In C#, what does "()=>" mean?

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C#

A C# source code file I am hoping to use in a project of my own has an array definition that begins with the following code:

<br />
stf.ParseBlock(new STFReader.TokenProcessor[] {<br />
    new STFReader.TokenProcessor("eventtypelocation", ()=>{ stf.SkipBlock();  }),<br />

What does the "()=>" mean? I've never seen that construct before.

Thanks very much!

RobR