A 2025 study recognized this antbird as separate from a regional population of the Variable Antshrike. Song differences contributed to the distinction.
Females in the former cearensis account have an olive tone on the belly, breast, back, and wing coverts. A Brazilian field guide describes the northeastern cearensis form as having narrow or absent wing bars.
The former subspecies account describes shrubby forest understory and an arthropod diet. In playback tests summarized by SACC, the cearensis group responded to its own and the distant melanchrous group's songs, but not to other groups.
An extinction-risk assessment has not been added yet.