Two new species of Liodessus Guignot, 1939 diving beetles from Northern Peru (Coleoptera, Dytiscidae, Hydroporinae)

Two new species of Liodessus Guignot, 1939 diving beetles from Northern Peru (Coleoptera, Dytiscidae, Hydroporinae)

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The diving beetles Liodessus altoperuensis sp.nov.and Liodessus caxamarca sp.

nov.(Dytiscidae, Hydroporinae, Bidessini) microtech 184-10 are described from the high altitudes of the Puna regions of north western Peru.They occur in shallow and exposed mossy peatland puddles.

We delineate the two species using structures such as male genitalia, beetle size, shape and colour pattern.Mitochondrial Cox1 data were also generated, and revealed clusters congruent with morphological evidence.Altogether fourteen Liodessus species are now hammont clear acrylic boxes known from the Andean region.