Ptomaphaginus bryanti Jeannel, 1936

Schilthuizen, Menno, Perreau, Michel & Njunjic, Iva, 2018, A review of the Cholevinae from the island of Borneo (Coleoptera, Leiodidae), ZooKeys 777, pp. 57-108 : 64-66

Ptomaphaginus bryanti Jeannel, 1936

Ptomaphaginus Bryanti Jeannel, 1936: 56-59, figs 63-66; type from Mt. Matang, Sarawak, Borneo (in NHMUK).

Description.

Length 2.8 mm. Winged. Slender build (pronotum 1.56 times wider than long), as wide as the elytra. Aedeagus subterminally with two lateral extensions and a long median processus (the image given by Jeannel [1936] is erroneous, due to mounting error [ Schilthuizen and Perreau 2008]).

Differential diagnosis.

Very similar to P. bryantioides , from which it differs chiefly (as far as can be discerned from the single P. bryanti individual available) by its more slender habitus.

DNA barcodes.

In the BOLD database, COI barcodes are available for RMNH.INS.555591 and 555594, two specimens that possibly belong to this species (See under Habitat and distribution).

Habitat and distribution.

To date only known from the type location, Mt. Matang in Sarawak. However, given the great molecular distances ( Merckx et al. 2015) that we find among Sabah populations of P. bryantioides , a more robust species with an aedeagus nearly indistinguishable from P. bryanti (see below), we suspect that some specimens assigned to that species, especially those from Sugud (BOLD BIN ACJ9515, RMNH.INS.555591 and 555594), may in fact belong to P. bryanti (although they are not as slender as the holotype of P. bryanti ).