Sylvanelater cylindriformis is a species of click beetle in the family Elateridae.
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.