TURNOCK, W.J., G. BOIVIN, and R.A. RING - Interpopulation differences in the coldhardiness of Delia rudicum (Diptera: Anthomyiidae) …119-129
FLOATE, K.D., and B.D. GILL - Seasonal activity of dung beetles (Coleoptera: Scarabaeidae) associated with cattle dung in southern Alberta and their geographic distribution in Canada …131-151
VERNON, R.S., and J .R. MACKENZIE - The effect of exclusion fences on the colonization of rutabagas by cabbage flies (Diptera: Anthomyiidae) …153-162
BAOUA BOUKARY, I., J. GINGRAS, and J.-C. TOURNEUR - Influence of diet on oviposition and survival of Forficula senegalensis Serville (Dermaptera: Forficulidae) ...163-167
BAOUA BOUKARY, I., J.-C. TOURNEUR, and J. GINCRAS - Influence of diet on larval development of Forficula senegalensis Serville (Dermaptera: Forficulidae) under laboratory conditions …169-172
GODIN, C., and G. BOlVIN - Seasonal occurrence of lepidopterous pests of cruciferous crops in south western Quebec in relation to degree-day accumulations …173-185
HILTON, S.A., J.H. TOLMAN, D.C. MACARTHUR, and C.R. HARRIS - Toxicity of selected insecticides to several life stages of Colorado potato beetle Leptinotarsa decemlineata (Say) …187-194
PALACIOS-VARGAS, J.G., and J.-M. THIBAUD - Two new Mexican Isotogastrura (Collembola: Isotogastruridae) …195-199
TRUDEL, R., R. LAVALLE, and E. BAUCE - Gonadal development and egglaying response of female white pine weevils reared on artificial and natural diets …201-214
FIDGEN, J.G., and E.S. EVELEIGH - Life history characteristics of Elachertus cacoeciae (Hymenoptera: Eulophidae), an ectoparasitoid of spruce budworm larvae, Choristoneura fumiferana (Lepidoptera: Tortricidae) …215-229
SZOCS, C., D. HENDERSON, and J.N. McNEIL - Old World pheromone strain in the New World: Sex attractant composition for the currant borer, Synanthedon tipuliformis Cl. (Lepidoptera: Sesiidae), in Canada …231-234
PACHAGOUNDER, P., R.J. LAMB, and R.P. BODNARYK - Resistance to the flea beetle Phyllotreta cruciferae (Coleoptera: Chrysomelidae) in false flax, Camelina sativa (Brassicaceae) …235-240
SCIENTIFIC NOTES
PACHAGOUNDER, P., and R.J. LAMB - Feeding preferences of a flea beetle, Phyllotreta cruciferae (Coleoptera: Chrysomelidae), among wild crucifers …241-242
EBLING, P.M., and W.J. KAUPP - Yield of occlusion bodies from spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae), larvae infected with a nuclear polyhedrosis virus …243-244
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