About Ethmia zelleriella Chambers, 1878
Ethmia zelleriella, commonly known as Zeller's ethmia moth, is a species of moth in the family Depressariidae. This species is distributed across eastern North America, ranging from southern Ontario and Quebec, through the Ohio Valley and southern Appalachian regions, to central Texas. The forewings of Ethmia zelleriella measure between 10.4 and 12 mm (0.41–0.47 inches) in length. The base color of the forewings is white, with gray dusting along the costa extending to the midcell. A series of elongated black spots are distributed more or less evenly across the entire forewing. The base color of the hindwings is white in the basal section, turning pale brownish in the apical area. Adult moths have different flight periods across their range: from April to June in Ohio and Maryland, from May to July in Indiana, from late April to early August in Tennessee, and in August in North Carolina. This species is thought to have two generations per year. The larvae of Ethmia zelleriella feed on plants in the Phacelia genus, including Phacelia dubia and Phacelia bipinnatifida. The larvae feed freely and do not construct a feeding web. To pupate, they bore into pieces of corky tree bark, such as the bark of Ulmus racemosa.
