Overwintering Mortality of Urophora affinis and U. quadrifasciata (Diptera: Tephritidae) on Spotted Knapweed: Effects of Larval Competition Versus Exposure to Subzero Temperatures.
Robert M. Nowierski, Bryan C. Fitzgerald, Gregory J. McDermott, and Jim M. Story . . . . 403

Weather-Dependent Pollinator Activity in an Apple Orchard, with Special Reference to Osmia cornuta and Apis mellifera (Hymenoptera: Megachilidae and Apidae).
Narcís Vicens and Jordi Bosch . . . . 413

Cold Tolerance of Four Species of Bark Beetle (Coleoptera: Scolytidae) in North America.
María J. Lombardero, Matthew P. Ayres, Bruce D. Ayres, and John D. Reeve . . . . 421

Sex Pheromone of Grape Berry Moth (Lepidoptera: Tortricidae).
P. Witzgall, M. Bengtsson, and R. M. Trimble . . . . 433

Laboratory Toxicity of Three Mosquito Oviposition Repellents to Six Nontarget Aquatic Invertebrates.
Rui-De Xue, Donald R. Barnard, and Arshad Ali . . . . 437

Influences of Host Chemicals and Internal Physiology on the Multiple Steps of Postlanding Host Acceptance Behavior of Ips pini (Coleoptera: Scolytidae).
Kimberly F. Wallin and Kenneth F. Raffa . . . . 442

Selection of Molting and Pupation Sites by Coleomegilla maculata (Coleoptera: Coccinellidae): Avoidance of Intraguild Predation.
Éric Lucas, Daniel Coderre, and Jacques Brodeur . . . . 454

Species Richness of the Campopleginae and Ichneumoninae (Hymenoptera: Ichneumonidae) Along a Latitudinal Gradient in Eastern North American Old-Growth Forests.
Elizabeth Lockard Skillen, John Pickering, and Michael Joseph Sharkey . . . . 460

Does Reduced-Impact Logging Help Preserve Biodiversity in Tropical Rainforests? A Case Study from Borneo using Dung Beetles (Coleoptera: Scarabaeoidea) as Indicators.
Andrew J. Davis . . . . 467

Maternal Effects on Gypsy Moth (Lepidoptera: Lymantriidae) Population Dynamics: A Field Experiment.
Mark C. Erelli and Joseph S. Elkinton . . . . 476

Effect of Thermoperiod on Diapause Induction of Sesamia nonagrioides (Lepidoptera: Noctuidae).
Argyro A. Fantinou and Elena A. Kagkou . . . . 489

Pre-Emergence Feeding in Bark Beetles (Coleoptera: Scolytidae).
William R. McNee, David L. Wood, and Andrew J. Storer . . . . 495

Shading Effects on Susceptibility of Rosa spp. to Defoliation by Popillia japonica (Coleoptera: Scarabaeidae).
William J. Rowe II and Daniel A. Potter . . . . 502

Factors Influencing Dispersal in Neonate Gypsy Moths (Lepidoptera: Lymantriidae).
Mark C. Erelli and Joseph S. Elkinton . . . . 509

Host Plants and Population Dynamics of the Ear Borer Mussidia nigrivenella (Lepidoptera: Pyralidae) in Benin.
Mamoudou Sétamou, Fritz Schulthess, Saka Gounou, Hans-Michael Poehling, and Christian Borgemeister . . . . 516

Paths of Formica neogagates (Hymenoptera: Formicidae) on Tree and Shrub Leaves: Implications for Foraging.
Ronald M. Weseloh . . . . 525

Effects of Plant Architecture on the Attack Rate of Leptomastix dactylopii (Hymenoptera: Encyrtidae), a Parasitoid of the Citrus Mealybug
(Homoptera: Pseudococcidae).
Raymond A. Cloyd and Clifford S. Sadof . . . . 535

ELISA Versus Immunolocalization to Determine the Association of Erwinia tracheiphila in Acalymma vittatum (Coleoptera: Chrysomelidae).
Carlos Garcia-Salazar, F. E. Gildow, S. J. Fleischer, D. Cox-Foster, and F. L. Lukezic . . . . 542

Biology of Callirhytis cornigera (Hymenoptera: Cynipidae) and the Arthropod Community Inhabiting Its Galls.
Eileen A. Eliason and Daniel A. Potter . . . . 551

Phenology-Based Field Monitoring for Consperse Stink Bug (Hemiptera: Pentatomidae) in Processing Tomatoes.
Eileen M. Cullen and Frank G. Zalom . . . . 560

Dose-Response Susceptibility of Pest Aphids (Homoptera: Aphididae) and their Control on Hydroponically Grown Lettuce with the Entomopathogenic Fungus Verticillium lecanii, Azadirachtin, and Insecticidal Soap.
V. Fournier and J. Brodeur . . . . 568

Abundance, Diversity, and Activity of Ants (Hymenoptera: Formicidae) in Oak-Dominated Mixed Appalachian Forests Treated with Microbial Pesticides.
Changlu Wang, John Strazanac, and Linda Butler . . . . 579

Influence of Corn Phenology on Adult Western Corn Rootworm (Coleoptera: Chrysomelidae) Distribution.
Stephanie J. Darnell, Lance J. Meinke, and Linda J. Young . . . . 587

Relationships Between Temperature and Life History Parameters of Muscidifurax raptor (Hymenoptera: Pteromalidae).
T. J. Lysyk . . . . 596

Survival of Archytas marmoratus (Diptera: Tachinidae) from Superparasitized Corn Earworm Larvae (Lepidoptera: Noctuidae).
J. E. Carpenter and F. I. Proshold . . . . 606

Interference of Steinernema carpocapsae (Nematoda: Steinernematidae) with Cardiochiles diaphaniae (Hymenoptera: Braconidae), a Parasitoid of Melonworm and Pickleworm (Lepidoptera: Pyralidae).
Hail K. Shannag and John L. Capinera . . . . 612

Improved Population Monitoring of Bark Beetles and Predators by Incorporating Disparate Behavioral Responses to Semiochemicals.
Brian H. Aukema, Donald L. Dahlsten, and Kenneth F. Raffa . . . . 618

Seasonal and Spatial Activity of Hymenopterous Pupal Parasitoids (Pteromalidae and Ichneumonidae) of the House Fly (Diptera: Muscidae) on Danish Pig and Cattle Farms.
H. Skovgård and J. B. Jespersen . . . . 630

Field Surveys and Evaluation of Native and Established Predators of the Hemlock Woolly Adelgid (Homoptera: Adelgidae) in the Southeastern United States.
Matthew S. Wallace and Fred P. Hain . . . . 638

Risk of Infection by the Fungal Pathogen Entomophaga maimaiga Among Lepidoptera on the Forest Floor.
Ann E. Hajek, Linda Butler, James K. Liebherr, and Micheal M. Wheeler . . . . 645

Exploiting Behavioral Disparities Among Predators and Prey to Selectively Remove Pests: Maximizing the Ratio of Bark Beetles to Predators Removed During Semiochemically Based Trap-Out.
Brian H. Aukema, Donald L. Dahlsten, and Kenneth F. Raffa . . . . 651

Narrow Host Range Nucleopolyhedrovirus for Control of the Browntail Moth (Lepidoptera: Lymantriidae).
Jenny S. Cory, Mark L. Hirst, Philip H. Sterling, and Martin R. Speight . . . . 661

Frontiers of Population Ecology. R. B. Floyd, A. W. Sheppard, and P. J. DeBarro [eds.]
Reviewed by Kenneth F. Raffa . . . . 668