1. Hybridization in the social parasitic ant genusEpimyrma (Hymenoptera, Formicidae)

   • K. Jessen
   • M. Klinkicht

   OriginalPaper Pages: 273 - 293

   

2. Respiration und mitochondrienverteilung im fettkoerper woehrend der kastendifferenzierung vonFormica polyctena (Foerster)

   • G. H. Schmidt
   • H. Reuss

   OriginalPaper Pages: 294 - 314

3. Field study on foraging by the polymorphic ant species,Pheidole pallidula

   • C. Detrain

   OriginalPaper Pages: 315 - 332

4. Nonaggressive usurpation of the nest ofPolistes biglumis bimaculatus by the social parasiteSulcopolistes atrimandibularis (Hymenoptera Vespidae)

   • R. Cervo
   • M. C. Lorenzi
   • S. Turillazzi

   OriginalPaper Pages: 333 - 347

5. A new polygynousLasius species (Hymenoptera; Formicidae) from central Europe

   • A. J. Van Loon
   • J. J. Boomsma
   • A. Andrasfalvy

   OriginalPaper Pages: 348 - 362

6. A new polygynousLasius species (Hymenoptera: Formicidae) from central Europe

   • J. J. Boomsma
   • A. H. Brouwer
   • A. J. Van Loon

   OriginalPaper Pages: 363 - 375