Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Western Pineshoot Borer (Eucosma sonomana) is a moth of the Tortricidae family. It is found in western North America.The wingspan is 16-22 mm. Adults are on wing for two to three months during the spring. There is one generation per year.Larvae feed on pine species and is considered a pest on Pinus ponderosa. They mine the pith of terminal shoots.Tortricidae is a family of moths, commonly known as tortrix moths, in the order Lepidoptera. Tortricidae is a large family with over 9,400 species described, and is the sole member of the superfamily Tortricoidea.