Sternidius punctatus is a species of flat-faced longhorn in the family of beetles known as Cerambycidae.
Further reading
Book: Arnett . R.H. Jr.. Thomas . M. C.. Skelley . P. E.. Frank . J. H.. 2002. American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press. 978-0849309540.
Klingeman . William E.. Youssef . Nadeer N.. Oliver . Jason B.. Basham . Joshua P.. 2017. The longhorned beetles (Coleoptera: Cerambycidae) of Tennessee: distribution of species, seasonal adult activity, and new state records. Florida Entomologist. 100. 2. 292–302. 10.1653/024.100.0226. free.