Ricaniidae is a family of planthopper insects, containing over 40 genera and 400 species worldwide.
The highest diversity is in tropical Africa and Asia and in Australia, with a few species occurring in the Palearctic.

Dominik Hofer, a Swiss nature photographer and identifier on several animal website fora, helped me identifying this species.

Andasibe-Mantadia National Park, Madagascar, 11 & 14 January 2014