Mystery Bugs

Several days ago I found these green eggs on my car. I kept them and two of the critters hatched, however, I can't tell what they are. They are green with six legs and two antenae. I am gonna take pics tomorow when I let them go, I figure the others should be hatched by then. I am working on math home work right now, and I am gonna head to bed after I finish this section. Night every one!