Although the Mesozoic Era played an important role in the evolution and diversification of Elateridae, the Cretaceous click-beetle fauna remains very poorly known. Here we describe Cretopachyderes burmitinus gen. et sp. nov. based on a single specimen from the mid-Cretaceous Burmese amber. This species is remarkable for its extremely long posterior angles of pronotum, which is a unique character among fossil Elateridae. We discuss the diagnostic characters of Cretopachyderes gen. nov. and tentatively place it to subfamily Agrypninae close to extant genus Pachyderes Guérin-Méneville, 1829.
