The buff-throated warbling finch (Microspingus lateralis) is a species of bird in the family Thraupidae.

It is found in forest borders and woodland in south-eastern Brazil.

It was previously considered conspecific with the gray-throated warbling finch, and together they were known as the red-rumped warbling finch.

The SACC found enough evidence to split them in 2009.

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