†Serrulus Hong 1983 (scarab beetle)
Full reference: Y. Hong. 1983. Fossil insects in diatomaceous materials of Shanwang. Bulletin Tianjin Institute 8:1-15
Parent taxon: Scarabaeoidea according to Y Hong 1983
Sister taxa: Acanthoceridae, Aliscarabaeus, Belohinidae, Diphyllostomatidae, Glaphyridae, Glaresidae, Hybosoridae, Hybosorites, Lucanidae, Obitiscarabaeus, Ochodaeidae, Passalidae, Pleocomidae, Scarabaeidae, Septiventeridae, Trogidae
Subtaxa: none
Ecology: