The complexity of this insect's behavior or of any other is profoundly complicated. As well, Metamorphosis is a highly organized event with the turning on and off of enzymes to produce the necessary components of each stage of change. These are precisely organized and not a haphazard events. It is reasonable to accept this as evidence for a Creator.
Genesis 1:24 And God said, Let the earth bring forth the living creature after his kind, cattle, and creeping thing, and beast of the earth after his kind: and it was so.
25 And God made the beast of the earth after his kind, and cattle after their kind, and every thing that creepeth upon the earth after his kind: and God saw that it was good.
(pix by jgl in New Mexico and artwork of metamorphosis done 1914 and is public domain)