Limacodidae

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Family of moths

title: "Limacodidae" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["limacodidae", "moth-families"] description: "Family of moths" topic_path: "general/limacodidae" source: "https://en.wikipedia.org/wiki/Limacodidae" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Family of moths ::

| image = Apoda limacodes01.jpg | image_caption = The festoon, Apoda limacodes | taxon = Limacodidae | authority = | diversity = About 400 genera, 1800 species | diversity_link = Taxonomy of Limacodidae | subdivision_ranks = Subfamilies | subdivision = Chrysopolominae

Limacodinae

For full list of genera, see Taxonomy of Limacodidae. | synonyms =

  • Euclidae
  • Apodidae Paclt, 1947

The Limacodidae or Eucleidae are a family of moths in the superfamily Zygaenoidea or the Cossoidea; 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.

The larvae are often liberally covered in protective stinging hairs, and are mostly tropical, but occur worldwide, with about 1800 described species and probably many more as yet undescribed species.

Description

Moths

They are small, hairy moths, with reduced or absent mouthparts and fringed wings. They often perch with their abdomens sticking out at 90° from their thoraces and wings. North American moths are mostly cryptic browns, sometimes marked with white or green, but the hag moth mimics bees.

Pupae

The final instar constructs a silk cocoon and hardens it with calcium oxalate excreted from its Malpighian tubules. Cocoons have a circular escape hatch, formed from a line of weakness in the silk matrix. It is forced open just prior to emergence of the adult.

Caterpillars

The larvae are typically very flattened, and instead of prolegs, they have suckers. The thoracic legs are reduced, but always present, and they move by rolling waves rather than walking with individual prolegs. They even use a lubricant, a kind of liquefied silk, to move.

Larvae might be confused with the similarly flattened larvae of lycaenid butterflies, but those caterpillars have prolegs, are always longer than they are wide, and are always densely covered in short or long setae (hair-like bristles). The head is extended during feeding in the lycaenids, but remains covered in the Limacodidae.

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. The sting can be quite potent, causing severe pain.

The larval head is concealed under folds. First-instars skeletonise the leaf (avoiding small veins and eating mostly one surface), but later instars eat the whole leaf, usually from the underside. Many species seem to feed on several genera of host plants.

Limacodidae larvae in temperate forests of eastern North America prefer glabrous leaves, presumably because the trichomes of pubescent leaves interfere with their movement.

Image:PhobUnderside.JPG|Underside of a monkey slug, showing the slimy pad in place of prolegs Image:Lithacodes.JPG|Larva of the yellow-shouldered slug, showing typical body shape Image:Cup moth caterpillar.jpg|Doratifera larva, showing bright colours and presumably stinging setae Image:Saddleback (Sibine stimulea).jpg|Sibine stimulea (saddleback caterpillar) larva File:Parasa pastoralis caterpillar.jpg|Larva of Parasa pastoralis Image:Stinging_Rose_caterpillars,_Megan_McCarty65.jpg|Stinging rose caterpillars (Parasa indetermina) Image:Richters wurm.JPG|Limacodid larva File:Limacodidae (Slug moths) caterpillar W IMG 2795.jpg|Limacodid (slug moth) caterpillar Slug moth caterpillar (Limacodidae sp.).jpg|Slug moth caterpillar, Sabah, Borneo

Eggs

Eggs are flattened and thin. They are highly transparent and the larva can be seen developing inside. They may be laid singly or in clusters on leaves.

Ecological importance

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

Notable species

References

References

  1. Paclt, Jiří. (2008). "On the triple usage of the family name Apodidae in zoology (Aves; Crustacea; Insecta)". Senckenbergiana Biologica.
  2. Scoble, M.J. (1992). ''The Lepidoptera: Form, Function and Diversity.'' Oxford University Press. {{ISBN. 9780198540311
  3. . (4 June 2013). ["New Species of Yellow Slug Moth Found in China"](http://www.scientificcomputing.com/news/2013/06/new-species-yellow-slug-moth-found-china). *Advantage Business Media*.
  4. Wagner, D.L. (2005). ''Caterpillars of Eastern North America.'' Princeton University Press. {{ISBN. 9780691121437
  5. Epstein, M.E. (1996). "Revision and phylogeny of the limacodid-group families, with evolutionary studies on slug caterpillars (Lepidoptera: Zygaenoidea)." ''Smithsonian Contributions to Zoology.'' No. 582. ISSN 0081-0282
  6. Marshall, S.A. (2006). ''Insects: Their natural history and diversity.'' Firefly Books. {{ISBN. 9781552979006
  7. Lill, J.T., Marquis, R.J., Forkner, R.E., Le Corff, J., Holmberg, N., & Barber, N.A. (2006). "Leaf pubescent affects distribution and abundance of generalist slug caterpillars (Lepidoptera: Limacodidae)." ''Environmental Entomology'' 35(3): 797–806. ISSN 0046-225X

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