*!!« 



dianadian diutomologist 



VOLXJIVIE XLIII 



No. 12. 



CONTENTS. 



Dod — Further Notes on Alberta Lepidoptera 393 



McDermott — Light-emission of American Lampyrida; .... 599 



Second International Congress of Entomology 406 



Girault — The Genus Arthrolytus 407 



Davis — Notes on two Conocephalids 413 



Crosby — A new species of Derostenus 414 



Bowditch — Further Notes on Diabrotica 41d 



Yothers — Perillus claudus a beneficial insect 418 



Lyman — North American species of Grapta in the British Museum 418 



Fyles — Gncrimoschema septentrionella, n. sp 422 



Entomological Society of America 422 



Index 423 



EDITED BY 



DR. E. M. WALKER, 



BIOLOGICAL DEPARTMENT, 

 UNIVERSITY OF TORONTO, TORONTO. 



Editor Emeritus: REV. C. J. S. BETHUNE. 



DECEMBER, 1911. 



LONDON 



LONDON PRINTING AND LITHOGRAPHING COMPANY. 



1911. 



