Polyethism within hunters of the ponerine ant,Ectatomma ruidum Roger (Formicidae, Ponerinae) B. SchatzJ. P. LachaudG. Beugnon Research Article Pages: 111 - 118
Dimorphic ergatoid males and their reproductive behavior in the ponerine antHypoponera bondroiti K. YamauchiY. KimuraK. Tsuji Research Article Pages: 119 - 130
A new ethological test to study nestmate recognition in adult ants R. Fénéron Research Article Pages: 131 - 135
Caste allometries in the soldier-producing aphidPseudoregma alexanderi (Hormaphididae: Aphidoidea) D. L. SternA. MoonC. Martinez del Rio Research Article Pages: 137 - 147
A duration constant for worker-to-larva trophallaxis in fire ants D. L. CassillW. R. Tschinkel Research Articles Pages: 149 - 166
Patterns of provisioning and iteroparity in a solitary halictine bee,Lasioglossum (Evylaeus) fratellum (Perez), with notes onL. (E.) calceatum (Scop.) andL. (E.) villosulum (K.) J. Field Research Articles Pages: 167 - 182
Electrophoretical studies of proteins of the hypopharyngeal glands and of the larval food ofMelipona quadrifasciata anthidioides Lep. (Hymenoptera, Meliponinae) R. L. M. Silva de MoraesM. R. Brochetto-BragaA. Azevedo Research Article Pages: 183 - 188
Growth and demography ofCubitermes speciosus mounds (Isoptera, Termitidae) K. SokiG. JosensM. Loreau Research Article Pages: 189 - 200
Reproductive strategy of the slave antFormica podzolica relative to raiding efficiency of enslaver species R. SavolainenK. VepsäläinenR. J. Deslippe Research Article Pages: 201 - 210
Alarm in a wasp-wasp nesting association: Do members signal cross-specifically? K. B. LondonR. L. Jeanne Research Article Pages: 211 - 215
Cooperative foundation of colonies by unrelated foundresses in the antPolyrhachis moesta K. SasakiT. SatohY. Obara Research Article Pages: 217 - 226