Colour - Dark brown to black with yellow stripes running the length of its back. It has 2 cream spots at its rear end.
Body - Up to 60mm long, 5-8mm wide. Cylindrical.
Body - Stout mm long, mm wide.
Mouthparts - Chewing.
Antennae - Short. 3 segments.
Legs - 5 segments. Single claw on end.
Head - Hard.
Thorax - 10-11 segments. Spiracles on segments 1 to 8. Prolegs on segments 3, 6 and 10.
Habits - Herbivorous.
Pupa - In soil in vertical tunnel.
The moth flies during the day in autumn. Eggs are laid on pasture and hatch at the break of the winter season. Caterpillar eats the leaves and stems of broadleaf species such as capeweed and Erodium and are seen during the day. They produce a vertical tunnel in the soil for the pupa in spring. There is 1 generation per year.
Origin and History:
Caterpillars of this family attack broadleaf weeds such as capeweed and Erodium in pasture.
Management and Control:
Control is usually not necessary. They may be beneficial in keeping the level of broad leaf weeds down in pastures.