Trigonopterus merubetirensis 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 2.88–3.31 mm in length. General coloration is black, except for the legs and head, which are rust-colored, and the elytra, which are dark rust colored with a faint black stripe running transversely across the middle and a blacks spot at the apex.
Range The species is found around elevations of in Meru Betiri National Park, part of the Indonesian province of East Java.
Phylogeny T. merubetirensis is part of the T. dimorphus species group.
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