ANIMAL SPECIES:Bogong Moth
Bogong Moths belong to the Family Noctuidae and are well known in south-eastern Australia for their mass migration in spring. In some years, they have descended upon cities such as Sydney and Canberra in their thousands, causing disruption around outdoor sports grounds and to air-conditioning plants.
Alternative Name/s
The larvae are known as Black Cutworms.Identification
The Bogong Moth is native to Australia and was first described from Mount Bogong in southern New South Wales.
Size range
5 cmDistribution
Bogong Mouths are found in southern Australia, including Tasmania. Occasionally found in New Zealand and Norfolk Island.
Habitat
Bogong Moths live in urban areas, forests and woodlands.
Behaviour and adaptations
Seasonality
During winter, Bogongs feed inland as black cutworms on seedlings of wide-leafed plants in an area ranging from southern Queensland to South Australia. During spring, they fly south to south-eastwards, to caves in the Snowy Mountains, where they remain inactive (aestivation) throughout the summer months. They are sometimes blown towards the coast by westerly winds and may enter houses as they are attracted to light. Over summer, adults congregate in rock crevices in massive numbers and remain dormant, living off their fat reserves. They then migrate north to breed as their larvae can't tolerate cold conditions.
Feeding and Diet
Bogong Moths feed inland as black cutworms on seedlings of wide-leafed plants.
Predators, Parasites and Diseases
The adult moths are also important in the diet of the Mountain Pygmy Possum (Burramys).
Conservation Status
Recently concern has mounted about arsenic levels in the Bogong Moths. The arsenic is present at low levels in the soil of their larval pasturelands and is stored in the body of the adult moth. When the moths die off in their caves, the arsenic leaches from their bodies into the local soil. The arsenic becomes concentrated because of the build-up of dead moths on the floor of the cave over many years. The arsenic could potentially adversely affect their predators, including the Mountain Pygmy Possum, but this has not yet been fully demonstrated.
Living with us
Economic/social impacts
The Bogong Moth is native to Australia and was first described from Mount Bogong in southern New South Wales. Aborigines had a good knowledge and understanding of the habits of the Bogong Moth. They roasted the highly nutritious moths in hot ashes and mashed the bodies to make 'moth meat', which is said to have a nutty taste. The mountain caves were known to Aboriginal people, who used the moths as an important source of protein.
Caterpillars of the Bogong Moth are known as cutworms and are considered an agricultural pest, causing significant damage to crops.
Classification
- Species:
- infusa
- Genus:
- Agrotis
- Subfamily:
- Noctuinae
- Family:
- Noctuidae
- Superfamily:
- Noctuoidea
- Order:
- Lepidoptera
- Class:
- Insecta
- Subphylum:
- Uniramia
- Phylum:
- Arthopoda
- Kingdom:
- Animalia
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Adult Bogong Moth, Agrotis infusa View full size
R.Jessop
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