Omorgus (Afromorgus) gemmatus (Olivier, 1789)

(Figs. 21–23)

Trox gemmatus Olivier, 1789: 7 (original description).

Trox gemmatus: Fabricius 1792: 86 (redescription); Fabricius 1801: 109 (redescription); Harold 1871: 28 (specimens of Bogos [Bilen Territory, Anseba region in central Eritrea]); Harold 1872: 65 (description, key); Reitter 1892: 151 (diagnosis, key); Arrow 1912: 56 (catalogue); Balthasar 1936: 434 (diagnosis, key); Haaf 1954: 334 (description, key, illustrations); Frey & Villiers 1971: 137 (specimens of Senegal); Endrödi 1976: 155 (specimens of Ghana).

Trox (Omorgus) gemmatus: Alfieri 1976: 212 (specimens of Egypt); Scholtz 1980a: 140 (specimens of Saudi Arabia); Scholtz 1980b: 40 (redescription, illustrations, distribution); Scholtz 1982: 10 (catalogue).

Afromorgus gemmatus: Pittino 2006: 79 (new combination, catalogue); Pittino & Bezdĕk 2016: 54 (catalogue); Král & Batelka 2017: 80 (specimens of United Arab Emirates, distribution).

Omorgus (Afromorgus) gemmatus: Zidek 2013: 10 (checklist); Coache 2014: 20 (specimens of Senegal); Zidek 2017: 101 (checklist).

Type depository. Type is reportedly lost (Scholtz 1980b: 40).

Type locality. “ Sénégal ” .

Distribution. Omorgus (A.) gemmatus is widespread throughout the Afrotropical region and the arid southern Palaearctic. It has been recorded from the following countries: Chad, Djibouti, Egypt, Ethiopia, Ghana, Guinea, Mali, Mauritania, Niger, Nigeria, Oman, Saudi Arabia, Senegal, Somaliland, Sudan, United Arab Emirate (Balthasar 1936; Alfieri 1976; Scholtz 1980a,b; Pittino 2005, 2006; Coache 2014; Král & Batelka 2017; Král et al. 2023).