Cycads: their evolution, toxins, herbivores and insect pollinators Dietrich SchneiderMichael WinkPhilip Lounibos Review Article Pages: 281 - 294
The origin of extensive colour polymorphism in Plateumaris sericea (Chrysomelidae, Coleoptera) Masashi KurachiYasuharu TakakuTakahiko Hariyama Short Communication Pages: 295 - 298
Hot spots in the bee hive Brigitte BujokMarco KleinhenzJürgen Tautz Short Communication Pages: 299 - 301
A queen pheromone induces workers to kill sexual larvae in colonies of the red imported fire ant (Solenopsis invicta) Emily A. KlobucharRichard J. Deslippe Short Communication Pages: 302 - 304
Gamergates in the myrmicine genus Metapone (Hymenoptera:Formicidae) Bert HölldoblerJürgen LiebigGary D. Alpert Short Communication Pages: 305 - 307
2-Nitroethenylbenzenes as natural products in millipede defense secretions Yasumasa KuwaharaHisashi ÔmuraTsutomu Tanabe Short Communication Pages: 308 - 310
Attraction of the tropical bont tick, Amblyomma variegatum, to human breath and to the breath components acetone, NO and CO2 C. McMahon P. Guerin Short Communication Pages: 311 - 315
Inter-cellular spike coincidences in visual detection tasks Roman BauerSabine Heinze Short Communication Pages: 316 - 318
Plant development in the absence of epiphytic microorganisms U. Kutschera V. Koopmann R. Grotha Short Communication Pages: 319 - 321
Foraging reactivation in the honeybee Apis mellifera L.: factors affecting the return to known nectar sources Mariana GilWalter Farina Short Communication Pages: 322 - 325
Small hive beetles survive in honeybee prisons by behavioural mimicry J. Ellis C. Pirk P. Elzen Short Communication Pages: 326 - 328