1795 Epirrita dilutata (November Moth)

Geometridae, Larentiinae - Wingspan: 30-40mm.

One of a few common species which can cause problems in identification due to the similarity and variability of all members. Certain wing features are claimed to be usable at times, but nothing is clear. Without genitalia verification, they are all often included as an "aggregate" of species, where the ID is uncertain. This specimen is a representative of the problem, which may be the above ID. Populations seem to have single species in locations, so once one is identified, it is reasonable to assume that other individuals in the same area are the same, however there is no complete certainty.

The flight season for the November Moth appears to be October and November, peaking in November. Some specimens may be seen after this, and occasionally into January.