Duane McKenna, dmckenna@oeb.harvard.edu¹, Andrea Sequeira, asequeir@wellesley.edu², Adriana E. Marvaldi, marvaldi@lab.cricyt.edu.ar³, and Brian Farrell¹. (1) Harvard University, Organismic & Evolutionary Biology, 26 Oxford Street, Cambridge, MA, (2) Wellesley College, Department of Biology, Room 367 Science Center, 106 Central Street, Wellesley, MA, (3) IADIZA, CONICET, C. C. 507 Av. A. Ruiz Leal s/n, Pque. Gral. San Martin, Mendoza, Argentina