1. On the communication systems of the antsPseudomyrmex termitarius andP. triplarinus

   • K. Jaffé
   • M. E. Lopez
   • W. Aragort

   OriginalPaper Pages: 105 - 117

2. The distribution, sociability and fecundity of queens in normal groups of the polygyne antMyrmica rubra L.

   • M. V. Brian

   OriginalPaper Pages: 118 - 131

3. Relations entre trophallaxie, lésions des antennes et facteurs saisonniers chez la FourmiCamponotus vagus Scop

   • A. Bonavita-Cougourdan
   • L. Morel

   OriginalPaper Pages: 132 - 141

4. Karyotype of two species of wasps of the genusPolistes (Polistinae, Vespidae, Hymenoptera)

   • S. das G. Pompolo
   • C. S. Takahashi

   OriginalPaper Pages: 142 - 148

5. Reproductive mechanisms in termites: Polycalism and polygyny inNasutitermes polygynus andN. costalis

   • Y. Roisin
   • J. M. Pasteels

   OriginalPaper Pages: 149 - 167

6. Seasonality in mature nests of the termiteMacrotermes michaelseni in Kenya

   • J. P. E. C. Darlington

   OriginalPaper Pages: 168 - 189

7. An analysis of variation in the nest architecture ofHalictus ligatus in Ontario

   • L. Packer
   • G. Knerer

   OriginalPaper Pages: 190 - 205

8. Étude des lipides chez la fourmiTapinoma simrothi phoenicea

   • N. Hanna
   • R. El Bacha
   • R. Hanna

   Communication Brève Pages: 206 - 210

9. Honeydew intake of the weaver antPolyrhachis simplex (Hymenoptera: Formicidae) attending the aphidChaitophorous populialbae (Homoptera: Aphididae)

   • A. A. Degen
   • M. Gersani
   • N. Weisbrot

   Brief Communication Pages: 211 - 215