Falconius gestroi Bolívar, 1898

Type material examined. 3♂♂ SYNTYPES Mentawei Sipora Sereinu V–VI.[18]94. Leg. Modigliani (MCSN). Photographs of the syntypes are available in OSF.

Type locality: Mentawai Islands by Sumatra: Sipura and Siberut.

Notes. This species is morphologically similar to F. karnyi, also inhabiting Mentawai Islands. They have wrinkled pronotum, with elevated interhumeral carinae, and they have elevations in the place of metamediolateral projections (MML2, MML3). Also in those species, the median carina is elevated between the shoulders. In all those characters, those two Mentawai species are morphologically similar to F. inaequalis from Myanmar.