Deltochilum (Deltohyboma) aequinoctiale (Buquet, 1844)

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 : 91-93

Deltochilum (Deltohyboma) aequinoctiale (Buquet, 1844) Plate 21D

Hyboma aequinoctialis Buquet, 1844: 21 (original description. Type locality: Colombie [= Colombia]).

Deltochilum aequinoctiale : Burmeister 1848: 135 (redescription); Gemminger and Harold 1869: 995 (list, distribution); Gillet 1911a: 35 (complete list of species); Balthasar 1941: 344 (cited for Peru); Blackwelder 1944: 202 (list of species from Latin America); Balthasar 1951: 329 (cited for Peru); Contreras 1951: 221 (cited for Colombia, cited as D. aequinoctiale ); Medina et al. 2001: 136 (cited for Colombia); Medina et al. 2003: 65 (distribution); Krajcik 2012: 88 (complete list of species); Ratcliffe et al. 2015: 195 (cited for Peru).

Deltochilum (Deltohyboma) aequinoctiale : Paulian 1938: 270 (characters in key), 278 (redescription); Vulcano and Pereira 1964: 652 (catalog of species, distribution); Vulcano and Pereira 1967: 557 (characters in key); Carvajal et al. 2011: 316-317 (cited for Ecuador); Chamorro et al. 2018: 85 (figure 8H), 86 (figure 9A), 94 (cited for Ecuador).

Deltochilum erodioides Harold, 1867d: 77 (original description); Gemminger and Harold 1869: 995 (list, distribution); Harold 1880a: 18 (cited for Colombia); Kirsch 1885: 212 (cited for Ecuador); Gillet 1911a: 36 (complete list of species); Paulian 1938: 278 (synonym of D. (D.) aequinoctiale Buq.); Blackwelder 1944: 202 (list of species of Latin America); Contreras 1951: 222 (cited for Colombia); Vulcano and Pereira 1964: 652 (cited as synonym of Deltochilum aequinotiale Buquet); Carvajal et al. 2011: 316-317 (cited for Ecuador); Ratcliffe et al. 2015: 195 (cited for Peru).

Type specimens.

Hyboma aequinotialis Buquet, 1844. One syntype examined deposited at the MNHN (ex coll. D Sharp). Lectotype to be designated in a future work on this species group.

Deltochilum erodioides Harold, 1867. Two syntypes examined deposited at the MNHN (ex coll. E Steinheil, ex coll. E Harold, ex coll. R Oberthur). Lectotype to be designated in a future work on this species group.

Distribution.

Colombia, Ecuador, and Peru.

Records examined.

COTOPAXI: Bosque Integral Otonga, 2080 m (78 specimens CEMT: 7 specimens MQCAZ; 4 specimens MUTPL). PICHINCHA: Chespi, Bellavista, 1380 m (1 specimen MUTPL); Yunguilla, Loma La Liberia, 2400 m (2 specimens MUTPL); Reserva Orquideológica El Pahuma, 1975 m (1 specimen MUTPL).

Literature records.

BOLIVAR: au dessus de Chimbo, 1900 m ( Paulian 1938: 280). MORONA SANTIAGO: Macas ( Paulian 1938: 280).

Temporal data.

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

Remarks.

Inhabits the evergreen lower montane forests and montane cloud forests of the Andean region from 1300-2400 m a.s.l. Collected with pitfall traps baited with carrion and human feces. It is possible that the records cited by Paulian (1938) from Macas, Morona Santiago province, in the Ecuadorian Amazon, is a different species belonging to the same subgenus. A review of these species is needed.