Tetrabothrus malaysianus PACE, 2013

Assing, Volker, 2016, On some Lomechusini of the Palaearctic and Oriental regions (Coleoptera: Staphylinidae: Aleocharinae), Beiträge Zur Entomologie = Contributions to Entomology 66 (1), pp. 13-111 : 97

Tetrabothrus malaysianus PACE, 2013

Tetrabothrus malaysianus PACE, 2013: 50 f.

Material examined: Malaysia: 1 ♂, Borneo, Sabah, Danum Valley , 4°58'N, 117°47'E, flight interception trap, VI.1999, leg. Mendel ( BMNH) . Indonesia: 25 exs., Borneo, Kalimantan Tengah, confluence of Busang and Rekut , 0°03'S, 113°59'E, flight interception trap, VIII.2001, leg. Brendell ( BMNH, cAss) .

Comment: The original description is based on a unique male from “ Malaysia, Hulu Perak, Bangunan, Camp c/o Kampung Semelor, E shore Lake Tasek-Temengor, 230 m ” ( PACE 2013). The aedeagus of the above material is in agreement with that illustrated by PACE (2013). It somewhat resembles that of T. clavatus in lateral view, from which T. malaysianus is readily distinguished by much darker coloration of the body, the coloration of the legs (yellowish with infuscate femoral apices), much darker antennae, a differently shaped pronotum, the presence of non-setiferous punctation in the anterior portion of tergite VII, the almost acutely pointed posterior margin of the male sternite VIII, and by the shape of the median lobe of aedeagus (particularly in ventral view).

The above material represents the first records since the original description, the first records from Borneo, and (specimens from Kalimantan Tengah) the first record from Indonesia.