Canthon (Glaphyrocanthon) semiopacus Harold, 1868

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 : 54-56

Canthon (Glaphyrocanthon) semiopacus Harold, 1868 Plate 14A

Canthon semiopacus Harold, 1868d: 57 (original description, Type locality: Brazilien [= Brazil], Cayenne).

Canthon semiopacus : Gemminger and Harold 1869: 993 (list, distribution); Harold 1875a: 59 (comment); Gillet 1911a: 33 (complete list of species); Schmidt 1922: 80 (list, distribution); Balthasar 1939d: 208 (characters in key); Medina et al. 2001: 136 (cited for Colombia); Hamel-Leigue et al. 2006: 13 (cited for Bolivia); Krajcik 2012: 64 (complete list of species); Ratcliffe et al. 2015: 195 (cited for Peru).

Canthon semiopacum : Blackwelder 1944: 201 (erroneously cited, list of species from Latin America).

Geocanthon semiopacus : Pereira and Martínez 1956a: 170 (new combination, redescription); Vulcano and Pereira 1964: 673 (catalog of species); Vulcano and Pereira 1967: 550 (characters in key).

Canthon (Glaphyrocanthon) semiopacus : Halffter and Martínez 1977: 80 (list of species); Vaz-de-Mello 2000: 191 (cited for Brazil); Medina et al. 2003: 64 (distribution); Chamorro et al. 2018: 86 (figure 9E), 93 (cited for Ecuador).

Type specimens.

Canthon semiopacus Harold, 1868. Two syntypes examined deposited at the MNHN and ZSM (ex coll. E Harold and ex coll. R Oberthür). Lectotype to be designated in a future work on this species group.

Distribution.

Bolivia, Brazil, Colombia, Ecuador, and Guyana.

Records examined.

NAPO: Talag Marungachi, 750 m (3 specimens MQCAZ). SUCUMBÍOS: Cuyabeno, Jungla lodge, 230 m (18 specimens MQCAZ); Cuyabeno Río Cuyabeno, Campo Hormiga, 225 m (5 specimens MUTPL); Pacayacu Campo Libertador Tapi, 260 m (1 specimen MUTPL); Cuyabeno Laguna Grande, 270 m (20 specimens MQCAZ); Tarapoa Campo Marian, plataform Fanny 5, 260 m (2 specimens MUTPL); Tarapoa, Nuevo Manabí, 270 m (1 specimen MUTPL).

Temporal data.

Collected in January, February, April, June, July, August, September, November, and December.

Remarks.

Inhabits the lowland evergreen forests and the foothill evergreen forests of the Amazon region from 225-750 m a.s.l. Collected with pitfall traps baited with human feces.