Garden tiger moth

Arctia caja

The garden tiger moth is a moth of the Arctiidae family. It has a wingspan of 45 to 65 millimetres. The design of the wings varies: the front wings are brown with a white pattern, the back wings orange with a pattern of black dots.
Arctia caja Garden Tiger Moth from the Eden Valley, Cumbria Arctia caja,Cumbria,Eden Valley,Garden tiger moth

Appearance

The conspicuous patterns serve as a warning to predators, because the moth's body fluids are poisonous. Its effects are not yet fully known, but they contain quantities of choline esters which are neurotoxic by interfering with the acetylcholine receptor.

The colours are also ideal for frightening predators such as small birds: the moth normally hides its hindwings under the cryptic forewings when resting. If a threat is perceived, the moth quickly shows its red colour and flies away. In this way, it successfully confuses and warns off the predator.
Garden tiger moth This beautiful moth enjoyed my day lilies and spent the day going from one flower to the next. Arctia caja,Garden tiger moth,Geotagged,United States

Distribution

The garden tiger moth is found throughout Europe as far north as Lapland, in Asia, and in North America. In the mountains this species is found up to an elevation of 3,000 metres . The garden tiger moth loves damp places, which is why it is particularly common in river valleys as well as gardens and parks. The moth is nocturnal and can usually only be seen flying around a source of light. The distinctively coloured, long-haired caterpillar, on the other hand, is seen more frequently. It can grow up to 6 cm long and plays dead when in danger. These moths are most common in June to August, in gardens, park, meadows, grasslands, and scrubby areas.

On August 28, 2007, the new Biodiversity Action Plan identified 1,149 species and 65 habitats in the UK that need conservation and greater protection. The updated list include hedgehog, house sparrows, grass snake and the garden tiger moth; otters, bottlenose dolphins and red squirrels remained in need of habitat protection.

Its numbers in the UK have declined by 89% over the past 30 years.

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