Spatial specialization of the foragers and foraging strategy inLasius fuliginosus (Latreille) (Hymenoptera, Formicidae) Y. QuinetJ. M. Pasteels Research Article Pages: 333 - 346
Influence of age and caging upon protein metabolism, hypopharyngeal glands and trophallactic behavior in the honey bee (Apis mellifera L.) A. LassK. Crailsheim Research Article Pages: 347 - 358
A genetic model for disruptive selection on colony social organisation, reproduction, and ecotype distribution in wood ants inhabiting different woodland habitats C. HöfenerB. SeifertT. Krüger Research Article Pages: 359 - 373
Castes in humivorous and litter-dwelling neotropical nasute termites (Isoptera, Termitidae) Y. Roisin Research Article Pages: 375 - 389
Selective acceptance of the brood of two formicine slave-making ants by host and non-host related species A. MoriP. D'EttorreF. Le Moli Research Article Pages: 391 - 400
A polygynous nest ofVespula pensylvanica from California with a discussion of possible factors influencing the evolution of polygyny inVespula F. L. W. RatnieksR. S. VetterP. K. Visscher Research Article Pages: 401 - 410
Colony cycle of an Australian swarm-founding paper wasp,Ropalidia romandi (Hymenoptera: Vespidae) J. Kojima Research Article Pages: 411 - 420
Morphology and reproductive behaviour of intercastes in the ponerine antPachycondyla obscuricornis O. DüssmannC. PeetersB. Hölldobler Research Article Pages: 421 - 425
Mound-building termites and soil microbial biomass: An interaction influencing termite abundance J. A. Holt Research Article Pages: 427 - 434
The significance of visual landmarks for navigation of the giant tropical ant,Paraponera clavata (Formicidae, Ponerinae) A. P. Baader Research Article Pages: 435 - 450