174 THE CANADIAN ENTOMOLOGIST. 



moths feeding on fallen plums and apples, but that ordinarily the moth 

 was not at all common in Ontario. 



Prof. Riley considered that the Aletia flew to the north when super- 

 abundant in its natural home in the cotton growing regions of the South ; 

 that it fed there on some malvaceous plant, lived a year, but not probably 

 longer, and then was no longer to be found in northern localities until 

 another emigration took place when it again became numerous. He did 

 not think that it could possibly live for more than a few generations in the 

 Northern States or Canada. 



Mr. Mann was of opinion that it must live for years in the North, 

 finding some suitable food plant, though like very many other insects it 

 was frequently scarce and then suddenly appeared in great numbers. 



Dr. Lintner stated that he had found the moth at an altitude of 1800 

 feet on the Adirondack Mountains, and that Dr. Hoy had informed him 

 that he had taken the larva in June at Racine. 



Dr. E. L. Mark described some points in the anatomy of the Coccidce. 



The list of papers having been exhausted, the Section now adjourned, 

 to meet next year in Cincinnatti, Ohio. 



ON LIGHTNING BUGS. 



BY JOHN L. LECONTE, M. D., PHILADELPHIA, PA. 



Read before the Sub-Section of Entomology, American Association for the Advancement 

 of Science, Boston, Mass., August, 1880. 



Since the publication of my synopsis of Lampyridae in 185 1 (Proc. 

 Acad. Nat. Sc. Phila , 1851, 331), but few species of the family have been 

 described in this country, and no very important improvement has been 

 made in their classification ; about the same time I published in the 

 Journal of the same Society (New Ser., i., 73) a synopsis of Lycidoe, one 

 of the sub-families of Lampyridae. This last mentioned synopsis is one 

 of my early and crude contributions to science, which, if the study of 

 Natural History had been farther advanced in this country, would have 

 been kindly suppressed, or returned to me for revision In the Classifi- 

 cation of the Coleoptera of N. Am., I have established the family with 



