Trigonopterus cupreus

Trigonopterus cupreus is a species of flightless weevil in the genus Trigonopterus from Indonesia.

Etymology
The specific name is derived from the Latin word cupreus, meaning "copper-colored".

Description
Individuals measure around 2.43–3.05 mm in length. The head, legs, and ventral surface are rust colored, and the elytra are a reddish-copper color. The pronotum can either be reddish-copper like the elytra, or it can be bronze or green.

Range
The species is found around elevations of 1305 – in Batu Dulang and Tepal on the island of Sumbawa, part of the Indonesian province of West Nusa Tenggara.

Phylogeny
T. cupreus is part of the T. dimorphus species group.