Contributions to the taxonomy of Habronychus s. str. (Coleoptera, Cantharidae): nine new species and an updated worldwide key to the subgenus

Nine new species of Habronychus (Habronychus) Wittmer, 1981 are described, viz. H. (H.) divergens sp. nov ., H. (H.) nigricollis sp. nov ., H. (H.) taizhouensis sp. nov ., H. (H.) profundifissus sp. nov ., H. (H.) laticornis sp. nov ., H. (H.) nigripennis sp. nov ., H. (H.) bilineatus sp. nov ., H. (H.) rufolineatus sp. nov ., and H. (H.) hainanensis sp. nov . Habronychus (H.) szechwanus Wittmer, 1988 is redescribed. The habitus, aedeagus, female abdominal sternite VIII, and internal genitalia of these species are illustrated. A worldwide key to the subgenus is updated.