Identification pitfalls (part 2)

The second installment of this regular feature (click here for part 1) includes a moth that won't be seen until the summer but, given the trickiness of the identification challenge, I thought I'd bring it up now. First off, you can tell it is a moth because it has six legs, most birds have two. However, quite how you discriminate the pretty little critter from the spherical glass object (shown here on the left) is beyond me.