What is "warbeetle"

Warble \War"ble\, n. [Cf. Wormil.]

1. (Far.)

   1. A small, hard tumor which is produced on the back of a horse by the heat or pressure of the saddle in traveling.

   2. A small tumor produced by the larv[ae] of the gadfly in the backs of horses, cattle, etc. Called also warblet, warbeetle, warnles.

2. (Zo["o]l.) See Wormil.