Fire ants venoms: comparative analysis of alkaloidal components: J. M. Brand, M. S. Blum, Toxicon, 1972, 10, 259. (Department of Entomology, University of Georgia, Athens, Georgia 30601, U.S.A.) H. M. Fales (Laboratory of Chemistry, National Heart and Lung Institute, Bethesda, Maryland 20014, U.S.A.) and J. G. MacConnell, (Department of Chemistry, State University College of Forestry, Syracuse, New York 13210, U.S.A.)