How can i create a new usb connection (service) on my iMac for sharing internet from my iPhone5 ( i seem have to deleted it )

How can i create a new usb connection (service) on my iMac for sharing internet from my iPhone5 ( i seem have to deleted it )

i know its not a problem whit my carrier o data plan or sharing preferences on the ipone because when i use it un my laptop it works perfectly through

the usb and even works on the Imac through wifi and bluethood tethering but NOT through usb!!.

the problem is that trying to make it work i deleted the "profile" usb iphone on the network prefereces panel. Now i only have 3 options: ethernet / wifi / bluetooth

but not the usb iPhone i used to have.

And when i try to add a new one i dont get a USB option.

can some one help me please??

this is how it looks (after the bluetooth PAN i used to have USB iPhone option)