Triatoma carcavalloi Jurberg, Rocha & Lent, 1998 in its original description was related to T. rubrovaria (Blanchard, 1843) and T. circummaculata (Stäl, 1859). Here eggs and nymphs of T. carcavalloi are described using optical microscopy to provide new parameters to be used in Triatominae's taxonomy. Eggs showed the operculum and surface with pentagonal and hexagonal cells, with small fractures and punctuations randomly distributed and are similar to T. rubrovaria, T. circummaculata and T. infestans Klug, 1834. Nymphs are different from all species related to T. carcavalloi primordially in color and size. Morphological differences were found in the five nymphal stages, but following the same pattern of color in head, thorax, legs and abdomen.
Chagas disease; Vectors; Triatominae; Taxonomy; External morphology
