Trigonopterus allopatricus is a species of flightless weevil in the genus Trigonopterus from Indonesia.[1]
The specific name is derived from Greek allos, meaning "other", and Latin patria, meaning "homeland". The name refers to the species' fragmented habitats.
The body is elongated, with the holotype measuring 2.60mm long. General coloration is black with rust-colored legs and head.
The species is found in the Indonesian province of West Java, around elevations of 1560m–2050mm (5,120feet–6,730feetm) on Mt. Bukittinggul, Mt. Cakrabuana, Mt. Cikuray, Mt. Payung, Mt. Sawal, Talagabodas, and Mt. Tikukur.