After I posted the message about digital photographs and IDs, I realized that I had erred because no one other than a dedicated moth-er would know what the genus Hydriomena is. The scientific grouping is Geometridae: Larentiinae: Hydriomenini: Hydriomena. The individuals that I see in Carroll County, VA are an inch or nearly an inch in total length. They have good camouflage for sitting on bark and they vary in color and pattern both between species and within species. The variations overlap, making photographic identification of species impossible. Here is a selection of Hydriomena images from 2011 through 2013, taken in March, April, and early May.