Scaled version of convolution

Question

I found that

$$ \int f(t + x) g(x) dx = f \ast g^{-} (t), $$

where $g^{-}(x) = g(-x)$.

My question is that following integral

$$ \int f(t + \lambda x) g(x) dx, ~~~ \lambda \in (0, 1) $$

can be expressed in terms of convolution.

Thanks in advance.