1. Letter from the Editor-in-Chief

   Editorial Commentary Pages: 1 - 1

2. Instructions for Rapid Communications

   Instructions for Authors Pages: 3 - 3

3. Application of Hyphenated Chromatography–Mass Spectrometry Techniques to Plant Allelopathy Research

   • Terry Haig

   OriginalPaper Pages: 2363 - 2396

4. Male-Specific Sesquiterpenes from Phyllotreta and Aphthona Flea Beetles

   • Robert J. Bartelt
   • Allard A. Cossé
   • Frank A. Momany

   OriginalPaper Pages: 2397 - 2423

5. Dose-Dependent Response and Preliminary Observations on Attraction Range of Ips typographus to Pheromones at Low Release Rates

   • Anne J. Franklin
   • Jean-Claude Grégoire

   OriginalPaper Pages: 2425 - 2435

6. Behavioral and Chemical Analysis of Venom Gland Secretion of Queens of the Ant Solenopsis geminata

   • Leopoldo Cruz-López
   • Julio C. Rojas
   • E. David Morgan

   OriginalPaper Pages: 2437 - 2445

7. Identification of Female Sex Pheromone of the Rice Leaf Bug, Trigonotylus caelestialium

   • Masashi Kakizaki
   • Hajime Sugie

   OriginalPaper Pages: 2447 - 2458

8. Volatile Components in Dorsal Gland Secretions of the White-Lipped Peccary, Tayassu pecari, from Bolivia

   • John S. Waterhouse
   • Mark Hudson
   • Paul J. Weldon

   OriginalPaper Pages: 2459 - 2469

9. Odorant Source Used in Eurasian Beaver Territory Marking

   • Frank Rosell
   • Lars Jøran Sundsdal

   OriginalPaper Pages: 2471 - 2491

10. Wolf Spiders Show Graded Antipredator Behavior in the Presence of Chemical Cues from Different Sized Predators

    • M. H. Persons
    • A. L. Rypstra

    OriginalPaper Pages: 2493 - 2504

11. Sequestration of Host Plant Glucosinolates in the Defensive Hemolymph of the Sawfly Athalia rosae

    • Caroline Müller
    • Niels Agerbirk
    • Paul M. Brakefield

    OriginalPaper Pages: 2505 - 2516

12. Ethyl m-Digallate from Red Maple, Acer rubrum L., as the Major Resistance Factor to Forest Tent Caterpillar, Malacosoma disstria Hbn.

    • Mamdouh M. Abou-Zaid
    • Blair V. Helson
    • J. Thor Arnason

    OriginalPaper Pages: 2517 - 2527

13. Effect of Methyl Jasmonate on Hydroxamic Acid Content, Protease Activity, and Bird Cherry–Oat Aphid Rhopalosiphum padi (L.) Probing Behavior

    • E. Slesak
    • M. Slesak
    • B. Gabrys

    OriginalPaper Pages: 2529 - 2543

14. Analyzing Variability in Nectar Amino Acids: Composition Is Less Variable Than Concentration

    • Mark C. Gardener
    • Michael P. Gillman

    OriginalPaper Pages: 2545 - 2558

15. Detoxification in Relation to Toxin Tolerance in Desert Woodrats Eating Creosote Bush

    • Antonio M. Mangione
    • Denise Dearing
    • William Karasov

    OriginalPaper Pages: 2559 - 2578

16. Plant Phenolics as Dietary Antioxidants for Herbivorous Insects: A Test with Genetically Modified Tobacco

    • Kelly S. Johnson
    • Gary W. Felton

    OriginalPaper Pages: 2579 - 2597

17. Call for Papers

    Call for Papers Pages: 2599 - 2599

18. Author Index to Volume 27

    Authors Index Pages: 2601 - 2606

19. Subject Index to Volume 27

    Subject Index Pages: 2607 - 2616