Red milkweed beetle 
Red Oak Borer 
Red-brown Longhorn Beetle 
Rhagium sycophanta 
Rhinophthalmus nasutus 
Rhytiphora bankii 
Rhytiphora nigrovirens 
Ribbed Pine Borer 
Robust Oak Borer 
Ropalopus femoratus 
Rosalia longicorn 
Rufous-shouldered Longhorn Beetle 
Rustic Borer 
Sal Borer 
Saperda carcharias 
Saperda cretata 
Saperda obliqua 
Schmidtiana spinicollis 
Seven-spotted longhorn flower beetle 
Six-banded Longhorn Beetle 
Six-spotted Flower Longhorn Beetle 
Slender Flower Longhorn Beetle 
Small Black Longhorn Beetle 
Small Mulberry Borer