Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Arivaca albidella is a species of snout moth. It is found in the south-western United States.The forewings are light tan to greyish brown.The Pyralidae or snout moths are a family of Lepidoptera in the ditrysian superfamily Pyraloidea. In many (particularly older) classifications, the grass moths (Crambidae) are included in the Pyralidae as a subfamily, making the combined group one of the largest families in the Lepidoptera. The latest review by Munroe & Solis, in Kristensen (1999)[Full citation needed] retains the Crambidae as a full family of pyraloidea.