19+ Diagram Of Silk Moth Cycle Background. A pair of accessory glands, called the glands of filippi the secretion of this gland mixes with that of the silk gland and probably lubricates the inner and structure of silk moth (with diagram) | zoology. In the pupa stage, a weave is netted around by the silkworm to hold itself.
Silk is the most expensive fabric available and it has a rich texture.
Silk is the most important animal fiber and the most luxurious type of fibers ever. The silkworm secretes fine filaments from two glands on its head. The filaments are made of a protein that hardens to form silk fibres when exposed. Silkworms are actually not worms, instead, they're larvae or caterpillars hatched from its eggs.