1. Departamento de Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21044-020, Brazil;
2. Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, Ohio 43210, USA;
3. Department of Entomology, Smithsonian Institution, National Museum of Natural History, Washington, DC 20560, USA