Aristathlus imperatorius Bergroth, 1913
A variation in the coloration of the pronotum was observed among the specimens examined (see Fig. 4 and 5). New records. Brazil, states of Amazonas, Pará, and Mato Grosso.
Material examined: BRAZIL, 1 male, Amazonas, Manaus, 14XI1955, Elias & Roppa leg.; 1 female, Pará, Óbidos, V1956, F. Oliveira leg., [ex] Campos Seabra collection; 1 male, Mato Grosso, Diamantino, Arinos River [14° 22' S 56° 07' W], 16XI2002, E. Furtado leg..