I found this insect in Utah, USA. What is it?
It looks very much like the Indian meal moth, Plodia interpunctella, to me. The size, morphology of the antenna and wing tips, and the pale band of scales are all fairly distinctive. (The proboscis isn't very clear in the photo below but it is in most other images you could find via Google; I just couldn't find a better one with a license allowing me to post it here.)


(Image by Kaldari (Own work) [Public domain], via Wikimedia Commons; URL https://upload.wikimedia.org/wikipedia/commons/5/50/Indianmeal_moth_2009.jpg)