CONTENTS 



L FROM THE EDITOR 1 



Q. SUBMITTED MANUSCRIPTS 



C. S. SHEFFIELD, S. M. WE ST BY, P. G. KEVAN and R. F. SMITH — Winter management 

 options for the orchard pollinator Osmia lignaria Say (Hymenoptera: Megachilidae) in Nova 

 Scotia 3-18 



C. D. SCOTT-DUPREE, C. R. HARRIS, M. MOINEDDIN and J. LEBOEUF — Flight 

 activity and susceptibility to insecticides of variegated cutworm, Peridroma saucia (Hiibner) 

 attacking field tomatoes in southwestern Ontario 19-25 



P. PAQUIN, N. DUPERRE, A. MOCHON, M. LARRI V EE and C. SIMARD. — Additions to 

 the spider fauna of Quebec (Araneae) 27-39 



L. CONROY, C. D. SCOTT-DUPREE, C. R. HARRIS, (.. M I RPHY and A. B. BROADBEN T 

 — Susceptibility of two strains of American serpentine leafminer (Liriomyza trifolii (Burgess)) 

 to registered and reduced risk insecticides in Ontario 41-47 



A. SKANDALIS, A. ESHGHI and M. J. BIDOCHKA — Alternative mRNA splice variants in 

 Drosophila DL2 cells following flock house virus infection 49-58 



S. M. REHAN and M. H. RICHARDS — Morphological and DNA sequence delineation of 

 two problematic species of Ceratina (Hymenoptera: Apidae) from Eastern Canada 59-67 



III BOOK REVIEW 



J. VICKRUCK — Insects: Their Natural History and Diversity. 2006. by S. A. Marshall 



69-70 



IV. IN MEMORIAM — Dr. Edward Coulton Becker (1923 - 2008) 71-72 



V. INSTRUCTIONS TO AUTHORS 73-75 



VL ENTOMOLOGICAL SOCIETY OF ONTARIO inside back cover 



VII. APPLICATION FOR MEMBERSHIP inside back cover 



Mil. NOTICE TO CONTRIBUTORS inside back cover 



