The Canadian Entomologist

VOLUME 132, SEPTEMBER/OCTOBER 2000, NUMBER 5

BIODIVERSITY, SYSTEMATICS, MORPHOLOGY, AND EVOLUTION
COOK J - Four new species of Bdelyrus (Coleoptera: Scarabaeidae: Scarabaeinae) and a redescription of Bdelyrus lagopus …551
MARUYAMA M, AHN K-J - Redescription of Liparocephalus litoralis, and key to the species of Liparocephalus (Coleoptera: Staphylinidae: Aleocharinae) … 567

PHYSIOLOGY, BIOCHEMISTRY, DEVELOPMENT, AND GENETICS
MASSÉ A, VAN FRANKFNHUYZEN K, DEDES J - Susceptibility and vulnerability of third-instar larvae of the spruce budworm (Lepidoptera: Tortricidae) to Bacillus thuringiensis subsp. kurstaki … 573
BARRETT JW, LADD TR, PRIMAVERA MJ, RETNAKARAN A, SOHI SS, PALLI SR - Nucleopolyhedrovirus pathology in spruce budworm larvae … 581
LAMB RJ, MCKENZIE RIH, WISE IL, BARKER PS, SMITH MAH, OLFERT OO - Resistance to Sitodiplosis mosellana (Diptera: Cecidomyiidae) in spring wheat (Gramineae) … 591

BEHAVIOUR AND ECOLOGY
LAMB RJ, TUCKER JR, WISE IL, SMITH MAH - Trophic interaction between Sitodiplosis mosellana (Diptera: Cecidomyiidae) and spring wheat: implications for yield and seed quality … 607
APIGIAN K, WHEELWRIGHT NT - Forest ground beetles (Coleoptera: Carabidae) on a boreal island: habitat preferences and the effect of experimental removals … 627
ST JOHN MG, SHORTHOUSE JD - Allocation patterns of organic nitrogen and mineral nutrients within stem galls of Diplolepis spinosa and Diplolepis triforma (Hymenoptera: Cynipidae) on wild roses (Rosaceae) … 635
HUBER DPW, BORDEN JH, JEANS-WILLIAMS NL, GRIES R - Differential bioactivity of conophthorin on four species of North American bark beetles (Coleoptera: Scolytidae) … 649
SCHMAEDICK MA, SHELTON AM - Arthropod predators in cabbage (Cruciferae) and their potential as naturally occurring biological control agents for Pieris rapae (Lepidoptera: Pieridae) … 655
PLOWRIGHT CMS, SILVERMAN A - Nectar and pollen foraging by bumble bees (Hymenoptera: Apidae): choice and tradeoffs NOTE … 677
SILK PJ, LONERGAN GC, ALLEN DC, SPEAR-O'MARA J - Potential sex pheromone components of the saddled prominent (Lepidoptera: Notodontidae) NOTE … 681
INSECT MANAGEMENT
COSSENTINE JE, KUHLMANN U - Status of Ageniaspis fuscicollis (Hymenoptera: Encrytidae), an introduced parasitoid of the apple ermine moth (Lepidoptera: Yponomeutidae) NOTE … 685
FORUMS
GRIMALDI D, AGOSTI D - The oldest ants are Cretaceous, not Eocene: comment . . . 691
POINAR G, URBANI CB, BROWN A - The oldest ants are Cretaceous, not Eocene: reply … 695

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