The Amazon EC2 - Delete snapshot Task deletes the specified snapshot. When you make periodic snapshots of a volume, the snapshots are incremental and only the blocks on the device that have been changed since your last snapshot are saved in the new snapshot.
Connection
To use Amazon EC2 Tasks you need to create a Connection first. Click the Settings icon to open the Manage Connections dialog.
Snapshots
The snapshot to be deleted. Click the Refresh icon to populate the drop-down snapshot list.