1. Department of Biochemistry and Microbiology, UNESP – Univ Estadual Paulista, Rio Claro, SP, Brazil
2. Department of Biology, UNESP – Univ Estadual Paulista, Sao Jose do Rio Preto, SP, Brazil
3. Center for the Study of Social Insects, UNESP – Univ Estadual Paulista, Rio Claro, SP, Brazil
4. Division of Biology and Biological Engineering, Caltech – California Institute of Technology, Pasadena, CA, USA