from The Century Dictionary and Cyclopedia
- n. An insect which appears when shad are running; a May-fly; a day-fly.
Sorry, no etymologies found.
We met with ephemerae (shad-fly) midway, about a mile from the shore, and they evidently fly over the whole lake.
An insect called the shad-fly also appears at the same time, covering the houses and fences.
The groves are filled with birds of beautiful plumage; the graceful blue bird, the enamelled hummer, and the cardinal, with his hood of the brightest scarlet, are for ever on the wing in pursuit of the shad-fly.
On entering La Prairie, at noon, we found the good people annoyed by a visitation which had not yet reached St. John's, namely, myriads of a winged insect called the shad-fly; these covered and crowded every building, filled the water and the air; they lodged on your clothes, rendered sight difficult, and speaking impracticable, except with closed teeth.