It is an important taxonomic work about the genus Niphadonyx (Curculionidae Molytinae) by prof. Massimo Meregalli of the University of Torino. The work includes the review of the genus based on differential diagnostic characters which are discussed with respect to the most closely related genera. The work includes descriptions of 43 new species from the Himalayan Massif and North-West China, with habitus photographs of all species and pictures of relevant morphological characters. All collecting localities are georeferenced and detailed distribution maps are provided.