Dichotomius tristis ( Luederwaldt, 1923 )

Rosa, Cecilia Lozano De La, Cupello, Mario & Vaz-De-Mello, Fernando Z., 2024, The dung beetles of Venezuela (Coleoptera: Scarabaeidae: Scarabaeinae): catalogue and updated distribution, European Journal of Taxonomy 959 (1), pp. 1-272 : 109-111

Dichotomius tristis ( Luederwaldt, 1923)

Fig. 43B

Pinotus tristis Luederwaldt, 1923: 12 (original description). Type locality: Venezuela. Name-bearing type: holotype by monotypy (MZSP), not examined.

Pinotus tristis – Luederwaldt 1929: 98 (list for Brazil). — Blackwelder 1944: 208 (list).

Dichotomius tristis – Roze 1955: 44 (checklist for Venezuela). — Vulcano & Pereira 1967: 585 (key). — Larsen et al. 2008: 1294 (list). — Krajcik 2012: 91 (list). — Giraldo et al. 2018: 66 (guide). — Montoya-Molina & Vaz-de-Mello 2021: 53 (diagnosis, distribution).

Material examined

VENEZUELA ‒ Amazonas • 1 spec.; 150 m a.s.l.; Aug. 2003; CEMT • 1 spec.; Atunes. Puerto Ayacucho ; 112 m a.s.l.; 13 May 2004; D. García-Favre leg.; CEMT . ‒ Aragua • 1 spec.; Cuyagua ; 6 Aug. 2004; D. Garcia leg.; CEMT • 1 spec.; Parque Nacional Henri Pittier, Choroni ; 29 Jul. 1992; Homburg leg.; CEMT . ‒ Barinas • 5 specs; Andrés Eloy Blanco, Reserva Forestal Caparo, Estación Cachicamo ; 07°28′16″ N, 71°03′18″ W; 159 m a.s.l.; 22‒23 Jul. 2014; R. Acconcia and J. Gámez leg.; human faeces; CEMT • 1 spec.; Calderas de Barinas, San Ramón, Finca Valle Encantado ; 08°52′49″ N, 70°29′42″ W; 1249 m; 30 Sep. 2010; R. Acconcia leg.; human faeces; CEMT. ‒ La Guaira • 2 specs; Vargas , La Sabana ; 10°35′52.65″ N, 66°16′48.61″ W; 22 m a.s.l.; 20 Jul. 2009; H. Martínez, P. Cely, M. Córdova and M. Nuñez leg.; chicken carrion; CEMT . ‒ Táchira • 1 ♂, 1 ♀; San Cristobal , Barrio El Lobo; Apr. 1984; Joffre B. leg.; CEMT • 5 specs; San Cristóbal, Parque Nacional Natural Paramillo ; Jul. 1993; J. Blanco leg.; CEMT .

Distribution

Colombia, Venezuela, Trinidad and Tobago, and Brazil.

Subregions of Venezuela

Coastal mainland, Plains, Peneplain of the Casiquiare River –Upper Orinoco, System of hills and low piedmont mountains of the Guiana Shield, Andes mountains, Central Coast Mountain Range, and Oriental Coast Range.

Literature records

Luederwaldt 1923: 12 ( Venezuela); 1929: 98 ( Venezuela). — Blackwelder 1944: 208 ( Venezuela). — Roze 1955: 44 ( Venezuela: Sucre). — Vulcano & Pereira 1967: 585 ( Venezuela). — Larsen et al. 2008: 1294 ( Venezuela: Bolívar: Lago Guri). — Krajcik 2012: 91 ( Venezuela). — Montoya-Molina & Vaz-de-Mello 2021: 8, 50 ( Venezuela: Amazonas, Aragua, Barinas, La Guaira, Táchira and Yaracuy).

Figures

Fig. 43. Species distribution. A. Dichotomius satanas (Harold, 1867). B. Dichotomius tristis (Luederwaldt, 1923). Green diamond = CEMT collection data; black circle = literature data.