Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Cinnabar moth (Tyria jacobaeae) is a brightly coloured arctiid moth, found in Europe and western and central Asia. It has been introduced into New Zealand, Australia and North America to control poisonous ragwort, which its larvae feed on. The moth is named after the red mineral cinnabar because of the red patches on its predominantly black wings. Cinnabar moths are about 20mm long and have a wingspan of 32-42 mm (1.3-1.7 in).Cinnabar moths are day-flying insects. Like many other brightly coloured moths, it is unpalatable; The larvae use members of the genus Senecio as foodplants. Many members of the genus have been recorded as foodplants but for long term population success the presence of the larger species such as ragwort is needed. Smaller plant species such as groundsel are sometimes used but since the species lays its eggs in large batches survival tends to be reduced. The larvae absorb bitter tasting alkaloid substances from the foodplants, and assimilate them, becoming unpalatable themselves. The bright colours of both the larvae and the moths act as a warning sign so that they are seldom eaten by predators.

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