1922  (1924)  In front of me danced the vague shadow of Harry and the dim light thrown before him by the "bug."
1950  There was a hasty search for flashlights and "bugs," which were simply tin cans with a hole in the side through which a candle protruded. . . .
1963  In place of flashlights, they made [in the Yukon] what they called bugs out of empty . . . syrup cans.