Dichotomius boreus (Olivier, 1789)

Cárdenas-Bautista, Johann Stephens, Parada-Alfonso, Jenny Andrea & Carvajal‑Cogollo, Juan E., 2020, Dung beetles (Scarabaeidae, Scarabaeinae) of the Foothills-Andean Forest strip of Villavicencio, Colombia, Check List 16 (4), pp. 821-839 : 830

Dichotomius boreus (Olivier, 1789)

Materials examined. COLOMBIA • 1, 27.91 mm (mean); Meta, Villavicencio, Vereda El Carmen, “La Loma” Farm ; 04°08′26.69″N, 073°40′01.28″W; 730 m a.s.l.; 17 Oct. 2018; Cárdenas Johann and Parada Jenny leg.; wooded pasture; Crpat3; UPTC-In-00050 . • 3, 27.91 mm (mean); Meta, Villavicencio, Vereda El Carmen, Caño Blanco–Caño Buque ; 04°08′21.08″N, 073°40′08.76″W; 761 m a.s.l.; 30 Apr. 2019; Cárdenas Johann and Parada Jenny leg.; riparian forest; Crbrt5; UPTC-In-00051 .

Identification. This species can be distinguished from other Dichotomius species by the head with transverse clypeal carina with or without lateral teeth and trituberculate vertex carina; pronotum with central protuberances in the form of almost square tubercles from which two small projections of the same size are projected on each ( Sarmiento-Garcés and Amat-García 2014).

Distribution. In Colombia it is distributed in the departments of Guaviare, Meta and Vichada ( Medina and Pulido 2009; Sarmiento-Garcés and Amat-García 2014). In the study area, it was recorded at 750 m a.s.l., higher than the one reported by Medina and Pulido (2009) and Sarmiento-Garcés and Amat-García (2014). Nine individuals were recorded, categorizing it as a rare species, in wooded pastures, secondary high forest and riparian forest cover.