Medon sabahicus, Assing, 2018

Assing, Volker, 2018, A revision of Medon. XI. Five new species, additional records, and the first confirmed records from the Oriental region (Coleoptera: Staphylinidae: Paederinae), Beiträge Zur Entomologie = Contributions to Entomology (Beitr. Entomol.) 68 (1), pp. 69-81: 77

publication ID 10.21248/contrib.entomol.68.1.069-081

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Medon sabahicus

spec. nov.

Medon sabahicus   spec. nov.

( Figs 22–25 View Figs 13–25 )

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. Assing 2015” ( BMNH).  

Etymology: The specific epithet (adjective) is derived

from Sabah, where the type locality 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 View Figs 13–25 ) transverse, posterior margin with broad and pronounced concavity, on either side with a comb of 8 palisade setae; sternite VIII ( Fig. 23 View Figs 13–25 ) with a rather large posterior excision of subtriangular shape; aedeagus 0.51 mm long and shaped as in Figs 24–25 View Figs 13–25 .

Comparative notes: This species is distinguished from the similar M. sundaicus   by 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 holotype was collected with a flight interception trap in a logged forest.