This is a list of species in the genus Smicronyx.
Smicronyx species
Smicronyx abnormis Dietz, 1894
Smicronyx albidosquamosus Klima, 1934
Smicronyx albonotatus Anderson, 1962
Smicronyx amoenus (Say, 1831) Smicronyx apionides Casey, 1892 Smicronyx atratus Dietz, 1894 Smicronyx californicus Dietz, 1894 Smicronyx centralis (Dietz, 1894) Smicronyx cinereus (Motschulsky, 1845) Smicronyx commixtus Dietz, 1894 Smicronyx compar (Dietz, 1894) Smicronyx congestus Casey, 1892 Smicronyx constrictus (Say, 1824) Smicronyx convexus Anderson, 1962 Smicronyx corniculatus (Fahraeus, 1843) Smicronyx corpulentus LeConte, 1876 Smicronyx cuscutiflorae Pierce, 1939 Smicronyx defricans Casey, 1892 Smicronyx discoideus (LeConte, 1876) Smicronyx fiducialis Casey, 1892 Smicronyx flavicans LeConte, 1876 Smicronyx floridanus (Dietz, 1894) Smicronyx fraterculus Dietz, 1894 Smicronyx fulvus LeConte, 1876 (red sunflower seed weevil) Smicronyx griseus LeConte, 1876 Smicronyx halophilus Blatchley, 1920 Smicronyx humilis (Dietz, 1894) Smicronyx imbricatus Casey, 1892 Smicronyx immaculatus Anderson, 1962 Smicronyx incertus (Dietz, 1894) Smicronyx instabilis Casey, 1892 Smicronyx interruptus Blatchley, 1916 Smicronyx intricatus Casey, 1892 Smicronyx languidulus Dietz, 1894 Smicronyx lepidus Dietz, 1894 Smicronyx lineolatus Casey, 1892 Smicronyx lutulentus Dietz, 1894 Smicronyx madaranus Kono, 1930 Smicronyx mucidus Dietz, 1894 Smicronyx obscurus Anderson, 1962 Smicronyx obtectus LeConte, 1876 Smicronyx ovipennis LeConte, 1876 Smicronyx pacificus Anderson, 1962 Smicronyx pallidus Anderson, 1962 Smicronyx perfidus Dietz, 1894 Smicronyx perpusillus Casey, 1892 Smicronyx pinguis Blatchley, 1916 Smicronyx pleuralis Casey, 1892 Smicronyx porrectus (Boheman, 1843) Smicronyx posticus Dietz, 1894 Smicronyx profusus Casey, 1892 Smicronyx pusillus Dietz, 1894 Smicronyx pusio LeConte, 1876 Smicronyx quadrifer Casey, 1892 (white dodder weevil) Smicronyx rectirostris Blatchley, 1922 Smicronyx resplendens Dietz, 1894 Smicronyx rhodopus Dietz, 1894 Smicronyx scapalis (LeConte, 1876) Smicronyx sculpticollis Casey, 1892 (dodder gall weevil) Smicronyx seriatus LeConte, 1876 Smicronyx silaceus Casey, 1892 Smicronyx sordidus LeConte, 1876 (gray sunflower seed weevil) Smicronyx sparsus Casey, 1892 Smicronyx spretus Dietz, 1894 Smicronyx squalidus Casey, 1892 Smicronyx tardus Dietz, 1894 Smicronyx tesselatus Dietz, 1894 Smicronyx triangularis (Dietz, 1894) Smicronyx tychoides LeConte, 1876 Smicronyx utilis Buchanan, 1941 Smicronyx vestitus LeConte, 1876