Omorgus (Afromorgus) squalidus (Olivier, 1789)

(Figs. 74–75)

Trox squalidus Olivier, 1789: 12 (original description).

Trox squalidus: Laporte [de Castelnau] 1840: 107 (catalogue); Harold 1871: 28 (specimens of Bogos [Eritrea]); Harold 1872: 107 (description, diagnosis); Gerstaecker 1873: 118 (specimens of Zanzibar); Reitter 1892: 150 (diagnosis, key); Arrow 1912: 61 (catalogue); Balthasar 1936: 437 (diagnosis); Paulian 1948: 141 (checklist); Haaf 1954: 373 (description, diagnosis, illustrations); Haaf 1955b: 48 (checklist, key); Frey & Villiers 1971: 137 (specimens of Senegal); Endrödi 1976: 155 (specimens of Ghana); Scholtz 1978: 86 (distribution); Scholtz 1979: 187 (lectotype designation, redescription, key, illustration, distribution).

Trox (Omorgus) squalidus: Scholtz 1980a: 139 (diagnosis, key, illustrations); Scholtz 1980b: 23 (neotype designation, redescription, key, illustration, distribution); Scholtz 1982: 13 (catalogue).

Omorgus (Afromorgus) squalidus Scholtz 1986: 362 (systematics, type species designation); Scholtz 1993: 4 (description of larva); Zidek 2013: 17 (checklist); Coache 2014: 21 (specimens of Senegal); Strümpher et al. 2016: 72 (systematics); Zidek 2017: 108 (checklist).

Trox incultus Fåhraeus, 1857: 377 (original description). Type locality: “Caffraria”. Type depository: Lectotype (female) and one paralectotype at NHRS (Figs. 76–77); other paralectotypes at RBINS and NHMUK. Synonymised by Harold 1872: 108.

Trox incultus: Peringuey 1900: 464 (redescription, illustrations); Arrow 1912: 57 (catalogue); Paulian 1944: 8 (checklist, key).

Trox gonoderus Fairmaire, 1901: 135 (original description). Type locality: “Suberbieville” (Madagascar). Type depository: Holotype (female) in MNHN (Figs. 78–79). Synonymised by Paulian 1936: 134.

Type depository. Neotype (male) at TMSA (Figs. 74–75).

Type locality. “ Senegal ” .

Distribution. Algeria, Botswana, Burkina Fasso, Chad, Egypt, Ethiopia, Ghana, Ivory Coast, Madagascar, Malawi, Mauretania, Mozambique, Namibia, Nigeria, Republic Democratic Congo, Republic of the Congo, Republic South Africa, Saudi Arabia, Senegal, Somaliland (Somalia), Tanzania, Uganda, Zambia, Zimbabwe (Scholtz 1980b; Schoolmeesters 2023; Král et al. 2023).