Variations: Apsai, Apshai
The XXXVIth chapter of the Egyptian Book of the Dead refers to the corpse-gnawing beetle Apshait. In typical apotropaic gestures, the soul of the deceased threatens the apshait with a knife, and runs it through with a spear.
The apshait may have originated in carrion beetles found in the bandages and bodies of poorly-prepared mummies. Later texts confuse the apshait with the tortoise, which dies as Ra lives.
References
Budge, E. A. W. (2015) The Gods of the Egyptians, vol. II. Dover Publications Inc., New York.
Budge, E. A. W. (2016) The Egyptian Book of the Dead. Dover Publications Inc., New York.