Omorgus (Haroldomorgus) batesi ( Harold, 1872 ), 1986

Costa-Silva, Vinícius, Strümpher, Werner P. & Vaz-de-Mello, Fernando Z., 2021, Review of the Brazilian species of Omorgus Erichson, 1847 (Coleoptera: Trogidae: Omorginae), Journal of Natural History 54 (31 - 32), pp. 1993-2024 : 1997-1999

Omorgus (Haroldomorgus) batesi ( Harold, 1872)

( Figure 1 a-c, 8)

Trox batesi Harold, 1872: 126 (original description); Arrow 1912: 54 (catalogue); Blackwelder 1944: 128 (catalogue); Vaurie 1962: 154 (redescription).

Trox (Omorgus) batesi: Scholtz 1982: 8 (catalogue).

Omorgus (Haroldomorgus) batesi: Scholtz 1986: 362 (phylogenetics); Scholtz 1990: 1418 (redescription); Zídek 2013: 7 (catalogue); Strümpher et al. 2014b: 549 (systematics); Strümpher et al. 2016: 62 (systematics); Zídek 2017: 98 (catalogue); Hielkema and Hielkema 2019: 10 (checklist for the Guianas).

Type material examined

Holotype, by monotypy: (♂, MNHN, through photographs, Figure 1 a-c). First label [blue]: ‘Batesi/typ./Harold’ [Harold’s handwriting]. Second label [white label]: ‘Amaz.’ [Bates’ handwriting]. Third label [white with black border, typeset]: ‘Ex-Musaeo/H.W. Bates/1892’ [vertically]. Fourth label [white, typeset]: ‘Muséum Paris/ex Coll./R. Oberthür/1952’. Fifth label [red, typeset]: ‘TYPE’. Sixth label [red, with a black border, typeset]: ‘HOLOTYPE’. Seventh label [white, typeset]: ‘ HOLOTYPE / Omorgus / batesi ( Harold 1872) ’. Eighth label [white, typeset]: ‘MNHN/EC9646’. Type locality: BRAZIL: Amazonia (cited by Harold as ‘Amazonestrom’).

Note. The lectotype designated by Scholtz (1990, p. 1418) from RBINS for Trox batesi does not belong to the original type series of this species (see Hielkema and Hielkema 2019).

