Trigonopterus diengensis is a species of flightless weevil in the genus Trigonopterus from Indonesia.
Etymology The specific name is derived from that of the type locality.
Description Individuals measure 1.92–2.36 mm in length. The body is slightly oval in shape. General coloration is black, with rust-colored legs and antennae.
Range The species is found around elevations of on the Dieng Plateau in the Indonesian province of Central Java.
References