Trigonopterus delapan is a species of flightless weevil in the genus Trigonopterus from Indonesia.[1]
The specific name is derived the Indonesian word for "eight".
Individuals measure 2.04–2.08 mm in length. Body shape is slightly ovate. General coloration is black, with rust-colored tarsi and antennae.
The species is found at an elevation of 525m (1,722feet) in Labuan Bajo on the island of Flores, part of the Indonesian province of East Nusa Tenggara.
T. delapan is part of the T. saltator species group.