Aa) Hycleus dentatus species group

Hycleus dentatus (Olivier, 1811) (Fig. 3O) Mylabris dentata Olivier, 1811 Mylabris tortuosa Erichson, 1843 Coryna dentata, Bologna 1978

Distribution. Angola, Congo (new species record for this country: Boma, AMNH), and Namibia . Cited also from Senegal and Sierra Leone, but these western African citations need confirmation.

Material examined and literature records. [Omusati] Ruacana: Ruacana Falls (road C46), 17.4000°S 14.2833°E (CB). Outapi: Mahanene Res. Station, 17.4500°S 14.8000°E (SMWN). Okahao: C35, Kamanjab- Ruacana 25 km NW of Kamanjab, 18.4775°S 14.6977°E (CB); Otjiovasandu, Etosha N.P., 19.2500°S 14.5000°E (SMWN); Kaross, Etosha N.P., 19.3833°S 14.5333°E (SMWN). [Kunene] Epupa: Hippo Pool on Kunene River, 20 km W Ruacana, 17.4092°S 14.2185°E (CB); Okakatowo, 17.4500°S 12.7000°E (SMWN) ; Okambele, 17.6167°S 14.0500°E (SMWN). Opuwo: Opuwo town, 18.0500°S 13.8333°E (CB) ; 30 km WNW Orupembe, 18.1167°S 12.3500°E (SMWN) ; D3710, near Opuwo, 18.1589°S 13.9173°E (CB); D3710, near Opuwo, 18.2011°S 13.8994°E (CB); Kunene distr., C43, 18.7599°S 13.7489°E (CB); C35, Kamanjab-Ruacana, 18.9027°S 14.3903°E (CB). Sesfontein: Beisebvlakte, Etosha N.P., 19.0167°S 14.0833°E (SMWN); Kamanjab, D 2650, 19.8087°S 14.5128°E (CB). Kamanjab: C40, 26 km E Kamanjab, 19.6957°S 15.1046°E (CB); Outjo-Kamanjab 95 km N of Outjo, 19.8040°S 15.3290°E (CB); Otjitambi, 19.8167°S 15.1667°E (SMWN); C39, 25 km E Khorixas, 20.3061°S 15.1867°E (CB). [Oshikoto] Engodi: Okashana Agric . Experimental Station, 18.2500°S 16.6667°E (SMWN) ; 30 km W Oshivelo, 18.4870°S 17.0000°E (CB). Omuthiyagwiipundi: Okashana Experimental Station, 18.5833°S 16.6500°E (SMWN). Guinas: Tsumeb, Onguma 314, 18.7333°S 17.0500°E (SMWN). [Otjozondjupa] Otjiwarongo: D2430, 25 km N Otjiwarongo, 20.2667°S 16.6167°E (CB); Cleveland 17, 20.4050°S 16.6590°E (SMWN); Garfield, 20.4450°S 16.0830°E (SMWN); C63, Outjo-Kalkfeld 15 km N of Kalkfeld, 20.7537°S 16.2210°E (CB). Omatako: Waterberg, jct. roads C22-2512, 20.6333°S 17.1500°E (CB); Hamakari S 373, 20.6667°S 17.3833°E (SMWN) ; Hamakari S 373, 20.6667°S 17.4000°E (SMWN); Mount Etjo Safari Lodge, 21.0167°S 16.4167°E (CB); 100 km N Okahanjia , 21.0920°S 16.8280°E (CP); D2414, Etjo-Kalkfeld, Dinosaurus Tracks, 21.1156°S 16.4161°E (CB); D2414, Etjo-Kalkfeld 38 km SE of Kalkfeld, 21.1288°S 16.3883°E (CB); Okahandja Townlands, 21.6667°S 17.3333°E (SMWN). Okahandja: Ongambeanavita, 21.5800°S 16.5900°E (SMWN); 25 km N of Okahandja, 21.7619°S 16.8743°E (CB); B2, 31 km W Okahandja, 21.9157°S 16.6199°E (CB); D2192, 4 km jct. B2, 21.9490°S 16.5763°E (CB); Okahandja, 21.9833°S 16.9167°E (Péringuey, 1909; CP; SMWN) . [Erongo] Dâures: Otjihorongo Reserve, 20.9000°S 15.2000°E (SMWN) . Omaruru: Otjikoko-Sud 61, 21.2833°S 16.3667°E (SMWN); C33, 6 km S Omaruru, 21.4824°S 15.9508°E (CB); C33, 3– 9 km S of Omaruru, 21.4948°S 15.9705°E (CB) ; 20 km SE Omaruru, 21.6250°S 16.1250°E (JP); C33, 30 km jct. B2, 21.6681°S 15.9799°E (CB); C33, 30 – 20 km N Karibib, 21.6833°S 15.9667°E (CB). Karibib: D1935, 30 km NNW Usakos, 21.7833°S 15.5000°E (CB); C33, 17 km jct. B2, 21.8390°S 15.9233°E (CB); Karibib, 21.9333°S 15.8333°E (CB); B2, Usakos-Karibib, 16 km W Karibib, 21.9358°S 15.7056°E (CB); B2, 16 km W Karibib, 21.9358°S 15.7056°E (CB); D 1953, 100 m jct.. C32, 21.9552°S 15.8493°E (CB); B2, 8 km W Usakos, 21.9876°S 15.5057°E (CB); D1953, 45 km jct. C32, 22.2963°S 16.0658°E (CB). Arandis: Upper Panner Gorge, 22.4833°S 15.0167°E (SMWN). [Khomas] Windhoek Rural: D1525, Windhoek-Gobabis,to Bodenhausen, 1 km N from B6, 22.3968°S 17.6600°E (CB); C23, 26 km S Dordabis, 23.0575°S 17.9329°E (CB); C23, 38 km S Dordabis, 23.0715°S 18.0434°E (CB); D1228, 7 km ENE Rehoboth, 23.2833°S 17.2333°E (CB). Windhoek East: Windhuk, 22.5700°S 17.0836°E (CB); Windhoek, 22.5700°S 17.0836°E (JP). [Omaheke] Aminius: Leonardville, Gobabis, 23.5000°S 18.8000°E (SMWN) . Steinhausen: 10 km E Witvlei, 25.ii.1977 (AMNH) . [Hardap] Rehoboth Rural: B1, km 21, 23.4999°S 17.1284°E (CB); Garies Oos 489, 23.9000°S 16.5500°E (SMWN) . Gibeon: Harmonie, 24.7167°S 16.3833°E (SMWN). [Karas] Berseba: Helshoogte, 25.6667°S 16.8000°E (SMWN); C14, 51 km N Bethanien, 26.2919°S 17.0535°E (CB).

Other records: Swakop (Marseul 1872); Damaraland (Kaszab 1956); Namib Sand Sea desert (Seely 2012); Namibia (Bologna 2000a; Pitzalis et al. 2014).

Remarks. Types of this species, very distinct by its elytral pattern, are lost, but we examined specimens in the Marseul’s collection (MNHN) which have been probably compared with types.

Species greatly isolated in a possible monotypic group. It is well characterized by 11 antennomeres, dense silver setation on the body, but on elytra, mesosternum completely and densely setate, and unique elytral pattern (see Péringuey 1909).