New records for the Peruvian high-altitude diving beetle Rhantus blancasi Guignot, 1955 (Coleoptera, Dytiscidae, Colymbetinae)

Abstract

The diving beetle Rhantus blancasi Guignot, 1955 (Coleoptera, Dytiscidae, Colymbetinae) was until now only known from older reports from Pasco region, Peru. Here, we provide new distributional data from Cuzco and Junin regions, habitat information, and illustrations of diagnostic characters for the easy identification of the species.

A new Colombian species of Liodessus diving beetles from the Páramo de Sumapaz (Coleoptera, Dytiscidae, Bidessini)

“…However, diving beetles from the high altitudes of the Puna and Páramo regions re main poorly studied. Since 2019, as the result of a research and training cooperation between our institutions, 10 new species were described from these regions of Peru (Balke et al 2019(Balke et al , 2020b and Colombia (Megna et al 2019;Balke et al 2021). It became apparent that many more new species of Liodessus remain to be discovered in the vast Andean highland ecosystems, most of them likely en demic to one or a few Páramo or Puna areas, respective ly.…”