Heterogenea asella

The triangle (Heterogenea asella) is a species of moth of the family Limacodidae. It is found in most of the Palearctic realm. The wingspan is 15–20 mm.[2] Adults are on wing from the end of May to mid July in one generation per year.

Larva
Figs. 7, 7a adult larva slightly magnified 7b adult larva natural sixe on beech leaf also the cocoon

Heterogenea asella
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Limacodidae
Genus:
Heterogenea
Species:
H. asella
Binomial name
Heterogenea asella
Synonyms
  • Bombyx asella Denis & Schiffermuller, 1775

The larvae feed on Acer, Corylus, Fagus and Quercus species. They are grub-like and have very short legs and a retracted head. Larvae can be found from August to May. The last instar larva overwinters in a cocoon resembling a gall.

References
  1. Heterogenea at funet
  2. UKmoths
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