THE GAKADIAH ENTOilOLOGIST. 2^ 



apart from his scientific attainments, has the finest collection of North 

 American Diurnal Lepidoptera in existence. We can, therefore, have full 

 confidence in his ability to carry out satisfactorily the magnificent work he 

 has undertaken, of which the part before us is a worthy beginning. This 

 part contains five large quarto plates of various species of Argynnis, viz. A 

 Diana, Cyhele, Aphrodite, Nokomis and Atlantis, accompanied by descrip- 

 tive letterpress of a valuable character. It is noteworthy that little or 

 nothing is known of the larvae of any of these five species, shewing us how 

 much still remains to be done by Entomologists, and how far even the 

 Bi:M;terfly field is from being worked out. Though the work is necessarily 

 costly, it is yet one which no Lepidopterist can afford to be without, while 

 at the same time it deserves the hearty support of all Entomologists, no 

 matter to what order they devote their attention. Its publication at intervals 

 of three months renders the expense of the subscription less onerous than 

 were it to appear more frequently. 



EXCHANGES. 



European Neuroptera. — Mr. R. McLachlan (20, Limes Grove North, 

 Lewisham, London, S.E., England), the well-known student of Neuroptera, 

 desires to exchange European insects of this order for Canadian ones, — 

 Phryganidœ especially desired, but all will be acceptable. Specimens for 

 transmission may be sent to the Editor of this Journal, Kev. C. J. S. 

 Bethune, Credit, Ont. 



CARABiD-ffi. — I should like to open a correspondence with any Entomolo- 

 gist in regard to exchanges of Coleoptera, especially Carahidee. — Philip S. 

 Spragde, 141 Broadway, So. Boston, Mass. 



Lepidoptera. — Canadian Lepidoptera, especially species of Caiocala ( C. 

 relicta in particular) desired in exchange for American Lepidoptera. — James 

 Angus, We?t Farms, N.Y. 



Lepidoptera. — In addition to the species mentioned in No. 1., Mr. G. 

 W. Peck, of New York, desires the following : — Arctia partkenos, Catocala 

 relicta^ C. hriseis, Lycœna pembina, and other more northern or eastern 

 Lepidoptera. Good XJ. S. specimens in exchange. Apply to the Editor 

 C. E. 



TO CORRESPONDENTS. 

 M. S. R., Wooler, Ont. — Your specimens reached us in good order, 

 thanks to careful packing. No. 1 is a rare wood boring beetle whose larva 

 infests the Lombardy poplar, Balm of Gilead, and other trees ; its name is 

 Frionus brevicornis, Fab.; we should be glad of more specimens of it, if you 

 have them to spare. No. 2 is, as you thought, the larva of the Cecropia 



