I have to admit, this is one of my favorites so far!
Beetles come in so many shapes, sizes and colors. But some of the most beautiful ones I remember seeing in my own yard in the summer were these gorgeous iridescent bluish-green ones. They like to hang out in the woods, on the ground, along paths or near the water.
I've illustrated this Tiger Beetle on a fallen oak leaf, lit up by the sun. I thought the orangey-browns and yellows of the leaf was a good color to really make this bright beetle pop! And when you see these guys in real life, they really do like to be on leaves!
Here are a couple of websites if you'd like to see or learn more about them:
Click here for some gorgeous results from Flickr!