Porch Light Moths (1): While it is not 100% understood why moths are attracted to lights, for those of us who appreciate their beauty, it’s an easy way to attract and observe them. At first glance, these two moths (in the family Noctuidae) might appear similar …but take a look at the subtle, but intricate, patterns and differences in appearance and you quickly see you are looking at 2 different species. Photo 1: Pale Enargia (Enargia decolor) — these moths fly from July to September. The larvae feed on the leaves of poplar and aspen. Photo by Glenn Marangelo on 8/30/17 in Missoula, MT.