Forum
Insect-Plant Food Webs Could Provide New Clues for Pest Management.
Graciela R. Valladares and Adriana Salvo . . . . 539
Physiological and Chemical Ecology
Factor from Swamp Water Induces Hatching in Eggs of Anopheles diluvialis
(Diptera: Culicidae) Mosquitoes.
Truls Jensen, David A. Carlson, and Donald R. Barnard . . . . 545
Chemically-Mediated Attraction of Ichneumon (=Pterocormus) promissorius
(Hymenoptera: Ichneumonidae) Males by Females.
Darryl K. Jewett and James E. Carpenter . . . . 551
Active Spaces of Pheromone Traps for Plodia interpunctella (Lepidoptera:
Pyralidae) in Enclosed Environments.
R. W. Mankin, R. T. Arbogast, P. E. Kendra, and D. K. Weaver . . . . 557
Ovipositional Response of Tobacco Hornworm Moths (Lepidoptera: Sphingidae) to Tobacco
Plants Grown Under Elevated Levels of Ozone.
D. Michael Jackson, A. S. Heagle, and R.V.W. Eckel . . . . 566
Temperature Related, Stage-Specific Development and Fecundity of Colonizing and
Root-Feeding Morphs of Pemphigus populitransversus (Homoptera: Aphididae) on Brassica.
T. A. Royer, J. V. Edelson, and M. K. Harris . . . . 572
Ecology of Mountain Pine Beetle (Coleoptera: Scolytidae) Cold Hardening in the
Intermountain West.
B. J. Bentz and D. E. Mullins . . . . 577
Influence of Host Plant Damage on the Host-Finding Behavior of Mamestra brassicae
(Lepidoptera: Noctuidae).
Julio C. Rojas . . . . 588
Community and Ecosystem Ecology
Allen-Vac: An Internal Collection Bag Retainer Allows for Snag-Free Arthropod Sampling
in Woody Scrub.
Kendall H. Osborne and William W. Allen . . . . 594
Spatial and Temporal Distribution of Ground Beetle (Coleoptera: Carabidae) Assemblages
in Riparian Strips and Adjacent Wheat Fields.
B. Wade French and Norman C. Elliott . . . . 597
Population Ecology
Aggregation Sites for Adult European Corn Borers (Lepidoptera: Crambidae): A Comparison
of Prairie and Non-Native Vegetation.
John M. Pleasants and Royce J. Bitzer . . . . 608
Spatial Distribution of Nests of Nasutitermes sp. (Isoptera: Termitidae) in a
Cerrado Area in Southeastern Brazil.
Maria Luisa Tunes Buschini . . . . 618
Oviposition Site Selection by the Predatory Midge Aphidoletes aphidimyza
(Diptera: Cecidomyiidae).
Eric Lucas and Jacques Brodeur . . . . 622
Preference Variation in the Polyphagous Tiger Swallowtail Butterfly (Lepidoptera:
Papilionidae).
J. L. Bossart and J. Mark Scriber . . . . 628
Bark and Ambrosia Beetle (Coleoptera: Scolytidae) Responses to Volatiles from Aging
Loblolly Pine Billets.
C.A.H. Flechtmann, M. J. Dalusky, and C. W. Berisford . . . . 638
Attraction of Ambrosia Beetles (Coleoptera: Scolytidae) to Different Tropical Pine
Species in Brazil.
C.A.H. Flechtmann, A.L.T. Ottati, and C. W. Berisford . . . . 649
Simulation of Topographic and Daily Variation in Colony Activity of Pogonomyrmex
occidentalis (Hymenoptera: Formicidae) Using a Soil Temperature Model.
Thomas O. Crist and Jennifer A. Williams . . . . 659
Inherited Sterility in Codling Moth (Lepidoptera: Tortricidae): Effect of
Substerilizing Doses of Radiation on Field Competitiveness.
S. Bloem, K. A. Bloem, J. E. Carpenter, and C. O. Calkins . . . . 669
Genetic Structure of the Bovicola ovis (Mallophaga: Trichodectidae) in
Southwestern Australia.
Alan J. Lymbery and Ian R. Dadour . . . . 675
Effects of Habitat Patch Size and Temperature on the Distribution and Abundance of
Ground Beetles (Coleoptera: Carabidae) in an Old Field.
Thomas O. Crist and Robert G. Ahern . . . . 681
Transition of Diapause Attributes in the Hybrid Zone of the Two Morphological Types of Psacothea
hilaris (Coleoptera: Cerambycidae).
Yoshinori Shintani and Yukio Ishikawa . . . . 690
Physiological Not Behavioral Adaptations of Leafminers to a Resistant Host Plant: A
Natural Selection Experiment.
D. J. Hawthorne . . . . 696
Pest Management and Sampling
Effect of Alfalfa-Grass Intercrops on Insect Populations.
Todd A. Degooyer, Larry P. Pedigo, and Marlin E. Rice . . . . 703
Predictability and Measurability of Bacillus thuringiensis Efficacy Against
Spruce Budworm (Lepidoptera: Tortricidae).
B. J. Cooke and J. Regniere . . . . 711
Quadrat Sample Precision and Cost with a High-Vacuum Insect Sampling Machine in Cotton
Ecosystems.
Joe Ellington and Morris Southward . . . . 722
Biological Control
Effects of an Artificial Diet and Varied Environmental Conditions on Longevity of Coeloides
pissodis (Hymenoptera: Braconidae), a Parasitoid of Dendroctonus frontalis
(Coleoptera: Scolytidae).
Patrick L. Mathews and Frederick M. Stephen . . . . 729
Seasonal Abundance of Spider Mites and Their Predators
on Red Raspberry in Quebec, Canada.
Michele Roy, Jacques Brodeur, and Conrad Cloutier . . . . 735 
Aspects of the Biology of Hyssopus pallidus (Hymenoptera: Eulophidae), a
Parasitoid of the Codling Moth (Lepidoptera: Olethreutidae).
Tania Zaviezo and Nick Mills . . . . 748
Host Location by House Fly (Diptera: Muscidae) Parasitoids in Poultry Manure at
Different Moisture Levels and Host Densities.
Christopher J. Geden . . . . 755
Microbial Agents Bacillus thuringiensis ssp. israelensis and Bacillus
sphaericus Suppress Eutrophication, Enhance Water Quality, and Control Mosquitoes in
Microcosms.
Tianyun Su and Mir S. Mulla . . . . 761
Population Dynamics of Three Coccinellids in Flue-Cured Tobacco and Functional Response
of Hippodamia convergens (Coleoptera: Coccinellidae) Feeding on Tobacco Aphids
(Homoptera: Aphididae).
M. Leonard Wells and Robert M. McPherson . . . . 768
