Microlarnaca[1] is a genus of Orthopterans, sometimes known as 'leaf-folding crickets' in the subfamily Gryllacridinae and tribe Gryllacridini.

The recorded distribution is from localities in China and Vietnam.

[2] The prefix "Micro-" indicates that these Orthopterans are smaller but similar to the genus Larnaca.

There are a number of similar genera, described from Vietnam by AV Gorochov, and the Orthoptera Species File indicates that other locality records[2] and possibly other species have yet to be discovered in the Indo-China region.

The Orthoptera Species File[2] lists: