Trigonopterus acuminatus is a species of flightless weevil in the genus Trigonopterus from Indonesia.[1]
The specific name is derived from Latin acuminatus, meaning "pointed", and refers to the shape of its elytra.
The holotype measured 3.14mm. General coloration is black with rust-colored legs and antennae.
T. acuminatus is native to the Indonesian province of East Java, on Mount Wilis. It occurs around altitudes of 1379m–1485mm (4,524feet–4,872feetm).