Tropical Asia, Indonesia, Africa and Tropical America are the original sites of the insects that are distributed in the state of chrysalid. Butterflies are grown in centers whose goals are as follows:
· the preservation of the same butterflies, since they are grown and released in a natural environment;
· the protection of local nature, since the original forest is newly set up or protected;
· the economy of individuals and families in poor countries, especially through a direct connection with the natural environment, so that they become the first tutors of such environment;
· the study of wild species;

Example of a project of Butterfly Farming (fattoria delle farfalle). The scheme outlines the various advantages and savings achieved through the project.
An aliquot of the butterflies is reproduced locally, especially the species which are the subject of scientific investigations. Taking care of the preservation of natural species and the development of projects based on a sustainable economy are the most qualifying points and mandatory goals for Butterfly Arc. Thus in the periodical worldwide meetings with the already numerous colleagues belonging to the most important and prestigious naturalistic and zoological museums over the world, Butterfly Arc has always promoted the adoption of ethical codes which put the above detailed principles into practical operation.

It is from these institutions operative throughout the world that Dr. Enzo Moretto received the task to draft the first ethical code regulating this field. The code was presented for the first time at the International Congress of “Butterflies Exhibitors and Suppliers” , which was held in Cape Town in 1999 and was presented in its final version at Penang (Malaysia) in 2000.

As shown in the scheme, tropical butterflies are produced in butterfly farms. The most important projects aim at the preservation of butterflies, their study and promotion, while the savings obtained through the growth of butterflies are useful for protecting their habitats and maintaining the working activities of the locally living persons. This generates sustainable economies and forest preservation (The picture shows some Butterfly Farmers in Kenya. Kipepeo Project).