Click here to learn more!
Easton's Bible Dictionary
Heb. 'arob, the name given to the insects sent as a plague on the land of Egypt (Exodus 8:21-31; Psalm 78:45; 105:31 ). The LXX. render this by a word which means the "dog-fly," the cynomuia. The Jewish commentators regarded the Hebrew word here as connected with the word 'Arab , Which means "mingled;" and they accordingly supposed the plague to consist of a mixed multitude of animals, beasts, reptiles, and insects. But there is no doubt that "the 'Arab " denotes a single definite species. Some interpreters regard it as the Blatta orientalis, the cockroach, a species of beetle. These insects "inflict very painful bites with their jaws; gnaw and destroy clothes, household furniture, leather, and articles of every kind, and either consume or render unavailable all eatables."
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain.
Easton, Matthew George. Entry for 'Fly'. Easton's Bible Dictionary. https://www.studylight.org/dictionaries/eng/ebd/f/fly.html. 1897.