Macronychus

Macronychus is a genus of riffle beetles in the family Elmidae. There are about 11 described species in Macronychus.

Species
These 11 species belong to the genus Macronychus:
 * Macronychus glabratus Say, 1825
 * Macronychus indicus Hinton, 1940
 * Macronychus jaechi Ciampor & Kodada, 1998
 * Macronychus jendeki Ciampor & Kodada, 1998
 * Macronychus kubani Ciampor & Kodada, 1998
 * Macronychus levanidovae Lafer, 1980
 * Macronychus quadrituberculatus Müller, 1806
 * Macronychus reticulatus Ciampor & Kodada, 1998
 * Macronychus sulcatus Ciampor & Kodada, 1998
 * Macronychus ultimus Ciampor & Kodada, 1998
 * Macronychus vietnamensis Delève, 1968