The Unbarred Spodoptera Moth or Gray-streaked Armywom Moth (Spodoptera albula) is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Noctuidae

Noctuidae

The Noctuidae or owlet moths are a family of robustly-built moths that includes more than 35,000 known species out of possibly 100,000 total, in more than 4,200 genera. They constitute the largest family in the Lepidoptera....

 family. It is found from the southern United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, south to South America

South America

South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is 33-35 mm. The forewings are brownish-grey with dark streaks along the veins. There is a thin black basal dash and a reniform spot in the form of a small dark dot. The hindwings are white with pale grey shading and a dotted black terminal line. Adults are on wing in the final half of the year, peaking in November.

The larvae feed on Amaranthus species.