Ptomaphaginus burckhardti Schilthuizen & Perreau, 2008

Schilthuizen, Menno, Perreau, Michel & Njunjic, Iva, 2018, A review of the Cholevinae from the island of Borneo (Coleoptera, Leiodidae), ZooKeys 777, pp. 57-108 : 66-68

Ptomaphaginus burckhardti Schilthuizen & Perreau, 2008 Figures 5f, 7g, h, 9c

Ptomaphaginus burckhardti Schilthuizen & Perreau, 2008: 202-203, figs 7-8; type from Gunung Kinabalu, Sabah, Borneo (in MHNG).

Description.

(Adapted from Schilthuizen and Perreau (2008)). Length 2.5 mm. Habitus slender, ovoid. Pronotum 1.7 times as wide as long, slightly broader than the elytra. Elytra slender, 1.25 times as long as their combined width (length measured from the caudal tip of the scutellum to the apex of the elytra). Uniformly light brown. Wingless. Eyes reduced. Elytra laterally not curved, narrowed caudad in an approximately straight line. Male with a large and deep semicircular depression extended on the 5th and 6th visible abdominal sternites, bordered on the front half with long and dense setae, and a central notch on the apical edge of the 6th. Aedeagus slender. The apex is tapered terminally and ends in a flattened, duck-bill-shaped processus. It carries several long, curved, lateral setae.

Differential diagnosis.

Unique among the Bornean Ptomaphaginus because of its small, slender build, reduced eyes, and long, slender aedeagus.

Habitat and distribution.

Only two specimens known (holotype and paratype), from upper montane forest at 2600 m elev. on Gunung Kinabalu.