backyard bugs · insects · Nature Academy of the Berkshires · winter

Put on Your Winter Coat

It was late November, during the wet snow storm when I spied this moth on the trunk of a tree by the lake. Luckily it was wearing a winter coat. It is a noctuid moth, I believe, belonging in the family “Papaipema” that is only found in North America.

After doing a little research it appears that this is a cold weather moth, not usually snow on the ground cold like it was on this day, but late fall cold. The caterpillar is rarely seen because it bores into roots, rhizomes, and stems of herbaceous plants and stays there all summer. The moth appears late in the season when we are not expecting to see many moths or insects. These hardy leps, then lay their eggs in the fall with the caterpillars hatching in the spring, boring into their food plant and starting the cycle all over again.

We get an added treat in this picture to see the lichen on the tree photosynthesizing in the vapors of the damp snow.