The Limacodidae or Eucleidae are a family of moths in the superfamily Zygaenoidea or the Cossoidea;[2] the placement is in dispute.

[4] The final instar constructs a silk cocoon and hardens it with calcium oxalate excreted from its Malpighian tubules.

[4] The thoracic legs are reduced, but always present, and they move by rolling waves rather than walking with individual prolegs.

Many limacodid larvae are green and fairly smooth (e.g. yellow-shouldered slug), but others have tubercles with urticating hairs and may have bright warning colours.

Limacodidae (e.g. Latoia viridissima, Parasa lepida, Penthocrates meyrick, Aarodia nana) have caused serious defoliation of palms.