About Pygarctia pterygostigma Dyar, 1909
Pygarctia pterygostigma is a species of moth that belongs to the Erebidae family. This species was first formally described by Harrison Gray Dyar Jr. in 1909. It is native to Mexico, and can be found in the United States in the states of New Mexico and southern Texas. The wingspan of adult Pygarctia pterygostigma measures approximately 28 millimeters. Adult moths of this species are active and in flight between the months of June and September.