The oriental beetle (semadara-kogane) is a serious invasive pest species in the United States. It’s absent from the EU, but is on the A1 List of pests kept by the EPPO (European and Mediterranean Plant Protection Organization). Here’s a link to the EPPO data sheet on this species (pdf file).
[syn. Anomala orientalis]
oriental beetle = semadara-kogane
Location: Edge of a field near Genkai New Town (google map)