Spodoptera exigua

Family: Noctuidae

Order: Lepidoptera


Night flying moths with eyes that reflect orange light.
Colour -
Body - Medium size. Long hair scales.
Wings - 2 Pairs. Membranous. Hairy.
Mouthparts -
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
Egg -
Habits - Can't fly when cold.
Caterpillar -
Colour -
Body - 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.
Abdomen -
Habits - Herbivorous.
Pupa -


Life Cycle:

Caterpillar eats the leaves and stems.


Origin and History:

Native to Australia.



Caterpillar is a minor pest of cereals and grasses. Most damage usually occurs from September to January.

Management and Control:

Preyed on by scarab beetles.

Related Species:

Bogong moth, Cluster caterpillar, Common Armyworm, Corn Earworm, Cutworms, Helicoverpa or Heliothis, Inland Armyworm, Lawn Armyworm, Loopers, Native budworm, Southern Armyworm.

Similar Species:


CSIRO. The Insects of Australia. Melbourne University Press. (1991) p226.


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