Peltecanthon Pereira, 1953

Nunes, Luis Gabriel de O. A., Nunes, Rafael V. & Vaz-De, Fernando Z., 2020, Taxonomic revision of the South American subgenus Canthon (Peltecanthon) Pereira, 1953 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini), European Journal of Taxonomy 594, pp. 1-27 : 3-4

publication ID

https://doi.org/10.5852/ejt.2020.594

publication LSID

lsid:zoobank.org:pub:53DE5999-628D-47F5-9973-67CC54D06BC6

DOI

https://doi.org/10.5281/zenodo.3664187

persistent identifier

https://treatment.plazi.org/id/36733D04-FFF7-FFDB-FDD0-FB92FAB1FA22

treatment provided by

Plazi

scientific name

Peltecanthon Pereira, 1953
status

 

Peltecanthon Pereira, 1953

Peltecanthon Pereira, 1953: 396 .

Peltecanthon – Pereira & Martínez 1956: 94, 98, 182 — Martínez 1959: 26 — Halffter 1961: 230 — Vulcano & Pereira 1964: 573 — Halffter & Martínez 1967: 80.

Canthon (Peltecanthon) – Halffter & Martínez 1977: 75 — Vaz-de-Mello 2000: 191 (species list) — Medina et al. 2003: 24, 38, 45 — Vaz-de-Mello et al. 2011: 52 (key) — Cupello & Vaz-de-Mello 2018: 18, 46 — Vaz-de-Mello & Cupello 2018a: 46.

Type-species

Peltecanthon staigi Pereira 1953 , by original designation ( Pereira 1953).

Diagnosis

Among the Scarabaeinae , the tribe Deltochilini features the following characters: hind wing vein radio posterior 1 (RP1) with a small basal appendix and radio anterior 4 (RA4) clearly thinner than RP1 and basally fused with RP1 ( Tarasov & Dimitrov 2016). Among the Deltochilini , Canthon (Peltecanthon) can be differentiated by the following combination of characters: shiny pronotum and elytral disc, without tubercles or lateral carinae; ventral surface of the metafemora without anterior margin; and metafemora with elongated base, giving the femur a claviform shape ( Halffter & Martínez 1977; Vazde-Mello et al. 2011).

Key to the species of Canthon (Peltecanthon)

1. Dorsal surface with blue, green and red metallic reflections ( Figs 1A View Fig , 3A View Fig , 5A View Fig , 7A View Fig ). Metafemur base narrow, claviform, ventral surface without anterior margin ( Figs 1B View Fig , 3B View Fig , 5B View Fig , 7B View Fig ) ........................... ............................................................................................2 Subgenus Peltecanthon Pereira, 1953

– Dorsal surface having other colours and reflections. Metafemur base wide, not claviform, ventral surface with or without anterior margin ..................................other Canthon groups and subgenera

2. Dorsal surface with green metallic reflections ( Fig. 3A View Fig ). Metafemora with posterior longitudinal groove at their basal third ( Fig. 3B View Fig ). Hypomera lacking transverse carina ( Fig. 3C View Fig ). Pygidium basal margin (which separates it from pro-pygidium) lacking carina ( Fig. 3D View Fig ). Paramere apical margin sinuous ( Fig. 4A View Fig ). Brazilian Atlantic Forest (from Bahia to Rio de Janeiro) ..................................... ........................................................................................ Canthon (Peltecanthon) haroldi nom. nov.

– Dorsal surface with blue, green and/or red reflections ( Figs 1A View Fig , 5A View Fig , 7A View Fig ). Metafemur base is smooth ( Fig. 7A View Fig ) or with punctures ( Figs 1A View Fig , 5A View Fig ), always lacking longitudinal groove. Hypomera with transverse carina ( Figs 1C View Fig , 5C View Fig , 7C View Fig ). Pygidium basal margin (which separates it from pro-pygidium) carinate (with a V-shaped projection) ( Figs 1D View Fig , 5D View Fig , 7D View Fig ). Paramere apical margin straight, substraight or sinuous ............................................................................................................................. 3

3. Elytra and pronotum of different colours; dorsal surface of elytra blue, pronotum with green and red reflections ( Fig. 5A View Fig ). Hypomera with transverse carina strongly marked and interrupted near external margin ( Fig. 5C View Fig ). Pygidium basal margin with weak carina ( Fig. 5D View Fig ). Paramere apical margin strongly sinuous ( Fig. 6A View Fig ). Southern Brazilian Atlantic Forest (Minas Gerais, Espírito Santo and Rio de Janeiro ............................................ Canthon (Peltecanthon) splendidus Schmidt, 1922

– Elytra and pronotum of equal colours; dorsal surface of elytra and pronotum blue, red or green. Hypomera with transverse carina finely marked and interrupted at mid-portion (e.g., Figs 1C View Fig , 7C View Fig ). Pygidium basal margin with strong carina. Paramere apical margin sub-straight (e.g., Figs 2 A View Fig , 8 A View Fig ). ...............................................................................................................................................................4

4. Dorsal surface with blue or green reflections, pronotum and elytra of same colour ( Fig. 1 A View Fig ). Metafemur with basal portion punctures ( Fig. 1B View Fig ). Atlantic Forest in Brazil (from Pernambuco to Paraná), Paraguay and Argentina.............................. Canthon (Peltecanthon) staigi ( Pereira, 1953)

– Dorsal surface with red or light green reflections, pronotum and elytra of same colour ( Fig. 7A View Fig ). Metafemur with basal portion smooth, lacking punctures ( Fig. 7A View Fig ). Northern Brazilian Atlantic Forest (Rio Grande do Norte, Paraíba, Pernambuco and Sergipe) ..................................................... ............................................................................................ Canthon (Peltecanthon) terciae sp. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Loc

Peltecanthon Pereira, 1953

Nunes, Luis Gabriel de O. A., Nunes, Rafael V. & Vaz-De, Fernando Z. 2020
2020
Loc

Canthon (Peltecanthon)

Vaz-de-Mello F. Z. & Cupello M. 2018: 46
Vaz-de-Mello F. Z. & Edmonds W. D. & Ocampo F. & Schoolmeesters P. 2011: 52
Medina C. A. & Scholtz C. H. & Gill B. D. 2003: 24
Vaz-de-Mello F. Z. 2000: 191
Halffter G. & Martinez A. 1977: 75
1977
Loc

Peltecanthon

Halffter G. & Martinez A. 1967: 80
Vulcano M. A. & Pereira F. S. 1964: 573
Halffter G. 1961: 230
Martinez A. 1959: 26
Pereira F. S. & Martinez A. 1956: 94
1956
Loc

Peltecanthon

Pereira F. S. 1953: 396
1953