i have lived out doors in Indiana all me life and i am just now seeing these bugs around here this year.
Leaffooted bug nymph, Acanthocephala sp. by: Moni
April
I would agree with Korat, that it is a leaffooted bug nymph, but I can not put species on it without a better photo or seeing the adult.
The leaffooted bugs are true bugs in the family Coreidae. Both the nymphs and adults suck plant juices. Also when touched you will get a bad scent on your hands. Not sure why it turned colors for you.
Some of the coloration may be to mimic wasps.
Looks like... by: Korat
This little guy reminds me of a Leaf-legged Bug - Acanthocephala terminalis.
