Stenopterus rufus is a beetle species of round-necked longhorns belonging to the family Cerambycidae, subfamily Cerambycinae.

Subspecies and varietas include:[1] Stenopterus rufus can reach a length of 7–16 millimetres (0.28–0.63 in).

Larvae are polyphagous wood borers in dead branches of deciduous trees (Quercus, Castanea, Robinia, Juglans, Prunus, Salix, Pistacia, Corylus avellana, Ostrya carpinifolia, Paliurus spina-christi etc.).

They are very common flower-visitors, especially Apiaceae species, Heracleum sphondylium and Ranunculus repens, feeding on pollen and the nectar.

[3] This beetle is widespread in most of Europe, in Caucasus, Transcaucasia, Iran and in the Near East (Albania, Armenia, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Corsica, Croatia, Czech Republic, France, Germany, Greece, Hungary, Iran, Israel, Italy, Jordan, Luxembourg, Malta, Moldova, Poland, Romania, Russia, Sardinia, Serbia, Sicily, Slovakia, Slovenia, Spain, Switzerland, Syria, Turkey, Turkmenistan, Ukraine).