The role of wax and resin in the nestmate recognition system of a stingless bee, Tetragonisca angustula - Sam M. Jones; Jelle S. van Zweden; Christoph Grüter; Cristiano Menezes; Denise A. Alves; Patrícia Nunes-Silva; Tomer Czaczkes; Vera L. Imperatriz-Fonseca; Francis L. W. Ratnieks (Behavioral Ecology and Sociobiology, 2012)