1. Do Bumble Bees Produce Brood Pheromones?

   • Jesse Starkey
   • Nathan Derstine
   • Etya Amsalem

   OriginalPaper 31 August 2019 Pages: 725 - 734

   

2. Phenotypic Plasticity of Nest-Mate Recognition Cues in Formica exsecta Ants

   • Stephen J. Martin
   • Falko P. Drijfhout
   • Adam G. Hart

   OriginalPaper Open access 02 September 2019 Pages: 735 - 740

   

3. Influence of Mutualistic Lifestyle, Mutualistic Partner, and Climate on Cuticular Hydrocarbon Profiles in Parabiotic Ants

   • Philipp P. Sprenger
   • Juliane Hartke
   • Florian Menzel

   OriginalPaper 27 August 2019 Pages: 741 - 754

   

4. Worker Defensive Behavior Associated with Toxins in the Neotropical Termite Neocapritermes braziliensis (Blattaria, Isoptera, Termitidae, Termitinae)

   • Ana Maria Costa-Leonardo
   • Iago Bueno da Silva
   • Mario Sergio Palma

   OriginalPaper 23 August 2019 Pages: 755 - 767

   

5. Chemistry of the Androconial Secretion of the Ithomiine Butterfly Oleria onega

   • Patrick Stamm
   • Florian Mann
   • Stefan Schulz

   OriginalPaper 07 September 2019 Pages: 768 - 778

   

6. Perception of and Behavioral Responses to Host Plant Volatiles for Three Adelphocoris Species

   • Chun-Li Xiu
   • Hong-Sheng Pan
   • Yan-Hui Lu

   OriginalPaper 03 September 2019 Pages: 779 - 788

   

7. Maytenin Plays a Special Role in the Regulation of the Endophytic Bacillus megaterium in Peritassa campestris Adventitious Roots

   • Marielle Cascaes Inácio
   • Tiago Antunes Paz
   • Maysa Furlan

   OriginalPaper 17 August 2019 Pages: 789 - 797

   

8. Ingestion and Absorption of Eucalypt Monoterpenes in the Specialist Feeder, the Koala (Phascolarctos cinereus)

   • Caroline Marschner
   • Mark B. Krockenberger
   • Ben D. Moore

   OriginalPaper 17 August 2019 Pages: 798 - 807

   

9. Professor Kenji Mori, 21 March 1935–16 April 2019

   • Wittko Francke

   Obituary 03 September 2019 Pages: 808 - 809