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Lac tubes created by Kerria lacca. Kerria lacca is a species of insect in the family Kerriidae, the lac insects.These are in the superfamily Coccoidea, the scale insects.. This species is perhaps the most commercially important lac insect, being a main source of lac, a resin which can be refined into shellac and other product
Kerriidae is a family of scale insects, commonly known as lac insects or lac scales.Some members of the genera Metatachardia, Tachardiella, Austrotacharidia, Afrotachardina, Tachardina, and Kerria are raised for commercial purposes, though the most commonly cultivated species is Kerria lacca.
Spider mites make webs that protects them against predators. Symphyla produce silk through a pair of spinnerets, which is used for nest building, escape and defense. [7] Pseudoscorpions make silk chambers in which they molt. Goats have been genetically modified to produce milk containing extractable silk proteins. [8] Dulichia rhabdoplastis [9]
The word lac is derived from the Sanskrit word lākshā '(लाक्षा) representing the number 100 thousand, which was used for both the lac insect (because of their enormous number) and the scarlet resinous secretion it produces that was used as wood finish, lacquerware, skin cosmetic, ornaments and dye for wool and silk in ancient India and neighbouring areas.
Made into a red dye known as carmine, cochineal are incorporated into many products, including cosmetics, food, paint, and fabric. About 100,000 insects are needed to make a single kilogram of dye. The shade of red the dye yields depends on how the insect is processed. France is the world's largest importer of carmine.
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The cocoon is made of a thread of raw silk from 300 to about 900 metres (980 to about 3,000 ft) long. The fibers are fine and lustrous, about 10 μm (0.0004 in) in diameter. About 2,000 to 3,000 cocoons are required to make one pound (0.45 kg).
Fulgora laternaria can reach a length of 85–90 millimetres (3.3–3.5 in), with a wingspan up to 100–150 millimetres (3.9–5.9 in). This insect has a protuberance at its head as long as 10–15 millimetres (0.39–0.59 in), looking like a peanut and showing false eyes to resemble that of a lizard or a serpent.