Initiation of worker-soldier trophallaxis by the Formosan subterranean termite (Isoptera: Rhinotermitidae) N. -Y. SuJ. P. La Fage OriginalPaper Pages: 229 - 235
Topographic orientation in two species of ants (Hymenoptera: Formicidae) J. H. Klotz OriginalPaper Pages: 236 - 251
Sex pheromones and their cross-activities in six Japanese sympatri species of the genus Vespa M. OnoM. Sasaki OriginalPaper Pages: 252 - 260
Quantitative studies von workers of the Old World army ant genusAenictus (Hymenoptera: Formicidae) W. H. Gotwald Jr.D. Barr OriginalPaper Pages: 261 - 273
Sex determination in bees XXI. Number of xo-heteroalleles in a natural population ofMelipona compressipes fasciculata (Apidae) W. E. Kerr OriginalPaper Pages: 274 - 279
Polymorphism of males inFormica exsecta Nyl. (Hym.: Formicidae) D. AgostiE. Hauschteck-Jungen OriginalPaper Pages: 280 - 290
Maternal determination of reproductivevs sterile castes inNasutitermes exitiosus (Hill) (Isoptera: Termitidae) J. A. L. WatsonH. M. Abbey OriginalPaper Pages: 291 - 297
Maternal and pre eclosional factors affecting alarm behaviour in adult honey bees (Apis mellifera L.) R. F. A. MoritzE. E. SouthwickJ. R. Harbo OriginalPaper Pages: 298 - 307
