I do not know the name of it but I do know that it is a basic type of Nepenthes sorry!

You had that one for 4 years? Why is it making such a tiny trap? It should be making decent size urns by now. And the leaves looks kinds curled like as if not receiving enough water. Growing it in the wrong soil will also cause it to curl like that.

Now I have to ask: What kind of soil are you growing it? What do you water it? How much light does it get?

For now it's hard to say what it is.

Again 1 peat 2 perlite 1 sand

bugeater check for spidermites. The curling and white spots are typical signs of mites. Get the highest quality picture you can with your camera and magnify with pic and fax viewer or use a loupe or coddington to view the plant. Check under the leaves.

The mixture one part of each of perlite, peat moss, & sand is good for most carnivorous plants. But for nepenthes it require a different mix, usually the true & tried half part long fiber sphagnum moss & perlite. Nepenthes like to grow in a media with good drainage & airy, but still hold moisture.

How much do you water it? Also, how much light do you provide it?

hk his mix is fine. It is fast draining and airy and still holds moisture. I use the mix for many plants and not just carnivors.
Light could be an issue but I think he has a pest.

I know a hobbyist that "swears by" adding pine needles to the Nep mix and has done a comparison study of with and without it. She concluded that the pine needles produces plants that grow better and are more disease resistant.