Spider silk was mainly used by the Betsileo to make the large prevail blankets to wrap it in.
巴茨里奥人主要用蛛丝来做流行的大披毯。
英语百科
Betsileo people
The Betsileo are a highland ethnic group of Madagascar, the third largest in terms of population, numbering around 1.5million and making up about 12.1 percent of the population. They chose their name, meaning "The Many Invincible Ones", after a failed invasion by King Ramitraho of the Menabe kingdom in the early 19th century.