Death's Head Hawkmoth. Acherontia atropos - Flickr - gailhampshire

Description:

Newly emerged, squeaking like a mouse. Named from 'skull' marking on head. Unlike other species in the family, the Death's Head has a short proboscis and so cannot obtain nectar from deep, tubular flowers. The moth is known to raid beehives for honey. When in the hive it emanates a squeaking sound that apparently has a calming effect on the bees and so it is not attacked.