Limacodidae or Euclidae is a family of moths in the superfamily Zygaenoidea or the Cossoidea[1]; the placement is in dispute. They are often called slug moths because their caterpillars bear a distinct resemblance to slugs. They are also called cup moths because of the shape of their cocoons. They are mostly tropical, but occur worldwide, with about 1000 described species and probably many more as yet undescribed species.

Oecophoridae (concealer moths) is a family of small moths in the superfamily Gelechioidea. The phylogeny and systematics of gelechoid moths are still not fully resolved, and the circumscription of the Oecophoridae is strongly affected by this.
(Source: Wikipedia)