First record of emergency queen rearing in stingless bees (Hymenoptera, Apinae, Meliponini) C.D. FaustinoE.V. Silva-MatosR. Zucchi Pages: 111 - 113
The reproductive cycle of thelytokous colonies of Cerapachys biroi Forel (Formicidae, Cerapachyinae) F. RavaryP. Jaisson Pages: 114 - 119
Diploid males and sex determination in a paper wasp, Polistes chinensis antennalis (Hymenoptera, Vespidae) K. TsuchidaN. NagataJ. Kojima Pages: 120 - 124
Queen morphology and dispersal tactics in the ant, Cardiocondyla batesii J. HeinzeA. SchrempfA. Tinaut Pages: 129 - 132
Foraging of a hypogaeic army ant: a long neglected majority S.M. BerghoffA. WeissflogU. Maschwitz Pages: 133 - 141
Size variation and foraging rate in bumblebees (Bombus terrestris) J. SpaetheA. Weidenmüller Pages: 142 - 146
Nest site selection and longevity in the ponerine ant Rhytidoponera metallica (Hymenoptera, Formicidae) M.L. Thomas Pages: 147 - 152
Thermal preference for fungus culturing and brood location by workers of the thatching grass-cutting ant Acromyrmex heyeri M. BollazziF. Roces Pages: 153 - 157
Nest complexity, group size and brood rearing in the fire ant, Solenopsis invicta D. CassillW.R. TschinkelS.B. Vinson Pages: 158 - 163
Colony development, larval development and worker reproduction in Bombus impatiens Cresson J. CnaaniR. Schmid-HempelJ.O. Schmidt Pages: 164 - 170
Task partitioning in insect societies: bucket brigades C. AndersonJ.J. BoomsmaJ.J. Bartholdi, III Pages: 171 - 180
The biology of the primitively eusocial Augochloropsis iris (Schrottky, 1902) (Hymenoptera, Halictidae) B.W.T. Coelho Pages: 181 - 190
