A new species and a key for the Brazilian species of the genus <i>Heterelmis</i> Sharp, 1882 (Coleoptera: Elmidae, Elminae)

Abstract

Heterelmis Sharp, 1882, comprises 22 species and subspecies with 3 species assigned to Brazil so far. Here the forth species, Heterelmis debilis sp. nov. from Brazil, is described and illustrated. The type material is deposited in the Museum of Zoology of the University of São Paulo, São Paulo, Brazil (MZSP) and Natural History Museum, London, UK (NHMUK). Additionally, an identification key with distributional data for Brazilian species is proposed.

Spanglerelmis, a new genus of Elmidae (Insecta: Coleoptera) from Brazil with new species and biological notes

“…The knowledge of Neotropical Elmidae has increased in recent years with the description of several new species (Polizei & Barclay 2018, 2019a, 2019bLinský et al 2019Linský et al , 2021Polizei et al 2020aPolizei et al , 2020bČiampor et al 2021), and two new genera: Amazonopsis Barr, 2018 from Peru, Venezuela, and French Guiana; and Ictelmis Čiampor, Linský & Čiamporová-Zaťovičová reported from Ecuador. In Brazil, although new species have been regularly described in recent years (Polizei 2018a(Polizei , 2018bAlmeida et al 2020;Polizei et al 2020b;Polizei & Fernandes 2020;Polizei & Hamada 2021), the last genera, Tolmerelmis Hinton, 1972 andTyletelmis (Hinton, 1972), were described approximately 50 years ago.…”

“…Thus, it is highly likely that the richness of species of Elmidae within Brazil has been strongly underestimated. Despite this, knowledge has advanced, including the description of new species and the development of taxonomic keys (Fernandes et al 2011;Fernandes & Hamada 2012;Sampaio et al 2012;Barbosa et al 2013;Ferreira-Jr et al 2014;Passos et al 2015;Polizei 2018aPolizei , 2018bPolizei & Barclay 2018, 2019a, 2019bLinský et al 2019;Almeida et al 2020;Polizei et al 2020aPolizei et al , 2020bPolizei & Fernandes 2020).…”