Gonioctena (Brachyphytodecta) mauroi Cho & Borowiec, 2016

(Figs 11, 13)

Gonioctena (Brachyphytodecta) mauroi Cho & Borowiec, 2016a: 176 (original description).

Type locality. ‘ Vietnam, Lang Son Province, Loc Binh, Mt. Mau Son’ .

Type material examined. HOLOTYPE: ♂, ‘Tonkin, Montes Mauson, April, Mai 2-3000’, H. Fruhstorfer // HOLOTYPUS Gonioctena (Brachy.) mauroi sp. n. Cho & Borowiec 2015’ (LMCM).

Description. See CHO & BOROWIEC (2016a).

Differential diagnosis. Gonioctena (B.) mauroi is very similar to G. (B.) longshengensis sp. nov. and G. (B.) medvedevi in body shape, coloration and setose aedeagus. From these two species, G. (B.) mauroi can be distinguished only by aedeagus subparallel-sided with apical process widest in middle and slightly narrower than median lobe (subparallel-sided with apical process broad, widest in apical 1/3 and subequal to median lobe in width in G. (B.) longshengensis sp. nov. and moderately narrowed with apical process moderately widened to lateral tooth-like projections near apex in G. (B.) medvedevi). Gonioctena (B.) kuatunensis sp. nov.differs in semicircular apex of aedeagus (triangular or subtriangular in other species). Distribution. Vietnam: Lang Son Province (Fig. 13).