The gut microbiota of bumblebees T. J. HammerE. LeN. A. Moran Review Article 29 September 2021 Pages: 287 - 301
Origin of an evolutionary novelty: the worker phenotype of eusocial wasps J. H. Hunt Review Article Open access 05 October 2021 Pages: 303 - 318
Nutrition induced direct fitness for workers in a primitively eusocial wasp J. U. KrishnanA. BrahmaR. Gadagkar Research Article Open access 20 September 2021 Pages: 319 - 325
Colony structure, population structure, and sharing of foraging trees in the ant Myrmecia nigriceps (Hymenoptera: Formicidae) V. AlsA. NarendraB. C. Schlick-Steiner Research Article Open access 30 August 2021 Pages: 327 - 335
Nesting biology and social organisation of the allodapine bee Exoneura angophorae (Hymenoptera: Apidae): montane environmental constraints yield biased sex allocation yet phenology is unhindered O. M. BernauerJ. M. CookS. M. Tierney Research Article 27 August 2021 Pages: 337 - 349
Characterization of cuticular hydrocarbons in a subsocial bee, Ceratina calcarata N. J. PizziS. M. Rehan Research Article 01 September 2021 Pages: 351 - 358
Effects of Azteca trigona alarm pheromones on heterospecific ant behavior R. L. WellsC. J. FrostS. P. Yanoviak Research Article 24 September 2021 Pages: 359 - 365
Inter-gall dispersal in a socially parasitic aphid D. G. Miller III Short Communication 14 July 2021 Pages: 367 - 370
Stylopized hornets (Vespa, Vespidae) as preferred hosts of the parasitic mite Charletonia southcotti (Erythraeidae, Acari) H. KosakaK. SayamaS. Makino Short Communication 17 September 2021 Pages: 371 - 374
The evidence of temporary social parasitism by Polyrhachis lamellidens (Hymenoptera, Formicidae) in a Camponotus obscuripes colony (Hymenoptera, Formicidae) H. IwaiY. KuriharaK. Arakawa Short Communication Open access 22 August 2021 Pages: 375 - 382