Christ Jesus Created Flies!

I recently happened upon the following quote, which you may find interesting:
St. Augustine . . . tells a story of a certain man that was of an opinion that the devil made the fly, and not God. Said Augustine to the man, "If the devil made flies, then the devil made worms, and God did not make them, for they are living creatures as well as flies." "True," said the man, "the devil did make worms." But, Augustine said to him, "if the devil did make worms, then he made birds, beasts, and man. He granted all." Thus, said Augustine—by denying God in the fly, the man came to deny God in man, and to deny the whole creation.
From Precious Remedies Against Satan's Devices by Thomas Brooks