Canthidium (Canthidium) muticum (Boheman, 1858)

Chamorro, William, Marin-Armijos, Diego, senjo, Angelico & Vaz-De-Mello, Fernando Z., 2019, Scarabaeinae dung beetles from Ecuador: a catalog, nomenclatural acts, and distribution records, ZooKeys 826, pp. 1-343 : 26

Canthidium (Canthidium) muticum (Boheman, 1858) Plate 8C

Onthophagus muticus Boheman, 1858: 48 (original description. Type locality: Insula Ohau, Honolulu).

Onthophagus muticus : Macleay 1864: 124 (redescription), Harold 1867c: 48 (comment, proposed as Canthidium Erichson, 1847).

Canthidium muticum : Harold 1867b: 88 (new combination); Gemminger and Harold 1869: 1005 (complete list of species); Gillet 1911a: 56 (complete list of species); Vulcano and Pereira 1967: 593 (characters in key); Krajcik 2012: 62 (complete list of species); Cupello, 2018: 477 (transferred to Canthidium incertae sedis); Chamorro et al. 2018: 92 (cited for Ecuador).

Type specimens.

Onthophagus muticus Boheman, 1858. The holotype (♀) is deposited at the NRMS. Locality: Honolulu, examined.

Holotype (♀): "Hono- / lulu. [p]", "Kimb [p]", "Type [p]", "muticum. Bhm [p]", "Typus [p, red label, black margin]", "129 / 62 [p and hw, red label]", "Canthidium / muticum / Boh. [hw]", " 3980 / E92 + [p, blue label]", "muticum Boh. [hw]", "HOLOTYPE ♀ [hw, red label]".

Distribution.

Colombia and Ecuador.

Records examined.

EL ORO: Arenillas, 15 m (126 specimens CEMT); Reserva Biológica Arenillas, 325 m (1 specimen CEMT).

Temporal data.

Collected in April and June.

Remarks.

Inhabits coastal lowland semi-deciduous forests from 15-325 m a.s.l. Collected with pitfall traps baited with human feces and light traps. The distribution of this species is limited to the lowland semi-deciduous forests of the Pacific coast of Ecuador and Colombia.

According to Bousquet (2016: 84) and subsequently Cupello (2018: 477) the reports by Boheman (1858) are possibly incorrect with regard to their type localities. Specifically, it is likely that some specimens collected in the Neotropics were mingled with others caught in the Hawaiian archipelago.