Skittles

I love the interspecies variation you can see in this huddle of shieldbugs, I dont know if these are adults or still have some growing left to do but I think its awesome that they all have a different pattern. I dont know what causes this, whether its polymorphism or some other factor(s)?

 

EDIT: I think I figured out the species... Spotted Shield Bug (Pachycoris torridus)

Done