Triangle

  • Triangle
    Triangle
  • Triangle
    Triangle
  • Triangle
    Triangle
  • Triangle
    Triangle

Scientific name: Heterogenea asella

Mid-June to late July. Nationally scarce, found only in a few locations in the south of England. A very small moth with a triangular-shaped forewing.

At rest the wings are held over the body like a tent. The triangular-shaped forewing has a curved leading edge.

The adults mainly fly at night and are attracted to light, usually only on warm nights. The caterpillars can be found from August to the following May overwintering as fully grown larvae in gall-like cocoons on a leaf or twig.

Size and Family

  • Family – Limacodidae
  • Small Sized
  • Wingspan Range – 10-22mm

Conservation status

  • UK BAP: Not listed
  • Red Data Book species

Caterpillar Food Plants

Pedunculate Oak (Quercus robur), other oaks and Beech (Fagus sylvatica)

Habitat

Oak (Quercus robur) and Beech (Fagus sylvatica) woodland.

Distribution

  • Countries – England
  • Scarce. Found locally in the southern half of England, mostly in Hampshire, Sussex, south-east Kent and Wiltshire.