The Canadian Entomologist
VOLUME 129, JULY/AUGUST 1997, NUMBER 4
CONTENTS
LAURENCE PACKER and JOHN S. TAYLOR - FORUM: How many hidden species are there? An application of the phylogenetic species concept to genetic data for some comparatively well known bee "species"...587-594
NEVILLE N. WINCHESTER - FORUM: The arboreal superhighway: arthropods and Iandscape dynamics ...595-599
R.G. VAN DRIESCHE. R. CHILDS, R.A. CASAGRANDE, and L. TEWKSBURY - Establishment, distribution, and impact in southern New England of Lathrolestes nigrioIIis (Thompson) (Hymenoptera: Ichneumonidae), an introduced parasitoid of the birch leafminer, Fenusa pusilla (Lepeletier) (Hymenoptera: Tenthredinidae)...601-611
RJ. WEST, D. THOMPSON, K.M.S. SUNDARAM, A. SUNDARMAM, A. RETNAKARAN, and R. MICKLE - Efficacy of aerial applications of Bacillus thuringiensis Berliner and tebufenozide against the eastern hemlock looper (Lepidoptera: Geometridae)...613-626
HEATHER C. STEWART and SANDRA J. WALDE - The dynamics of Aphis pomi De Geer (Homoptera: Aphididae) and its predator, Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae), on apple in Nova Scotia...627-636
THOMAS J. WEISSLING, TAMERA M. LEWIS, LES M. McDONOUGH, and DAVID R. HORTON - Reduction in pear psylla (Homoptera: Psyllidae) oviposition and feeding by foliar application of various materials...637-643
KEVIN W. WANNER, BLAIR V. HELSON, and BARRY C. KOSTYK - Foliar and systemic applications of neem seed extract for control of spruce budworm, Choristoneura fumiferana (CIem.) (Lepidoptera: Tortricidae), infesting black and white spruce seed orchards...645-655
J.R. VERDÚ, J.P. LUMARET, and E. GALANTE - Biology of Aphodius hyxos Petrovitz (Coleoptera: Scarabaeoidea: Aphodiidae) and description of the third larval stage...657-665
M.A. EDWARDS and W.D. SEABROOK - Evidence for an airborne sex pheromone in the Colorado potato beetle, Leptinotarsa decemlineata...667-672
VERNON R. VICKERY - RubrogryIIus coloratus, a new cricket genus and species (Grylloptera: Gryllidae: Gryllinae) from Baja California, Mexico...673-677
T. PANKIW - Queen rearing by high and low queen mandibular pheromone responding worker honey bees (Apis mellifera L.)...679-690
MARIE-JEANNE PERROT-MINNOT and ROY A. NORTON - Obligate thelytoky in oribatid mites: no evidence for Wolbachia inducement...691-698
YVES BOUSQUET and SERGE LAPLANTE - Taxonomic review of the New World Pogonini (Coleoptera: Carabidae)...699-731
GORDON PRITCHARD and ANDREA KORTELLO - Roosting. perching, and habitat selection in Argia vivida Hagen and Amphiagrion abbreviatum (Selys) (Odonata: Coenagrionidae), two damselflies inhabiting geothermal springs...733-743
A.K. MIITCHELL, R.W. DUNCAN, T.A. BOWN, and V.G. MARSHALL - Orgin and distribution of the yew big bud mite, Cecidophyopsis psilaspis (Nalepa), in British Columbia...745-755
TIMOTHY G. MYLES - A second species of the drywood termite genus Marginitermes (Isoptera: Kalotermitidae)...757-768
STEWART B. PECK and PEDRO GNASPINI - Ptomaphagus inyoensis n.sp., a new microphthalmic montane beetle from California (Coleoptera, Leiodidae; Cholevinae; Ptomaphagini)...769-776
J.H.M. LEFERINK and G.H. GERBER - Development of adult and nymphal populations of Lygus lineolaris (Palisot de Beauvois). L elisus Van Duzee, and L borealis (Kelton) (Heteroptera: Miridae) in relation to seeding date and stage of plant development on canola (Brassicaceae) in southern Manitoba...777-787
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