Dichotomius compresicollis (Luederwaldt, 1929)
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https://doi.org/ 10.15560/16.4.821 |
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https://treatment.plazi.org/id/03F2DE0C-A93C-C026-FCDE-36B9FAEEE36F |
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Marcus |
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Dichotomius compresicollis (Luederwaldt, 1929) |
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Dichotomius compresicollis (Luederwaldt, 1929)
Materials examined. COLOMBIA • 1♂, 12.59 mm (mean); Meta, Villavicencio, Vereda Buenavista, “ El Porvenir Farm ; 04°08′41.09″N, 073°40′46.38″W; 1172 m a.s.l.; 24 Dec. 2018; Cárdenas Johann and Parada Jenny leg.; high secondary forest; Bvbt 2; UPTC-In-00052 GoogleMaps . • 1♀, 12.59 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; Crbrt 5; UPTC-In-00053 GoogleMaps .
Identification. This species can be distinguished from other Dichotomius species by the clypeus and gena with transverse roughness; the front edge of the head is triangular and margined; transverse carina at the base of the eyes; smooth pronotum and in some specimens with some punctation. In males there are small triangular tubercles towards the posterior angles of the pronotum and in females the tubercles are absent ( Sarmiento-Garcés and Amat-García 2014).
Distribution. This species is distributed in the departments of Cundinamarca and Meta; between 200–1200 m a.s.l. ( Medina et al. 2001), restricted to 200 m in the Colombian Orinoco region ( Medina and Pulido 2009), although in the study area it was found between 700–1100 m a.s.l. It is a rare species represented in the sample by 17 individuals (scarce in museums and rare in field collec- tions) but which were found representing all the habitats available with forest cover for the study: high secondary forest (nine individuals), riparian forest (three individuals) and wooded grassland (five individuals).
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