Onoreidium cristatum (Arrow, 1931)

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 : 158

Onoreidium cristatum (Arrow, 1931) Plate 34C

Trichillum cristatum Arrow, 1931: 610 (original description. Type locality: Loja 6600 feet [= 2010 m]; Piscobamba).

Trichillum cristatum : Paulian 1936a: 206 (characters in key); Balthasar 1939b: 18 (characters in key), 22 (distribution); Blackwelder 1944: 204 (list of species from Latin America); Vulcano and Pereira 1967: 578 (characters in key); Martínez 1969: 120 (comment); Bacchus 1978: 101 (catalogue of the types of the species described by Arrow).

Pedaridium cristatum : Génier and Vaz-de-Mello 2002: 191 (redescription).

Onoreidium cristatum : Vaz-de-Mello, 2008: 39 (cited as new combination, distribution), 58 (figure 27); Carvajal et al. 2011: 316-317 (cited for Ecuador); Krajcik 2012: 174 (complete list of species); Ratcliffe et al. 2015: 197 (cited for Peru); Chamorro et al. 2018: 96 (cited for Ecuador).

Pedaridium equatoriensis Ferreira & Galileo, 1993: 14 (original description); Génier and Vaz-de-Mello 2002: 191 (synonym of Pedaridium cristatum (Arrow, 1931), comment).

Type specimens.

Trichillum cristatum Arrow, 1931. The lectotype (♂) is deposited at the NHML (see Génier and Vaz-de-Mello 2002: 191). Locality: Ecuador, Piscobamba, not examined.

Pedaridium equatoriensis Ferreira & Galileo, 1993. The holotype (sex unknown) is deposited at the HAHC (ex. coll. H. Howden) (see Ferreira and Galileo 1993: 15) [= name-bearing types now in CMCN]. Locality: Loja: Macará Catacocha 1100 m, not examined.

Distribution.

Ecuador and Peru.

Records examined.

GUAYAS: Isla Puna (1 specimen CEMT). LOJA: without specific locality (1 specimen CEMT); Río Catamayo, 1500 m (2 specimens CEMT).

Literature records.

LOJA: Piscobamba ( Vaz-de-Mello 2008: 39); Macará-Catacocha, 1100 m ( Vaz-de-Mello 2008: 39); without specific locality, 2200 m ( Vaz-de-Mello 2008: 39).

Temporal data.

Collected in August.

Remarks.

Inhabits lowland semi-deciduous forests and matorral dry montane forests of the Andean region from 1110-2200 m a.s.l. The collection method is unknown.