Philautus macroscelis, the mossy bush frog, is a species of frog in the family Rhacophoridae.

It is endemic to Brunei, Malaysia, and Borneo.

It has been observed between 750 and 1800 meters above sea level.

[2][1][3] Philautus macroscelis is a newly discovered species of bush frog, distinguished by its distinct physical features, including particular proportions of limbs and body that assist in its identification.

Its conservation status raises concerns due to its restricted range and potential susceptibility to habitat destruction in Borneo.