Notes on range extension and geographic variation of calls in Adenomera thomei (Anura: Leptodactylidae)

New localities are herein reported for Adenomera thomei in Minas Gerais state, increasing its known distribution towards the Brazilian northwest and expanding knowledge on its habitat use. The advertisement calls of Adenomera thomei here reported exhibit variation in the call parameters known for this species, but also reveal a degree of overlap with the calls of a closely related undescribed species, suggesting that further research is needed to elucidate geographic call variation and population identities.