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This grey-brown moth had a wing span of about 50 mm. It was resting with its wings tented. Each wing showed two small dark spots ringed with white and medial to this, each wing had a dark brown arrow-head mark pointing towards the trailing margin. The head, thorax and legs were covered with dense short grey setae.
Spotted under bright lights near a national park (Dandenong Ranges)
The Bogong Moth has an important place in Australian history. The moths breed in the alpine plains in the summer months and move to cooler mountainous parts and caves of the Alpine Ranges when the plains warm-up. They especially congregate around Mt Bogong (hence the common name) often resting in such large numbers that the indigenous people moved to the Alps during these months to collect and feast on these moths.
During these migratory flights some are blown into cities of Canberra, Sydney and Melbourne in huge numbers - something that disturbs some people!
The moths aestivate until autumn and move down to the plains to lay their eggs.
Larvae feed on varieties of brassicas, broad-leaved native weeds and some young cereal plants. They can destroy agricultural plants in large numbers and are therefore considered as pests.
Lat: -37.89, Long: 145.31
Spotted on Jun 3, 2018
Submitted on Jul 27, 2018
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