Dichotomius Hope, 1838

Carvalho, Edrielly C., Maldaner, Maria Eduarda, Costa-Silva, Vinicius, Sehn, Heivanice, Franquini, Carol, Campos, Vinicius O., Seba, Vinicius P., Maia, Lais F., Vaz-de-Mello, Fernando Z. & Franca, Filipe Machado, 2023, Dung beetles from two sustainable-use protected forests in the Brazilian Amazon, Biodiversity Data Journal 11, pp. 96101-96101 : 96101

Dichotomius Hope, 1838

Notes

According to the most recent taxonomic revision from one of the subgenera of Dichotomius , this Neotropical genus comprises around 190 species widely distributed from the USA to Argentina ( Nunes and Vaz-de-Mello 2019). The four subgenera are either being revised or were recently revised ( Nunes et al. 2016, Valois et al. 2017, Maldaner et al. 2018, Nunes and Vaz-de-Mello 2019). Dichotomius species occur in all Brazilian biomes and can be collected in pastures, savannahs or forests. The genus as a whole is considered paracoprid - i.e. tunnellers ( Nunes and Vaz-de-Mello 2019). For the identification of the species, the following works were mainly used: Nunes et al. (2016), Valois et al. (2017), Maldaner et al. (2018), Nunes and Vaz-de-Mello (2019). We collected nine species: Dichotomius aff. batesi , D. aff. lucasi 1, D. aff. lucasi 2, D. cuprinus (Felshe, 1901), D. mamillatus (Felshe, 1901), D. melzeri (Luederwaldt, 1922), D. nisus (Olivier, 1789), D. pelamon (Harold, 1869) and D. worontzowi (Pereira, 1942) (Fig. 3 H-N).

Figures

Figure 3. Dorsal habitus of dung beetle species collected in the Tapajos National Forest and / or Carajas National Forest. A Coprophanaeus degallieri Arnaud, 1997; B Coprophanaeus jasius (Olivier, 1789); C Coprophanaeus lancifer (Linnaeus, 1767); D Cryptocanthon campbellorum Howden, 1973; E Deltochilum anceladus Kolbe, 1893; F Deltochilum orbiculare Lansberge, 1874; G Deltochilum orbignyi amazonicum Bates, 1887; H Dichotomius cuprinus (Felsche, 1901); I Dichotomius mamillatus (Felsche, 1901); J Dichotomius melzeri (Luederwaldt, 1922); L Dichotomius nisus (Olivier, 1789); M Dichotomius pelamon (Harold, 1869); N Dichotomius worontzowi (Pereira, 1942); O Eurysternus arnaudi Genier, 2009; P Eurysternus atrosericus Genier, 2009; Q Eurysternus balachowski Halffter & Halffter, 1977. Scale bar: 1 mm.