The Bent-line Carpet Moth

Geometridae, Larentiinae. Unfortunately it is already too late for me to check all candidates. Quite a tricky subfamily. In my eyes, please, focus on the "empty" white area on the forewing and the distance of the only 1 "spike" from the margin (1/3 of the forewing) and s-like shape of the darker area from the margin to the spike. But do not forget: often a great variability. My first guess would be Xanthocoroini, but I am not 100% sure! http://bugguide.net/node/view/14325/bgpage http://bugguide.net/node/view/14770/bgpage?from=0 Do not forget/check the other tribes!