The Canadian Entomologist
VOLUME 131, MAY/JUNE 1999, NUMBER 3
BIODIVERSITY, SYSTEMATICS, MORPHOLOGY AND EVOLUTION
NIETO NAFRĶA JM, ORTEGO J, MIER DURANTE MP - Three new species of Aphis (Hemiptera: Aphididae) living on Mulinum (Umbelliferae) in South America ... 283
BRAILOVSKY H, CASSIS G - Revision of the tribe Agriopocorini (Hemiptera: Coreidae: Coreinae) ... 293
PHYSIOLOGY, BIOCHEMISTRY, DEVELOPMENT, AND GENETICS
TOURNEUR J-C - Oogenesis in the adult of the European earwig Forficula auricularia (Dermaptera: Forficulidae) ... 323
TOURNEUR J.C - Polyploidy and previtellogenic follicular atresia during oogenesis in the European earwig Forficula auricularia (Dermaptera: Forficulidae) ... 335
BEHAVIOUR AND ECOLOGY
FLOATE K, KHAN B, GIBSON G - Hymenopterous parasitoids of filth fly (Diptera: Muscidae) pupae in cattle feedlots ... 347
WESTCOTT LC, WINSTON ML - Chemical acaricides in Apis mellifera (Hymenoptera: Apidae) colonies; do they cause nonlethal effects? ... 363
SCHAFELLNER C, BERGER R, DERMUTZ A, FUHRER E, MATTANOVICH J - Relationship between foliar chemistry and susceptibility of Norway spruce (Pinaceae) to Pristiphora abietina (Hymenoptera: Tenthredinidae) ... 373
LAMB RJ, WISE IL, OLFERT OO, GAVLOSKI J, BARKER PS - Distribution and seasonal abundance of Sitodiplosis mosellana (Diptera: Cecidomyiidae) in spring wheat ... 387
LI SY, FITZPATRICK SM, TROUBRIDGE JT, SHARKEY MJ, BARRON JR, O'HARA JE - Parasitoids reared from the obliquebanded leafroller (Lepidoptera: Tortricidae) infesting raspberries ... 399
DEBRUYN AMH, RING RA - Comparative ecology of two species of Hydroporus (Coleoptera: Dytiscidae) in a high arctic oasis ... 405
HARTLING LK, CARTER N, PROUDE J - Spring parasitism of overwintered eggs of Lambdina fiscellaria fiscellaria (Lepidoptera: Geometridae) by Telenomus near alsophilae (Hymenoptera: Scelionidae) ... NOTE ...421
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