There are small species that have reached great importance in industry, such as silkworms, which are raised to obtain the material needed to make the finest and most elegant fabric, being their breeding one of the best kept secrets for thousands of years.
Clay, K. 2001. “Bombyx mori” (On-line), Animal Diversity Web. Accessed August 08, 2019 at https://animaldiversity.org/accounts/Bombyx_mori/
Encarta Concise. (1998). Encyclopedia Articles. http://encarta.msn.com
Herbison-Evans, Don. (1997). Lepidoptera Larvae of Australial. http://linus.socs.uls.edu.au
Lepidoptera Part 2. (1997) http://www.ex.ac.uk/gjloamel/lepidop2.html
Savela, Markku. (1998). http://www.funet.fi/pub/sci/bio/life