It is found in Argentina and has been introduced to Australia and South Africa.

The forewings are soft grey, with a slightly darker pattern of markings.

The hindwings are pearly white, but dusky toward the outer margin.

[2] They are solitary and tunnel in the segments of their host plant, often transferring from one joint to another.

Pupation takes place in a cocoon, spun either within the hollowed-out segments, among debris or just beneath the soil surface.