Eurysternus marmoreus Castelnau, 1840

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 : 144

Eurysternus marmoreus Castelnau, 1840 Plate 31B

Eurysternus marmoreus Castelnau, 1840: 93 (original description. Type locality: Mexique [= Mexico] and Colombie [= Colombia]).

Eurysternus marmoreus : Guérin-Méneville 1855: 590 (redescription); Gemminger and Harold 1869: 1024 (catalog); Harold 1880a: 13 (distribution); Gillet 1911a: 25 (catalog); Blackwelder 1944: 197 (list of species from Latin America); Vulcano and Pereira 1967: 547 (characters in key); Jessop 1985: 1091 (characters in key), 1100 (redescription); Medina et al. 2001: 135 (list of species from Colombia); Huerta et al. 2003: 17 (Biology); Génier 2009: 193 (diagnosis), 290 (characters in key); Camero 2010: 150 (characters in key), 171 (diagnosis); Carvajal et al. 2011: 314-315 (cited for Ecuador); Krajcik 2012: 107 (complete list of species); Ratcliffe et al. 2015: 195 (cited for Peru); Chamorro et al. 2018: 78 (figures 1A and 1E), 95 (cited for Ecuador).

Eurysternus pectoralis Guérin-Méneville, 1855: 590 (original description); Gemminger and Harold 1869: 1024 (catalog); Gillet 1911a: 26 (catalog); Blackwelder 1944: 197 (list of species from Latin America); Jessop 1985: 1106 (comment); Génier 2009: 194 (synonym of Eurysternus marmoreus Castelnau, 1840); Camero 2010: 171 (cited as synonym of Eurysternus marmoreus Castelnau, 1840).

Eurysternus (Eurysternus) pectoralis : Vaz-de-Mello 2000: 193 (cited for Brazil).

Type specimens.

Eurysternus marmoreus Castelnau, 1840. The neotype (♀) is deposited at the MNHN (see Génier 2009: 195). Locality: Fusagas[ ugá], not examined.

Eurysternus pectoralis Guérin-Méneville, 1855. The neotype (♂) is deposited in MNHN (see Génier 2009: 195). Locality: Ecuador 71, E deVille, not examined.

Distribution.

Bolivia, Colombia, Ecuador, Peru, and Venezuela.

Records examined.

COTOPAXI: Bosque Integral Otonga, 2200 m (1 specimen CEMT; 6 specimens MQCAZ). NAPO: San Rafael (2 specimens MECN). PICHINCHA: Chiriboga (2 specimens MECN). SUCUMBÍOS: Sebundoy, 2200 m (2 specimens MECN); TUNGURAHUA: Baños EL Topo, 1590 m (3 specimens CEMT). ZAMORA CHINCHIPE: Río San Francisco, 1470 m (1 specimen MUTPL); Reserva Biológica el Colibrí, 2200 m (14 specimens MUTPL); Romerillos sendero Nangaritza, 2200 m (9 specimens MECN).

Literature records.

NAPO: 17 km NE de Baeza, 4 km SW del Chaco, 1280 m ( Génier 2009: 197); 7 km S de Baeza, 2000 m ( Génier 2009: 197); Cabañas San Isidro, 2 km NW de Cosanga, 2150 m ( Génier 2009: 197); Piviyacu Los Guacamayos, 1800 m ( Génier 2009: 197). UNDETERMINED PROVINCE: Naranjal [= possibly GUAYAS] ( Génier 2009: 197).

Temporal data.

Collected in January, February, March, May, July, August, October, November, and December.

Remarks.

Inhabits coastal lowland evergreen forests. In the Andean region, it was recorded in the evergreen lower montane forests and the montane cloud forests from 1300-2300 m a.s.l. In the Amazon, it was recorded in the foothill evergreen forests at 1280 m a.s.l. Collected with flight interception traps and pitfall traps baited with carrion and human feces.