Forum

Possibility for Recent Origin of the Gypsy Moth (Lepidoptera: Lymantriidae) Fungal Pathogen Entomophaga maimaiga (Zygomycetes: Entomophthorales) in North America. 
Ronald M. Weseloh . . . . 171

Pest Management and Sampling

Development and Validation of a Fixed-stuyPrecision Sampling Plan for Estimating Striped Cucumber Beetle (Coleoptera: Chrysomelidae) Density in Cucurbits. 
Eric C. Burkness and William D. Hutchison . . . . 178

Spatial Modeling of Preferred Wireworm (Coleoptera: Elateridae) Habitat. 
Stephen A. Lefko, Larry P. Pedigo, William D. Batchelor, and Marlin E. Rice . . . . 184

Variation and Consistency in Spatial Distribution as Measured by Taylor's Power Law. 
R.A.J. Taylor, R. K. Lindquist, and J. L. Shipp . . . . 191

Implications of Spatial Distribution of Insect Populations in Storage Ecosystems. 
Richard T. Arbogast, David K. Weaver, Paul E. Kendra, and Richard J. Brenner . . . . 202

Effect of Euonymus Scale (Homoptera: Diaspididae) on Euonymus spp. Survival in Southern New England, with Estimates of Economic Costs of Pest Damage. 
Roy Van Driesche, Phil Kingsley, Mike Rose, and Mike Bryan
217

Effect of Plant Phenology and Climate on Russian Wheat Aphid (Homoptera: Aphididae) Damage to Winter Wheat. 
T. L. Archer, G. D. Johnson, F. B. Peairs, K. S. Pike, and M. K. Kroening  . . . . 221

Community and Ecosystem Ecology

Association of Predaceous Hemiptera with Selected Crops. 
R. S. Pfannenstiel and K. V. Yeargan  . . . . 232

Invader Effects in a Community of Cavity Nesting Megachilid Bees (Hymenoptera: Megachilidae). 
John F. Barthell, Gordon W. Frankie, and Robbin W. Thorp  . . . . 240

Population Ecology

A Sixteen-Year Study on the Bivoltinism of Anomala flavipennis (Coleoptera: Scarabaeidae) in Mexico. 
Luis A. Rodriguez-Del-Bosque  . . . . 248

Influencing European Corn Borer (Lepidoptera: Crambidae) Aggregation Sites in Small Grain Crops. 
R. L. Hellmich, R. L. Pingel, and W. R. Hansen  . . . . 253

Hypersensitivity as a Phenotypic Basis of Plant Induced Resistance Against a Galling Insect (Diptera: Cecidomyiidae). 
G. Wilson Fernandes  . . . . 260

Does Forest Thinning Affect Predation on Gypsy Moth (Lepidoptera: Lymantriidae) Larvae and Pupae?
Shawn T. Grushecky, Andrew M. Liebhold, Richard Greer, and Robert Leo Smith  . . . . 268 

Field Biology of Paraleyrodes minei (Homoptera: Aleyrodidae) in Southern California. 
T. S. Bellows, Jr., C. Meisenbacher, and D. H. Headrick  . . . . 277

Harvester Ants and Fire in a Desert Grassland: Ecological Responses of Pogonomyrmex rugosus (Hymenoptera: Formicidae) to Experimental Wildfires in Central New Mexico.
Kelli Zimmer and Robert R. Parmenter  . . . . 282 

Modeling the Influence of Forest Characteristics and Ant (Formicidae: Hymenoptera) Predation on Dispersal and Survival of Neonate Gypsy Moths (Lymantriidae: Lepidoptera).
Ronald M. Weseloh  . . . . 288

Genotypic Variation in Constitutive and Induced Resistance in Grapes Against Spider Mite (Acari: Tetranychidae) Herbivores. 
Gregory English-Loeb, Richard Karban, and M. Andrew Walker  . . . . 297

