Butterflies have inspired and fascinated mankind throughout history, as can be seen in countless pieces of art and cultural items. The butterfly has also influenced society in one very important way, silk. Most moths spin silk for their cocoons, some of them producing valuable threads, among them the Bombycideae and Saturnidae species, or silk moths. Originally silk stems from China, where it has been well known for the last 5.000 years. Silk as well as scientific, religious and cultural knowledge came to Europe via the famous silk route. Still today, China is one the foremost producers of silk in the world but Thailand, India, Japan, Italy and others also produce commercial quantities.
Butterflies can also appear as pests in agriculture and in gardens, with the caterpillars eating the leaves of plants. Considerable damage can be caused in gardens, agriculture and the forest industry. The small Cabbage Whitling for example, used to cause serious damage to the cabbage fields of Europe. A new pest to Austria is the Box Tree Moth, which was first observed in the country in 2009. It could potentially cause serious damage to the Box Tree stocks in Austria.
A few butterflies feed only, or partly, on excrement, urine, sweat, blood or tear fluid and can act as a source of disease. These species are however very rare and exist only in the subtropics.