The Galapagos ant fauna and the attributes of colonizing ant species, Carlos Roberto F. Brandao and Ricardo V.S. Paiva; distribution and impact of alien ants in vulnerable Hawaiian ecosystems, Neal J. Reimer; characteristics of tramp species, Luc Passera; coexisting patterns and foraging behaviour of introduced and native ants (Hymenoptera formicidae) in the Galapagos Islands (Ecuador), Rolf E. Meier; perpsectives on control of the little fire ant (Wasmannia Auropunctata) on the Galapagos Islands, Patricia Ulloa-Chacon and Daniel Cherix; food searching behaviour and competition between Wasmannia Auropunctata and native ants on Santa Cruz and Isabela, Galapagos Islands, Ines de la Vega; the ecology of Wasmannia Auropunctata in primary tropical rainforest in Costa Rica and Panama, Leeanne E. Tennant; relations between the little fire ant, Wasmannia Auropunctata and its associated mealy bug, Planococcus Citri, in Brazilian cocoa farms, J.H.C. Delabie et al; biology and importance of two eucharitid parasites of Wasmannia and Solenopsis, John M. Heraty; impact of Paratrechina Fulva on other ant species, Ingeborg Zenner-Polania; the ecology and distribution of Myrmicaria Opaciventris, J.P. Suzzoni et al; exotic ants and community simplification in Brazil - a review of the impact of exotic ants on native assemblages, Harold G. Fowler et al; spread of Argentine ants (Linepithema Humile), with special reference to Western Australia, J.D. Majer; ant pests of Western Australia, with particular reference to the Argentine ant (Linepithema Humile), J.J. van Schagen et al; ant fauna of the French and Venezuelan Islands in the Caribbean, Klaus Jaffe and John Lattke; exotic ants and native ant fauna of Brazilian hospitals, Odair C. Bueno and H.G. Fowler; big-headed ants, Pheidole Megacephala - interference with the biological control of gray pineapple mealybugs, Gary C. Jahn and John W. Beardsley; the impact and control of the crazy ant, Anoplolepis Longipes (Jerd), in the Seychelle