Pasture Day Moth
Colour - Variable, brightly coloured, browns, yellows, reds, greens, oranges, often with blotches. Black and orange rings are around the body.
Body - Medium size. Long hair scales.
Wings - 2 Pairs. Membranous. Hairy. Fore wings with orange streaks cut by cream blotches on a dark background. Rear wings less patterned with a cream band and spots on a dark background.
Broad, Wing-span up to 80 mm.
Antennae - 3 segments.
Legs - Broad overlapping scales. Feet (Tarsi) have 5 segments.
Head - Broad overlapping scales. Large rounded compound eyes.
Thorax - Broad overlapping scales. 3 segments. Front segment much smaller. Hairy
Abdomen - Broad overlapping scales. 7-11 segments. Spiracles on segments 1-7. Hairy
Habits - Can't fly when cold.
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 60 mm long, 5-8 mm 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 is seen during the day. They produce a vertical tunnel in the soil for the pupa in spring. There is 1 generation per year.
Habitats: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.
Related Species:Bogong moth, Cluster caterpillar, Common Armyworm, Corn Earworm, Cutworms, Helicoverpa or Heliothis, Inland Armyworm, Lawn Armyworm, Loopers, Native budworm, Southern Armyworm.
CSIRO. The Insects of Australia. Melbourne University Press. (1991) p914.
WADA. Insects and Allied Pests of Extensive Farming. Department of Agriculture - Western Australia Bulletin No. 4185. p53.
Acknowledgments:Collated by HerbiGuide. Phone 08 98444064 or www.herbiguide.com.au for more information.