Zygaena exulans

Zygaena exulans, the mountain burnet or Scotch burnet, is a moth of the family Zygaenidae.

Zygaena exulans
Zygaena exulans, female
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Zygaenidae
Genus:
Zygaena
Species:
Z. exulans
Binomial name
Zygaena exulans
(Reiner & Hohenwarth, 1792)
Synonyms
  • Sphinx exulans Hohenwarth, 1792
  • Zygaena exulans altaretensis Le Charles, 1942
  • Zygaena exulans bourgognei Le Charles, 1942

Subspecies

Subspecies include:[1]

  • Zygaena exulans exulans (European Alps)
  • Zygaena exulans abruzzina Burgeff, 1926
  • Zygaena exulans apfelbecki Rebel, 1910
  • Zygaena exulans pyrenaica Burgeff, 1926
  • Zygaena exulans subochracea White, 1872
  • Zygaena exulans vanadis Dalman, 1816

Distribution and habitat

This species exist in mountainous areas in southern Europe (Alps, Pyrenees, Apennines, Balkans), at an elevation of 1,800–3,000 metres (5,900–9,800 ft) above sea level. It is also present in Scotland, in Scandinavia and in northern Russia.[2][3] These moths inhabit mountain lawns and northern moors.

Description

Zygaena exulans has a wingspan of 25–33 millimetres (0.98–1.30 in).[4] The body is densely haired. The forewings are black-gray in males, matt gray in the females, almost translucent and with a metallic sheen. They have four distinct red dots and a red basal elongated stain. The spot on the wing root is wedge-shaped, the others are oval or round. The hindwings are red with a gray outer edge and black fringes. The antennae are club-shaped.

These moths have an aposemantic coloration. In the event of an attack by predators such as birds and lizards they emit a liquid containing cyanide.

This species is rather similar to Zygaena lonicerae, Zygaena loti and Zygaena purpuralis.

The eggs are pale yellow, relatively large and oval. The caterpillars can reach a length of about 20 millimetres (0.79 in). They are velvety black, with yellowish markings on each segment and short white hair. The pupa is brown-black and lies in a gray-white, thin cocoon.[5]

Biology

Adults usually fly in sunshine from late May to September, depending on the location. Larvae feed on crowberry (Empetrum nigrum) in northern Europe. Elsewhere they are polyphagous, mainly feeding on Helianthemum nummularium, Anthyllis vulneraria, Dryas octopetala, Silene acaulis, Astragalus alpinus, Carex, Polygonum viviparum, Salix, Thymus, Vaccinium uliginosum, Chamorchis alpina, Betula nana, Viscaria alpina, Thalictrum alpinum, Cassiope tetragona, Bartsia alpina and Saxifraga aizoides.[3][4][6] This species hibernates in the form of a larva.

  • Caterpillar
  • Caterpillar and pupa
  • Moth
  • Mounted specimen
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References
  1. Biolib
  2. Fauna europaea
  3. Funet - Markku Savela's Lepidoptera and some other life forms
  4. UK Moths
  5. Lepiforum.de
  6. Paolo Mazzei, Daniel Morel, Raniero Panfili Moths and Butterflies of Europe and North Africa
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