In contrast, " anerythra " is highly distinctive ( lacks red to the wings, but has some reddish to the belly ) and it has been recommended it should be treated as a separate, monotypic species found between the Xingu River and Tocantins Araguaia River.
32.
Notably the population between the Madeira and Pur�s Rivers ( between generally reported range of " C . u . adspersus " and " C . u . yapura " ), and the population between the Tapaj�s and Araguaia Rivers ( between generally reported range of " C . u . adspersus " and " C . u . vermiculatus " ) appear not to have been assigned to subspecies.