Description of eggs and nymphal instars of Triatoma baratai Carcavallo & Jurberg, 2000 based on optical and scanning electron microscopy (Hemiptera: Reduviidae: Triatominae) Author Jurberg, José Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, 21040 - 900 Rio de Janeiro, RJ, Brasil. E- mail clebergalvao @ gmail. com Author Rosa, João Aristeu Da Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, Araraquara, SP, Brasil Author Schaefer, Carl W. Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269 - 3043, U. S. A. Author Galvão, Cleber Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, 21040 - 900 Rio de Janeiro, RJ, Brasil. E- mail clebergalvao @ gmail. com text Zootaxa 2009 2064 1 20 journal article 1175-5326 Key to fourth instars of some members of the Triatoma oliveirai complex 1. Antennal segment 2>3 ................................................................................................................................................. 2. - Antennal segment 2≤3≤4 .............................................................................................................................. T. jurbergi 2. Antennal segment 3=4 ................................................................................................................................................. 3. - Antennal segment 3>4 ................................................................................................................. T. vandae , T. williami Antennal segment 3<4 ................................................................................................................................... T. baratai 3. Thoracic segments outlined by pale buff .......................................................................................................... T. guazu - Thoracic segments with pale areas, but not so outlined .................................................................... T. matogrossensis