My apologies but details are a little fuzzy, I read it when I was in fourth or fifth grade and I'm 21 now, so around 2007 to 2009. The cover had an illustration of the boy.
From what I remember, it was about this boy whose parents were scientists and were on a spaceship on its way to a different planet. The boy was born and raised in the space ship and when they finally landed he somehow met a race of bug-like aliens. He befriended them and had to do his best keeping them a secret from the adults he grew up surrounded by.