Scelimena hexodon species group

Hexocera: Hancock 1915, Günther 1938a, Blackith 1992, Yin et al. 1996, Otte 1997; syn. nov.

Type species: Acridium (Tetrix) hexodon Haan, 1843 (= Scelimena hexodon comb. resurr.)

Composition and distribution. Two species inhabiting Borneo ( S. hexodon comb. resurr.) and Sumatra ( S. marta sp. nov.).

Notes. This group is close to Scelimena producta species group, but its members have larger pronotal projections (strong metalateral spines or tubercles, strongly elevated first metamedial projection, and large ventrolateral spines). Size of the pronotal projection itself is not a satisfying character.