why do insects lay eggs under leaves?

Question: why do insects lay eggs under leaves?
- Keywords:
  egg,
  insect,
  reproduction
Asked by fm to Ryan on 24 Jun 2015.
- Ryan Cheale answered on 24 Jun 2015:
  
  I would guess that it’s kind of warm under there, think of a leaf like a blanket. Eggs require warmth to grow and hatch!
  
  Can you think of places other animals put their eggs?

Question: why do insects lay eggs under leaves?