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could not identify it in the collection of the British Museum. 

 M. Guenee had received it from Canada in a collection which 

 reached him just before my visit to Chateaudun. In conversation 

 he suggested the name Reptmtis for the species, and I told him 

 that we should call it by this name when we illustrated it. 



The correction should be made in my recently published list 

 of our species of Agrotis, and the name Rcpentis restored. The 

 description of Dr. Harris is repeated on page 444 of the Third 

 Edition of his Report. Prof. Riley's Cochraiiii should keep the 

 place, to which I have assigned it, as a synonym of Repcntis. 



In my collection are several forms of Agrotis, which more or 

 less closely resemble Repentis. Among these are Rubefactalis, 

 which has the markings and dusky fuscous ground color of Re- 

 pcntis, but has a distinct rusty, or reddish shading over thorax 

 and fore-wings. It is from Washington Territory. Then there 

 is Friabilis, a small species from Canada, which has" the markings 

 quite obliterate. It is colored like Repentis, of which it may be 

 a small form or variety. Another species is Pleuritica, from 

 Canada, which has the male antennae more deeply pectinated, 

 but the markings are much like Repentis. The color is a little 

 brighter and ochrey. Other species, chiefly from the West, 

 which approach Repentis, are : Balanitis, Fuscigera, Brunneigera 

 and Micronyx. 



Whether Segetum is an American species is doubtful as yet. 

 I have described a species, many years ago, as Texana, and figured 

 it, which I have thought since might be Segetum. My type is 

 probably in Philadelphia, and I have had no second specimen to 

 compare. I have seen what may be the species in a collection 

 from Colorado, sent to me to name by the Rev. Mr. Hulst. It 

 is not improbable that the Texan species and the one from 

 Colorado should be the same, since the two localities have other 

 forms in common. It is also known that in California and Texas 

 there are instances where the same species occur, and at the 

 same time not in the Eastern States. Such examples are 

 Orthosia Posticata and Heliothis Cnpes ; while two of the Texan 

 species of Ammoconia are found also in Arizona. 



In the Missouri Reports I have found that most, if not all, of 

 the new noctuidse there described as new were, in reality, known 

 to science ; and Professor Riley's names must be added to the 

 synonymy of previously described species. They are as follows t 



Agrotis Cochranii, Riley is A. Repentis G. and R. 



Agrotis Scandens, Riley may be A, Messoria H. 



Acronycta Populi, Riley is A. Lepusculina G. 



Prodenia Aiitmnnalis, Riley is Laphygma fruGIPERDA A. 

 and S. 



Xylina Cinerca, Riley is X. Antennata, Walk. 



Plusia Brassiicc, Riley may be P. Ni. Hubn. 



As to this last, it is difficult to believe that the American 



