| Kingdom: Animalia | 
| Phylum: Arthropoda | 
| Subphylum: Hexapoda | 
| Class: Insecta | 
| Infraclass: Neoptera | 
| Subclass: Pterygota | 
| Order: Coleoptera | 
| Suborder: Polyphaga | 
| Infraorder: Cucujiformia | 
| Superfamily: Curculionoidea | 
| Family: Curculionidae | 
| Subfamily: Scolytinae | 
| Tribe: Scolytini: Xyleborina | 
| Genus: Xyleborus | 
| Subject: Xyleborus sayi (Hopkins, 1915) |