98 , THE CANADIAN ENTOMOLOGIST. 



summer, I think it probable that its wide-spread appearance as an injuri- 

 ous insect was due either to some special cause which had not existed 

 before, or to some unusual climatic condition, rather than to its having 

 established itself in a new habitat suitable to its reproduction and increase. 

 Furthermore, if the farmers can only be frightened sufficiently to induce 

 them to obtain the pamphlet under consideration and to follow closely the 

 advice which is there offered them, I cannot help thinking that before very 

 long Miss Ormerod will be able to relegate the Hessian Fly to a place 

 amongst the foes she has conquered. 



James Fletcher, President Entom. Soc. of Ontario. 



North American Lepidoptera : The Hawk j\Ioth.s of North 

 America, by A. Radcliffe Grote, A. M. Printed by Homeyer 

 and Meyer, Bremen, 1886. 



The above is the title of an interesting brochure by our old friend 

 Prof. Grote, who has done so much to advance our knowledge of the 

 North American moths. The press work is superb. For clearness of 

 print, nice paper, and excellent taste in the selection of contrasting type 

 for the heading of the sections, this work is a model. 



After a graceful dedication to Prof. William Saunders, former editor 

 of this journal, our author gives directions for collecting and preserving 

 insects, followed by a chapter on the relation and habits of the 

 Sphingidce. He then takes up their classification, beginning with the 

 sub-family Macroglossince, under which he includes the genera ITemaris, 

 Lepiscsia, Thyreus, Enyo and Deidamia. Then follow the sub-family 

 Chxrocampince^ including the genera Everyx, Ampelophaga, Deilonche, 

 Deilephila dXid. Phllampdus ; the sub-family ^///m;///^/;/^, including the 

 genera Calasyjnbolus, Faonias, Cressonia and Triptogon; and the sub- 

 family Sphingince, including Ceratomia, Daremtna, Diiudia, Dolba, 

 Phlegethontius, Atreus, Ellema, Sphinx and Dilophonota. 



The reason for establishing the new genus Deilonche for tersa, is not 

 very clear to me, nor do I feel so sure of the wisdom of establishing the 

 new genus Atreus for the reception of plebeiiis. The fact is, that while 

 studying the Sphingidce of New England, I found more genera than 1 

 well knew what to do with, and perhaps I am on that account less 

 disposed to look with favor on new genera. Our author says, " the type 

 (plebeius) is, I think, not congeneric with the European pinastri (the 



