Heterogenea

Heterogenea species are small moths with relatively broad, rounded wings and reduced wing venation typical of Limacodidae. They can be distinguished from other limacodid genera by genitalic characters and subtle wing pattern differences. The two species, H. asella and H. shurtleffi, are allopatric and separable by geographic range and minor morphological differences in wing pattern and size.

Associated with deciduous forests and woodlands. Larval hosts include various broadleaf trees and shrubs.

Europe (including Denmark, Norway, and Sweden), easternmost Asia, and northern North America. The two species show allopatric separation: Heterogenea asella occurs in Europe, while Heterogenea shurtleffi is found in North America.

Adults are active during summer months; specific flight periods vary by species and latitude.

• broadleaf trees and shrubs - larval food plantspecific host records are limited

Complete metamorphosis with egg, larval, pupal, and adult stages. Larvae are slug-like caterpillars characteristic of Limacodidae, with reduced prolegs and a gliding locomotion. Pupation occurs in a cocoon.

Adults are nocturnal and attracted to light. Larvae are slow-moving and feed exposed on leaves.

Larvae function as herbivores on deciduous vegetation. Their role in food webs is poorly documented but likely includes serving as prey for insectivores.

Occasional minor defoliator of ornamental trees. Not considered economically significant.

• other Limacodidae generashare reduced wing venation and slug-like larvae; distinguished by genitalic morphology and wing pattern details

• slug caterpillar moth
• Limacodidae
• amphi-Atlantic distribution
• deciduous forest

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life