Canthon (Goniocanthon) Pereira & Martínez, 1956

Nunes, Luis Gabriel de O. A., Nunes, Rafael V. & Vaz-De, Fernando Z., 2018, Taxonomic revision of the South American subgenus Canthon (Goniocanthon) Pereira & Martínez, 1956 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini), European Journal of Taxonomy 437, pp. 1-31 : 3-4

Canthon (Goniocanthon) Pereira & Martínez, 1956

Goniocanthon Pereira & Martínez, 1956: 109 .

Canton ( Goniocanthon ) Halffter & Martinez, 1977: 74.

Goniocanthon – Martinez 1959: 49 (catalogue). — Halffter 1961: 231 (monograph). — Vulcano & Pereira 1964: 592 (catalogue).

Canthon (Goniocanthon) – Vaz-de-Mello 2000: 191 (species list). — Medina et al. 2001: 136 (species list). — Vaz-de-Mello et al. 2011: 4, 12, 19, 26, 34, 42 (key).

Type-species

Canthon smaragdulus ( Fabricius, 1781) , by original designation.

Diagnosis

Among Scarabaeinae Latreille, 1802 , the tribe Deltochilini is characterized by having wing venation Radio Posterior 1 (RP1) with small basal appendix; venation Radio Anterior 4 (RA4) significantly thinner than RP1, and RA4 fused basally with RP1 ( Tarasov & Dimitrov 2016). Within the tribe, the subgenus Goniocanthon is differentiated by the following combination of characters: two clypeal teeth; pronotal and elytral discs smooth, shiny and lacking lateral tubercles or carinae; hypomeron lacking transverse keel; metasternal anterior lobe convex or flat; pygidium convex; dorso-ventral surfaces of the body bearing metallic sheen; and ventral surface of metafemur not marginate anteriorly ( Halffter & Martínez 1977; Vaz-de-Mello et al. 2011).