this is a floating display of a common Sphinx Moth! The plants are Hemlock & small perennial flowers. The case measures 6”x6”
Sphinx moth info:
The Sphingidae are a family of moths called sphinx moths, also colloquially known as hawk moths, with many of their caterpillars known as “hornworms”; it includes about 1,450 species. It is best represented in the tropics, but species are found in every region