Sulabanus ambangensis sp. nov.

(Figs. 57–58)

Type material. Holotype. Male. Indonesia, Sulawesi Utara, Gn. Ambang F. R., nr. Kotamobagu, 30 May 1985. R. Ent. Soc. Lond., Project Wallace, B. M. 1985–10, G. Muajat, 1780 m. 4 paratypes. 4 males, Sulawesi Utara, R. Ent. Soc. Lond., Project Wallace, B. M. 1985–10, Gn. Ambang F. R., nr. Kotamobagu, II.–XI. 1985 (BMNH).

Differential diagnosis. Sulabanus ambangensis is placed in the S. pendolensis group on the basis of the shape of male genitalia and it resembles other completely dark coloured species in this group. This species is characterized by its very slender phallus (phallus 6.3 times longer than width at the apex, Figs. 57–58).

Description. Body dark brown to black coloured. Head partly hidden by pronotum. Frontal interocular distance 1.31 times eye diameter. Pronotum flat, 1.23 times wider that long. Elytra parallel–sided, 3.7 times longer than width at humeri. Male genitalia long, slender, with lightly widened apical part (Figs. 57–58). Measurements. BL 5.35 mm, HW 1.19 mm, PL 0.71 mm, PW 0.88 mm, Ediam 0.35 mm, Edist 0.46 mm, EL 4.45 mm.

Distribution. Sulawesi, known only from the type locality in Northern Sulawesi. Etymology. The species is named after the type locality Gunung Ambang in the Northern Sulawesi province.