Observations onApoica pallens, a nocturnal neotropical social wasp (Hymenoptera: Vespidae, Polistinae, Epiponini) J. H. HuntR. L. JeanneM. G. Keeping Research Articles Pages: 223 - 236
Survival and growth in groups of a subsocial spider (Stegodyphus lineatus) J. M. Schneider Research Articles Pages: 237 - 248
Ant search behaviour analysis with a video frame grabber V. J. L. FourcassiéJ. F. A. Traniello Research Articles Pages: 249 - 254
Sexual biology of haploid and diploid males in the bumble beeBombus terrestris M. J. DuchateauJ. Mariën Research Articles Pages: 255 - 266
Congruency of hydrocarbon patterns in heterospecific groups of ants: transfer and/or biosynthesis? C. VienneV. SorokerA. Hefetz Research Articles Pages: 267 - 277
Host nest usurpation and colony foundation in the European amazon ant,Polyergus rufescens Latr. (Hymenoptera: Formicidae) A. MoriP. D'EttorreF. Le Moli Research Articles Pages: 279 - 286
Sociality in a bark-dwelling huntsman spider from Australia,Delena cancerides Walckenaer (Araneae: Sparassidae) D. M. RowellL. Avilés Research Articles Pages: 287 - 302
Trophic eggs laid by fertileMyrmica queens (Hymenoptera: Formicidae) J. C. WardlawG. W. Elmes Research Articles Pages: 303 - 308
Reproductive behavior of the antLeptothorax (Dichothorax) pergandei J. HeinzeB. HölldoblerS. Trenkle Research Articles Pages: 309 - 315
Absence of chemical alarm in a primitively eusocial wasp (Belonogaster petiolata, Hymenoptera: Vespidae) M. G. Keeping Short Communication Pages: 317 - 320
The sternal glands of termites: segmental pattern, phylogenetic implications Ch. Noirot Short Communication Pages: 321 - 323
The effect of carbon dioxide on egg production inMyrmica rubra J. C. Wardlaw Short Communication Pages: 325 - 328
Colony-level single-sex alate production inPheidole ceres andPheidole pilifera (Formicidae: Myrmicinae) D. A. Holway Short Communication Pages: 329 - 332
Production of females by parthenogenesis in the ant,Cerapachys biroi K. TsujiK. Yamauchi Short Communication Pages: 333 - 336
