1. Polyethism within hunters of the ponerine ant,Ectatomma ruidum Roger (Formicidae, Ponerinae)

   • B. Schatz
   • J. P. Lachaud
   • G. Beugnon

   Research Article Pages: 111 - 118

2. Dimorphic ergatoid males and their reproductive behavior in the ponerine antHypoponera bondroiti

   • K. Yamauchi
   • Y. Kimura
   • K. Tsuji

   Research Article Pages: 119 - 130

3. A new ethological test to study nestmate recognition in adult ants

   • R. Fénéron

   Research Article Pages: 131 - 135

4. Caste allometries in the soldier-producing aphidPseudoregma alexanderi (Hormaphididae: Aphidoidea)

   • D. L. Stern
   • A. Moon
   • C. Martinez del Rio

   Research Article Pages: 137 - 147

5. A duration constant for worker-to-larva trophallaxis in fire ants

   • D. L. Cassill
   • W. R. Tschinkel

   Research Articles Pages: 149 - 166

6. 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

7. Electrophoretical studies of proteins of the hypopharyngeal glands and of the larval food ofMelipona quadrifasciata anthidioides Lep. (Hymenoptera, Meliponinae)

   • R. L. M. Silva de Moraes
   • M. R. Brochetto-Braga
   • A. Azevedo

   Research Article Pages: 183 - 188

8. Growth and demography ofCubitermes speciosus mounds (Isoptera, Termitidae)

   • K. Soki
   • G. Josens
   • M. Loreau

   Research Article Pages: 189 - 200

9. Reproductive strategy of the slave antFormica podzolica relative to raiding efficiency of enslaver species

   • R. Savolainen
   • K. Vepsäläinen
   • R. J. Deslippe

   Research Article Pages: 201 - 210

10. Alarm in a wasp-wasp nesting association: Do members signal cross-specifically?

    • K. B. London
    • R. L. Jeanne

    Research Article Pages: 211 - 215

11. Cooperative foundation of colonies by unrelated foundresses in the antPolyrhachis moesta

    • K. Sasaki
    • T. Satoh
    • Y. Obara

    Research Article Pages: 217 - 226