A moth in the family Bombycidae, it is very important economically as the producer of silk.    From Wordnik.com.  [WN.com - Articles related to French holiday firm debuts 'Eco-Nature' resorts] Reference

A. Silk is produced in Thailand's most favorable climate by two types of silkworms - the cultured Bombycidae and wild Saturniidae.    From Wordnik.com.  [LearnHub Activities] Reference

Erycinidae, three Castnias (a genus of day-flying moths), and fourteen species of diurnal Bombycidae, all imitating some species of Heliconidae which inhabited the same district; and it is to be especially noted that none of these insects were so abundant as the Heliconidae they resembled, generally they were far less common, so that Mr. Bates estimated the proportion in some cases as not one to a thousand.    From Wordnik.com.  [Darwinism (1889)] Reference

Bombycidae; and in beetles, amongst many others, the rare Xestia nitida (Bates) and Hexoplon albipenne (Bates) were first described from these evening captures.).    From Wordnik.com.  [The Naturalist in Nicaragua] Reference