Symmacra is a monotypic moth genus in the family Geometridae described by Warren in 1896.

Its only species, Symmacra solidaria, was first described by Achille Guenée in 1858.

[1] It is found in Indo-Australian tropics of India, Sri Lanka,[2] Borneo east to Fiji, Samoa and Australia.

[3] The adult has dull olive-green wings with faint transverse fasciations.

In the hindwing, a discal mark consists or a centrally broken fine white bar.