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We give a combinatorial description of the rational cohomology of the modulispaces of pointed genus 1 curves with $n$ marked points and level $N$structures. More precisely, we explicitly describe the $E_2$ term of the Lerayspectral sequence of the forgetful mapping$\EuScript{M}_{1,n}(N)\to\EuScript{M}_{1,1}(N)$ and show that the result isisomorphic to the rational cohomology of $\EuScript{M}_{1,n}(N)$ as a rationalmixed Hodge structure equipped with an action of the symmetric group$\mathfrak{S}_n$. The classical moduli space $\EuScript{M}_{1,n}$ is theparticular case N=1.

Rational cohomology of the moduli spaces of pointed genus 1 curves