I am definitely not a fan of the Japanese beetle (Popillia japonica), a native of (unsurprisingly) Japan, and instroduced into North America in the early 20th century (first found in the United States in 1916 near Riverton, New Jersey). They are quite destructive of a wide variety of plants, including both ornamental plants (like roses, which they love) and agricultural crops (soybeans, stone fruits, etc.). Their larvae damage lawns, feeding on the roots of grasses. They are, of course, pretty if you can disassociate them from the destruction they cause. But that’s hard for me to do and I don’t really have a lot of sympathy for them. This one is on a rose of Sharon (a.k.a. shrub althea, Hibiscus syriacus).