Omorgus (Afromorgus) chinensis (Boheman, 1858)

(Figs. 6–7)

Trox chinensis Boheman, 1858: 52 (original description).

Trox chinensis: Harold 1872: 104 (redescription); Lewis 1895: 386 (specimens of Japan); Arrow 1912: 54 (catalogue); Balthasar 1936: 438 (diagnosis); Haaf 1954: 387 (diagnosis, illustration, key).

Trox (Omorgus) chinensis: Scholtz 1982: 9 (catalogue).

Omorgus (Afromorgus) chinensis: Zidek 2013: 8, 20 (checklist); Zidek 2017: 13, 112 (checklist).

Afromorgus chinensis: Pittino 2006: 79 (new combination, catalogue); Pittino & Bezdĕk 2016: 53 (catalogue); Singh et al. 2023: 370–373 (DNA-barcoding, biology, forensic entomology).

Omorgus chinensis: Ying 2019 (mitogenome, GenBank: MK937809.1); Yu et al. 2022: 70–72 (mitogenome).

Trox obscurus Waterhouse, 1875: 98 (original description). Type locality: “ Hong Kong ”. Type depository: Holotype (male) at NHMUK (Figs. 8–11). Synonymised by Arrow 1927: 466.

Trox obscurus: Nakane & Tsukamoto 1955: 87 (specimens of Japan, key); Kim 2012: 4, 20 (specimens of Korea, treated as a valid species: Omorgus obscurus).

Type depository. Syntype (male) at NHRS (Figs. 6–7) .

Type locality. “ China (Hong Kong)” .

Distribution. Cambodia, China (including Taiwan), Indonesia, Korea, Malaysia, Japan, Vietnam (Masumoto et al. 2005; Kim 2012; Pittino & Bezdĕk 2016; Schoolmeesters 2023).