Both you and the dictionary are 100% correct. If you use your sentence with "doesn't" , it creates more emphasis and emotion, so it gives it a feeling of complaining or anger instead of just asking a question.

Here are some more examples to help you understand when you use "not" and when "doesn't" on their own in the second part of a sentence: ", but not..." --> the same subject in both clauses I've been to Ukraine, but not to Belarus. (Subject: I) He shared his lunch, but not his dessert. (Subject: he) It works here, but not there. (Subject: it) ", but ... doesn't" --> the "but"-clause has a different subject My MasterCard works in this ATM, but my Visa doesn't. (Subjects: MC vs. Visa) Americans drive on the right hand-side, but Australians don't. (Subjects: Americans vs. Australians) Consider these two examples: 1) She likes fish, but not seafood. (=she doesn't like seafood) 2) She likes fish, but her husband doesn't. (=her husband doesn't like seafood) Hope that helped!

It is absolutely correct. I don't have an official, linguistic explanation for the ability to drop the verb in the second part, but it certainly doesn't sound strange to me. Other examples: Peter speaks fluenty in Polish but not in Hungarian. Why do you object to that candidate but not the other?

Hi Siarhei, yes, the dictionary example is correct. We've put the "does" at the beginning of the sentence to provide the question form. We can't replace "not" with "doesn't".