Resumen

The Elateridae fauna of Peru is updated with species new to science, new country records and new taxonomic combinations from the Madre de Dios region. Ten species representing eight genera are described as new: Conoderus wachiperi new species(Agrypninae, Oophorini) Cosmesus acanew species (Elaterinae, Pomachilini), Dipropus amarakaeri new species andDipropus losamigos new species (Elaterinae, Ampedini, Dicrepidiina), Esthesopusmachiguenganew species (Cardiophorinae), Glyphonyx peruanusnew species (Elaterinae, Adrastini), Lissomus carmennew species (Lissominae), Paradonus kosnipata new species (Negastriinae),andPomachilius qusqu new species andPomachilius wayqecha new species (Elaterinae, Pomachilini). Aeolus platynotus Candèze is changed to Conoderus platynotus (Candèze) new combination and Aeolus ticuna Johnson is changed to Conoderus ticuna (Johnson) new combination (Agrypninae, Oophorini); and Crigmus brunnipilis (Candèze) is changed to Probothrium brunnipilis (Candèze) new combination (Elaterinae, Elaterini). Twenty-seven (27) species, the genera GlyphonyxCandèze and Paradonus Stibick, the tribe Adrastini, and the subfamily Negastriinae are added to the Peru faunal list. There are now 201 species representing 48 genera and 9 subfamilies recorded from Peru