  Tip-streaming generates micron- and submicron- sized droplets when a thin
thread pulled from the pointy end of a drop disintegrates. Here, we report
streaming from the equator of a drop placed in a uniform electric field. The
instability generates concentric fluid rings encircling the drop, which break
up to form an array of microdroplets in the equatorial plane. We show that the
streaming results from an interfacial instability at the stagnation line of the
electrohydrodynamic flow, which creates a sharp rim. The flow draws from the
rim a thin sheet which destabilizes and sheds fluid cylinders. This streaming
phenomenon provides a new route for generating monodisperse microemulsions.
