Konchuu Monogatari Mitsubachi Hutch: Yuuki no Melody

Hutch, the young prince of a honeybee kingdom, is separated from his mother when hornets attack their home. Believing she is still alive, he sets off alone to find her and eventually wanders into Sepia Town, a human settlement where the local insects are struggling with dangers of their own.

There Hutch meets Amy, a lonely girl who can understand the language of insects. Her kindness and harmonica give him the first real companionship of his journey, and together with new insect friends they continue the search for Hutch's mother while another hornet threat draws ever closer.