Description of the cell provisioning and oviposition process of seven species of Plebeia Schwarz (Apidae, Meliponini), with notes on their phylogeny and taxonomy P.M. DrumondR. ZucchiB.P. Oldroyd Pages: 99 - 112
Genetical and morphological colony structure of the Australian swarm-founding polistine wasp, Ropalidia romandi (Hymenoptera, Vespidae) K. TsuchidaY. ItôJ. Kojima Pages: 113 - 116
Seasonal foraging characteristics during mid-day of successful underground colonies of Vespula vulgaris (Hymenoptera, Vespidae) in England M.E. Archer Pages: 117 - 122
Contributions to the life history of the Malaysian giant ant Camponotus gigas (Hymenoptera, Formicidae) M. PfeifferK.E. Linsenmair Pages: 123 - 132
Nestmate interactions and egg-laying behaviour in the queenless ponerine ant Rhytidoponera sp. 12 W.T. TayR.H. Crozier Pages: 133 - 140
Nutritional function of replete workers in the pharaoh's ant, Monomorium pharaonis (L.) L.W. Børgesen Pages: 141 - 146
Morpho-physiological variability and differentiation of reproductive roles among foundresses of the primitively eusocial wasp, Belonogaster petiolata (Degeer) (Hymenoptera, Vespidae) M.G. Keeping Pages: 147 - 154
Polistes dominulus (Hymenoptera, Vespidae) invading North America: some hypotheses for its rapid spread R. CervoF. ZacchiS. Turillazzi Pages: 155 - 157
Dominance hierarchy in colonies of Belonogaster juncea juncea (Vespidae, Polistinae) M. TindoA. Dejean Pages: 158 - 163
Individual and colony factors in bumble bee division of labor (Bombus bifarius nearcticus Handl; Hymenoptera, Apidae) S. O'DonnellM. ReichardtR. Foster Pages: 164 - 170
Single and dual parasitic mite infestations on the honey bee, Apis mellifera L. D.L. DowneyT.T. HigoM.L. Winston Pages: 171 - 176
The influence of pollen storage area and Varroa jacobsoni Oudemans parasitism on temporal caste structure in honey bees (Apis mellifera L.) A.F. JanmaatM.L. Winston Pages: 177 - 182
Microsatellite analysis of gamergate relatedness of the queenless ponerine ant Rhytidoponera sp. 12 W.T. TayR.H. Crozier Pages: 188 - 192
Optional gamergates in the queenright ponerine ant Gnamptogenys striatula Mayr R. BlatrixP. Jaisson Pages: 193 - 197
