12844 Mating Butterflies on Yarrow Flower, Trinity Mtns, CA - June, 2007. Early morning sunlight is warming up these butterflies, which have apparently spent the chilly night coupled like this. You can see the orange connecting appendage in the center, which appears to be coming out of the male's rear abdomen. TShasta-Trinity National Forest.

12844 Mating Butterflies on Yarrow Flower, Trinity Mtns, CA - June, 2007. Early morning sunlight is warming up these butterflies, which have apparently spent the chilly night coupled like this. You can see the orange connecting appendage in the center, which appears to be coming out of the male's rear abdomen. TShasta-Trinity National Forest.