From what I understand, and see, the newer packages DO NOT come with an adapter. Adapters by themselves are hard to find, cost $9.99 from Sony plus shipping. The older packages DID come with adapter in the price, but they package that way now. If it doesn't specify it comes with an adapter, it won't. Having problem with this currently with one I bought from a group that sells on Amazon - worldwide.
I just got mine today and it does not include the adapter. I was expecting the adapter as well since the items tech details/description does state: Can also be used in products compatible with standard-size Memory Stick PRO media (using supplied adaptor)
Yeah, it would have been nice to know when I bought this. I just went to put my pics on my computer and found out it didn't fit. I didn't even know it would need an adapter or I would have look for the description to mention that. Oh well, live and learn.