THE CANADIAN ENTOMOLOGIST. 179 



Prof. Fernald reported the capture in Maine of a suffused form, par- 

 tially yellow and part black. 



Dr. Hoy asked whether all tlie food plants of P. ajax were known. 

 He has found perfectly fresh specimens, and no pawpaw within 200 miles 

 of the place. The butterfly is often common, but he has never found the 

 food plant of the larva. 



Mr. Larkin had noticed at his station south of Syracuse that insects 

 were unusually scarce. The potato beetle even was very rare— not found 

 at all in some fields. He had noticed that when they have winters that 

 kill wheat, then usually the apple crop is good and there are few insects. 



Mr. Aaron said in reply to Dr. Hoy's query, that ajax would feed on 

 either spice-wood or upland huckleberry, as well as pawpaw. 



Dr. Hoy said they had the huckleberry, not the spice-wood. 



Mr. Osborn said he had seen ajax in Iowa where they had neither 

 pawpaw nor the huckleberry, and he thought no spice-wood. He also 

 reported a statement from Sioux City that there, Chrysochus aiiratus was 

 so common that they were crushed under foot on the streets. Was not 

 this unusual ? 



Mr. Mann said in the woods he had seen them piled in great heaps 

 upon the stones. 



(To be Contijiiied.) 



NEW CATALOGUE OF BUTTERFLIES. 



We are glad to learn that a new edition of the Catalogue of the 

 Diurnal Lepidoptera of America north of Mexico, by Wm. H. Edwards, 

 is now in press and will shortly be issued. Since the last edition was 

 published in 1877, a large number of new species have been described, 

 and much information gained with regard to the geographical distribution 

 of our butterflies. A work so much needed, prepared by so competent 

 an authority, will be of great value to all who are interested in this depart- 

 ment of Entomology. 



CORRESPONDENCE. 



Dear Sir : Mr. Lyman's objection to my statement of the size of 



aiigulifera is quite correct. No one could tell by it whether it was one 



inch or five in expanse of wing, and is only excusable from the nature of 



the communication, which was not a description of the insect, but only 



