A revision of Medon. XI. Five new species, additional records, and the first confirmed records from the Oriental region (Coleoptera: Staphylinidae: Paederinae) Assing, Volker Beiträge Zur Entomologie = Contributions to Entomology 2018 Beitr. Entomol. 2018-08-01 68 1 69 81 3YQ82 Assing, 2018 Assing 2018 [892,1075,490,517] Insecta Staphylinidae Medon Animalia Coleoptera 8 77 Arthropoda species sabahicus sp. nov.  ( Figs 22–25)   Type material:  Holotype♂: “ Malaysia, Sabah, Sandakan, S Lokan ( LF) [= logged forest], March 97, AYC Chung / FIT 9/3/4 / Pae50 / BMNH {E} 2002-113, A. Y. C. Chung, LF - Logged Forest/ Holotypus♂  Medon sabahicus sp. n.det. V. Assing2015” ( BMNH).   Etymology: The specific epithet (adjective) is derived from Sabah, where the typelocality is situated.   Description: Body length 3.7 mm; length of forebody 2.0 mm. Elytra brown, with the humeral portion paler. Other external characters as in  M. sundaicus. ♂: sternite VII ( Fig. 22) transverse, posterior margin with broad and pronounced concavity, on either side with a comb of 8 palisade setae; sternite VIII ( Fig. 23) with a rather large posterior excision of subtriangular shape; aedeagus 0.51 mmlong and shaped as in Figs 24–25.  Comparative notes: This species is distinguished from the similar  M. sundaicusby slightly larger size, the darker coloration of the elytra, the differently shaped posterior margin of the male sternite VII with longer combs of more numerous palisade setae, and by the longer aedeagus with a differently shaped apex (ventral view) and without a dark internal structure.   Distribution and natural history: The type locality is situated in Sabah, northeastern Borneo, Malaysia. The holotypewas collected with a flight interception trap in a logged forest. 3457817337 LF, BMNH A. Y. C. Chung Malaysia V. Assing Logged Forest Sandakan 8 77 2 Sabah holotype