigmoids, whereas 

 saxigena is, in my opinion, the same as imperita Hubn., from Labrador, 

 a very different species. In every case, as tar as I know the species, these 

 comparisons are wide of the mark and consequently deceptive, and since 

 the other characters given are very short, it renders the identification of 

 the species intended improbable, if not impossible. It is necessary to 

 observe the structure of the front, eyes, and the armature of the legs, in 

 order to present intelligible descriptions in the Noctuidae. In addition to 

 his frequent failure to do this, Mr. Morrison uses such terms for color as 

 " gray " and " yellow " in a manner which, to me at least, is misleading. 

 There is an air of exactness about Mr. Morrison's definitions which I do 

 not find justified on examining his types. 



Schinia media Morr., Proc. Bost. S. N. H., 123, 1S75. 



Under this name Mr. Morrison has re-described Plagiomimicus pityo- 

 chromus Grote, Bull. B. S. N. S., I., 182, 1873. The genus differs from 

 Schinia by the frontal structure and very decidedly ; Polenta Morr. is a 

 rlosely allied form, and probably the genera are not sufficiently distinct. 

 The markings of the two species  pityochromus and 7'epperi, show much 

 the same pattern. 



Cera mica rubefacta Morrison. 



Under this name Mr. Morrison has re-described Mamestra vindemialis 

 Guen. and Grote. Mamestra congermana, described by Mr. Morrison as 

 .1 Hadena, but which has hairy eyes, is allied to vindemialis. 



Luccria loculata Morr., Bull. B. S. N. S.. II., no, 1874. 



Under this name Mr. Morrison has re-described Hadena passer Guen. 



Agrotis perqniritata. 



Polia perqniritata Morr., Proc. Bost. Soc. N. H., 136, 1874. 



Mr. Morrison's description of this species, which has the tibiae armed 



