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Recently we discovered beetles belonging to the extinct tribe Notocupedini (Coleoptera: Cupedidae: Ommatinae) from the Sinuiju Formation near Paektho-dong, Sinuiju City, North Phyongan Province.
Hierarchal classification of this beetle is as follows.
Class: INSECTA Linnaeus, 1758
Order: COLEOPTERA Linnaeus, 1758
Suborder: CUPEDINA Laporte, 1836
Family: CUPEDIDAE Laporte, 1836
Subfamily: OMMATINAE Sharp and Muir, 1912
Tribe: NOTOCUPEDINI Ponomarenko, 1966
Genus: Zygadenia Handlirsch, 1906
Type species: Curculionites tuberculatus Giebel, 1856
Species: Zygadenia liui Jarzembowski, Wang, Zhang et Fang, 2015
We published this result in the journal "Cretaceous Research" (2020) under the title of " First record of a beetle (Coleoptera: Cupedidae) from the Lower Cretaceous of the Democratic People's Republic of Korea " (https://doi.org/10.1016/j.cretres.2019.104276).