Additional material examined

BOLIVIA: Santa Cruz, El Cidral, 1–28 .i .1962, R . Golbach leg . (1 IFML). BRAZIL: Roraima, Caracaraí, vii .1997, F . Vaz-de-Mello leg . (1 CEMT); Rio Uraricoera / Ilha de Maraca , 2–13 .v .1987, malaise [trap], J .A . Rafael, J.E.B . Brasil and L .S. Aquino leg . (1 ♀ CEMT) . Pará, Jacareacanga , x .1959, M . Alvarenga leg . (2 CEMT); Jacareacanga , xii .1968, M . Alvarenga leg . (6 DZUP); Parauapebas , 31 .x .2010, R .A . Zampaulo leg . (2 CEMT, 1 IEXA); Parauapebas , 5 .v .2011, R .A . Zampaulo leg. (1 CEMT). Maranhão, Bom Jardim, Reserva Biológica do Gurupi , 3°14’S 46° 41 ʹ W, 7–15 .i .2011, light trap, F . Limeira-de-Oliveira, M .M . Abreu and E .A.S. Barbosa leg . (1 ♂ CEMT) . Amazonas, Barcelos, near Rio Unini , 1°35’S 61°33 ʹ W, 19–20 .xi .1995, mercury vapour/ black light, C . Motta and Freire leg . (1 CEMT); Parque Nacional do Jaú, Rio Carabinani , 1°59’S 61°32 ʹ W, 16–17 .iv .1994, mercury vapour/black light, C. Motta et al leg. (1 CVMD) Tocantins, Pium, CanguÇu /UFT [= Federal University of Tocantins], 01–02 .xi .2016, light, B .C . Ganns leg . (1 ♀ CEMT); Porto Nacional , 10°31 ʹ 8”S 48°17 ʹ 35”W, 7 .xi .2015, light trap, A . Specht leg . (1 CEMT). Bahia, Muruci , ii .1971, P .C . Elias leg (1 MZSP). Mato Grosso, Poconé , Pousada Araras, 3 .xii .1998, J .L . Moreno and T . Mestre leg . (1 CEMT); Rio Branco , xii .1984, Magno & Alvarenga leg . (1 ♂ CEMT); Rosário Oeste , x .1961, no collector (1 DZUP); Santa Terezinha, ‘ Barra do Itapirapé’ , xi .1964, B . Malkin leg . (1 MZSP); Várzea Grande, Sesc Pantanal , 10 .xi .2004, light trap, no collector (1 ♀ CEMT); Várzea Grande, Sesc Pantanal , 21 .xi .2003, no collector (1 ♀ CEMT); Xingu , xi .1961, Alvarenga and Werner leg. (1 MZSP). Mato Grosso do Sul, Corumbá, Reserva Particular do Patrimônio Natural Acurizal , 17°49’S 57°33 ʹ W, 24–26 .vi .2012, light trap, F .R . Tortato leg . (1 ♀ CEMT); Corumbá, Fazenda Santa Blanca , 7 .xii .1960, K . Lenko leg . (2 MZSP); Miranda, EstaÇão Ferroviária Salobra , i .1955, no collector (1 MZSP); Rio Verde de Mato Grosso , x .1962, no collector (1 DZUP). Espirito Santo, Barra de São Francisco , Corrego Itá, xi .1954, W . Zikan leg . (2 MZSP); Santa Teresa , 19 .xii .1966, C . Elias & C .T. Elias leg . (1 DZUP); Sooretama , xi .1962, A . Martinez leg . (3 SAMC, 1 ♀ MACN); Sooretama , 2 .xi .1964, Werner, Oliveira and Seabra leg . (1 DZUP). Rio de Janeiro, Araruama, Represa de Juturnaíba , xi .1981, M . Alvarenga leg . (1 CEMT); Campos dos Goytacazes , i .1942, M . Alvarenga leg . (1 DZUP). São Paulo, Pradópolis , x .1976, P .S .M. Botelho leg. (1 CEMT). Paraná, Jussara , 12 .xii .1975, ExpediÇão do Depepartamento de Zoolologia da UFPR (= Federal University of Paraná ) leg. (1 DZUP) . PARAGUAY: San Pedro, Rio Ypane , xi .1979 (1 SAMC). Canindeyú, Salto del Guairá , 13 .xii .1990, G . Arriágada leg . (1 CVMD); Teniente Enciso , 2–3 .xi .2001, C . Aguilar leg . (1 ♂, 1 CVMD) . ARGENTINA: Salta, Oran Urundal, ii .1944, Monrós leg . (1 SAMC); Las Lajitas , ii .1982, Willi leg . (1 CVMD); Salta, Forest, 35 km from Joaquín Víctor González , 12–14 .ii .1980, Turk-L’ Argentiner leg. (1 IFML).

Diagnosis

Omorgus batesi is the only representative of the subgenus. It is very distinctive and can be easily recognised by the smooth and shiny pronotum and elytra without tubercles or ridges. The elytral intercostae is marked with deep round punctures. For a more detailed treatment of the species, see Vaurie (1962) and Scholtz (1990).

Geographic distribution

This species is widely distributed, yet rarely collected. It has been known so far from Argentina, Paraguay and Brazil, to which we add the first record for Bolivia. From Brazil, it has been recorded across the Amazon (AM, PA, RR), Cerrado (TO, MA), Pantanal (MT, MS) and Atlantic Forest (SP, RJ, ES) biomes ( Figure 8 ).

Figures

Figure 1. Holotype of Trox batesi Harold, 1872 (now Omorgus batesi). A, dorsal view; B, lateral view, C, holotype labels (Photos by A. Mantilleri, copyright MNHN).

Figure 8. Distribution of Omorgus batesi in the Brazilian territory.