Eastern Hemlock Looper (Lambdina fiscellaria) (resting by a porch light in Stetson, Maine; 9/15/2019) The Hemlock Looper, Lambdina fiscellaria (Guenée), is a native North American moth belonging to the family Geometridae, the second largest family in the order Lepidoptera.  The family accounts for many serious agricultural and forest pests, the hemlock