Dogface in the Greenhouse

When I first noticed Colias cesonia, the Dogface Sulphur, he kept going to a bag of potting soil. I thought maybe he was gleaning minerals off the dust.

When I went back with a camera, he was on the damp floor where moisture collected after I turned on the fogger to raise the humidity which was down to 30%.

I faced toward the sun to make the center pic so you can see the outline of the dark edges of the wing. The dog face is not clearly discernable through the folded wing. Getting a picture of a Sulphur with open wings is difficult, almost impossible for me.

Colias cesonia