Sand flies is a designation associated with the small insects rendered “lice” in English versions. The precise identification of the Hebrew term is not established in the supplied material.
The term is connected with the insects in the account of the plague of lice in Exodus 8:16, where the margin gives “sand flies.”
The Hebrew word kinnim is also represented in the margin of the Apocryphal book Wisdom. The entry directs comparison with discussions of fleas, gnats, insects, and lice.