Natural Enemy Effects on the Survival of Synaxis cervinaria (Lepidoptera: Geometridae). 
Michael A. Valenti, Alan A. Berryman, and George T. Ferrell  . . . . 305

Wireworm (Coleoptera: Elateridae) Incidence and Diversity in Iowa Conservation Reserve Environments. 
Stephen A. Lefko, Larry P. Pedigo, Marlin E. Rice, and William D. Batchelor  . . . . 312

Seasonal Adult Sex Ratio Shift in the Praying Mantid Iris oratoria (Mantodea: Mantidae). 
Michael R. Maxwell  . . . . 318

Effects of Environmental Factors on Abundance of Anopheles minimus (Diptera: Culicidae) Larvae and Their Seasonal Fluctuation in Taiwan. 
Hwa-Jen Teng, Yen-Li Wu, Shyi-Jyi Wang, and Chao Lin  . . . . 324

Effects of Host Egg Mass Size on Sex Ratio and Oviposition Sequence of Trissolcus basalis (Hymenoptera: Scelionidae). 
Stefano Colazza and Eric Wajnberg  . . . . 329

Predicting Phenology of Green Peach Aphid (Homoptera: Aphididae) using Degree-Days. 
Tae Ho Ro, Garrell E. Long, and H. Harold Toba  . . . . 337

Computer Model for Simulating Almond Moth (Lepidoptera: Pyralidae) Population Dynamics. 
James E. Throne, David W. Hagstrum, and Jan Nawrot  . . . . 344 

Parasitism by Trichogramma spp. (Hymenoptera: Trichogrammatidae) in Relation to Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) Egg Density and Location. 
K. W. McCravy and C. W. Berisford  . . . . 355

Physiological and Chemical Ecology

Phenological Comparison of Two Braconid Parasitoids of the Caribbean Fruit Fly (Diptera: Tephritidae). 
J. Sivinski, M. Aluja, T. Holler, and A. Eitam  . . . . 360

Sequestered Cucurbitacins and Pathogenicity of Metarhizium anisopliae (Moniliales: Moniliaceae) on Spotted Cucumber Beetle Eggs and Larvae (Coleoptera: Chrysomelidae).
Douglas W. Tallamy, Daryl P. Whittington, Ferdinand Defurio, David A. Fontaine, Piotr M. Gorski, and Peter W. Gothro  . . . . 366

Mexican Bean Beetle (Coleoptera: Coccinellidae) Injury Affects Photosynthesis of Glycine max and Phaseolus vulgaris. 
Robert K. D. Peterson, Leon G. Higley, Fikru J. Haile, and Jos A. F. Barrigossi  . . . . 373

Field Bioassays of Synthetic Pheromones and Host Monoterpenes for Conophthorus coniperda (Coleoptera: Scolytidae). 
Peter De Groot, Gary L. Debarr, and Gran Birgersson  . . . . 382

Effects of Ozone on Reproduction of Twospotted Spider Mite (Acari: Tetranychidae) on White Clover. 
Robert L. Hummel, Rick L. Brandenburg, Allen S. Heagle, and Consuelo Arellano  . . . . 388

Attraction of Japanese Beetles (Coleoptera: Scarabaeidae) to Host Plant Volatiles in Field Trapping Experiments. 
John H. Loughrin, Daniel A. Potter, and Thomas R. Hamilton-Kemp  . . . . 395

Influence of Temperature on Grape Leafhoppers in Southcentral Washington. 
Kirk N. Olsen, Wyatt W. Cone, and Lawrence C. Wright  . . . . 401

Biological Control

Diurnal Flight Activity of Diadegma insulare (Hymenoptera: Ichneumonidae), a Parasitoid of the Diamondback Moth (Lepidoptera: Plutellidae), in the Field. 
A. B. Idris and E. Grafius  . . . . 406

Heritability Estimates of Development Time and Size Characters in the Gypsy Moth (Lepidoptera: Lymantriidae) Parasitoid Cotesia melanoscela (Hymenoptera: Braconidae). 
Amy B. Chenot and Kenneth F. Raffa  . . . . 415

