Bug from Africa is a "Sphaerocoris annulus", also known as Picasso Shield Bug.
Dicronocephalus wallichi Hope. Beautiful! Thanks @Elsi elizabeth mason !
Miscellaneous Beetles - White Dotted Beetle by Emanuel Toffolo / Glass / ガラス工芸
Rosalia alpina - The Rosalia longicorn is a large longicorn that is distinguished by its distinctive markings. It is in the Beetle family.
Chrysina karshi (Guatemala)
Cyclommatus elephus - a long horned beetle in the family Lucanidae.
Stag beetle, Lucanus cervus. Sizes vary, the male ranges between 40 and 70 mm