Association of the Opiine Parasitoid Diachasmimorpha tryoni (Hymenoptera: Braconidae) with the Lantana Gall Fly (Diptera: Tephritidae) on Kauai. 
Jian J. Duan, Russell H. Messing, and Mary F. Purcell  . . . . 419

Compatibility of Beauveria bassiana With Selected Fungicides and Herbicides. 
Silvia Ivanova Todorova, Daniel Coderre, Raymond-Marie Duchesne, and Jean-Charles Ct   . . . . 427

Seasonal Incidence and Biological Control Potential of A prostocetus hagenowii (Hymenoptera: Eulophidae) in Treehole Microhabitats. 
Daniel R. Suiter, Richard S. Patterson, and Philip G. Koehler  . . . . 434

Development, Longevity, and Fecundity of Chelonus sp. nr. curvimaculatus (Hymenoptera: Braconidae), an Egg-Larval Parasitoid of Pink Bollworm (Lepidoptera: Gelechiidae). 
Matthew G. Hentz, Peter C. Ellsworth, Steven E. Naranjo, and Theo F. Watson  . . . . 443

Laboratory Assessment of the Effects of Bacillus thuringiensis on Native Lepidoptera. 
John W. Peacock, Dale F. Schweitzer, Jane L. Carter, and Normand R. Dubois  . . . . 450

The Importance of Prey for Fecundity and Behavior in the Gypsy Moth (Lepidoptera: Lymantriidae) Predator Calosoma sycophanta (Coleoptera: Carabidae). 
Douglas J. Spieles and David J. Horn  . . . . 458

Ecology of Hunterellus hookeri (Hymenoptera: Encyrtidae) and Evaluation of Its Impact on Ixodes scapularis (Acari: Ixodidae) on Nonamesset Island in Massachusetts. 
Suzanne M. Lyon, Roy Van Driesche, and John D. Edman  . . . . 463

Host Range Studies with Bagous affinis (Coleoptera: Curculionidae), an Indian Weevil that Feeds on Hydrilla Tubers. 
Gary R. Buckingham and Christine A. Bennett  . . . . 469 

Effects of transgenic Bacillus thuringiensis corn-fed prey on mortality and development time of immature Chrysoperla carnea (Neuroptera: Chrysopidae). 
Angelika Hilbeck, Martin Baumgartner, Padruot M. Fried, and Franz Bigler  . . . . 480

Relationships Between Temperature and Life History Parameters of Trichomalopsis sarcophagae (Hymenoptera: Pteromalidae). 
T. J. Lysyk  . . . . 488

Use of a Factitious Host and Supplemented Adult Diet To Rear and Induce Oogenesis in Catolaccus grandis (Hymenoptera: Pteromalidae). 
M. G. Rojas, J. A. Morales-Ramos, E. G. King, G. Saldaa, and S. M. Greenberg  . . . . 499 

Larval Crowding and Adult Nutrition Effects on Longevity and Fecundity of Female Trichogramma nubilale Ertle & Davis (Hymenoptera: Trichogrammatidae). 
D. M. Olson and D. A. Andow  . . . . 508

Book Reviews

Evolutionary Ecology Across Three Trophic Levels: Goldenrods, Gallmakers, and Natural Enemies. 
Reviewed by Stewart H. Berlocher  . . . . 515

In the article, ``Biology of Cybocephalus sp. nr. nipponicus (Coleoptera: Cybocephalidae), a Natural Enemy of Euonymus Scale (Homoptera: Diaspididae),'' by Juan Manuel Alvarez and Roy Van Driesche, published in Environmental Entomology, 27 (1): 130-136, the following correction is to be noted:

On page 132, 1st column, the equation should read as follows:

Arcsine (Square root %) = [gb]0 + [gb]1A + [gb]2D + [gb]3A2 + [gb]4D2 + [gb]5A*D.