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Zygaena erythrus

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Species of moth

Zygaena erythrus
Zygaena erythrus, dorsal view
Lateral view
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Zygaenidae
Genus: Zygaena
Species: Z. erythrus
Binomial name
Zygaena erythrus
(Hubner, 1806)

Zygaena erythrus, common name sluggish burnet, is a species of moth in the family Zygaenidae.

Mounted specimen of Zygaena erythrus

Subspecies

  • Zygaena erythrus erythrus
  • Zygaena erythrus actae Burgeff, 1926
  • Zygaena erythrus miserrima Verity, 1922
  • Zygaena erythrus saportae Boisduval, 1829

Distribution and habitat

This endangered species can be found only in France and Italy. It prefers dry and rocky areas with sparse vegetation and limestone substrate, but it is also present in heathlands, in nutrient-poor grasslands and in broad verges in oak forests with the host plant Eryngium species, from sea level to over 1,500 metres (4,900 ft).

Description

Zygaena erythrus has a wingspan of 25–33 mm. These quite large moths show enlarged and confluent red spots on the forewings, surrounded by black in the distal part. Females are little bigger than males, with a yellow golden dusting and less defined markings. The mature larva is rather dark greyish, with two series of dorsal black spots.

This species is very similar to Zygaena purpuralis, but it has red scales in the axillary area of the forewings, up to a third of the length.

Technical description and variation (Seitz)

For a key to the terms used, see Glossary of entomology terms.

Z. erythrus Hbn. (= saportae Boisd.; minos Boisd.) (4a). Larger; antenna longer, with thicker club. The red colour of forewing restncted to 3 streaks, the distal one being wedge-shaped; moreover, only the basal third of the hindmargin of forewing is red. South France, Italy and Sicily. In ab. irpina Zickert, from the Riviera, the cuneiform spots are confluent. — As magna ] (4 a) a very large form from the Abruzzi is sold by Staudinger; the posterior cuneiform spot is strongly widened and distally straight-truncate.— Larva dull greenish yellow, with heavy black dots subdorsally and yellow side-spots (Sapokta); in some districts not distinguishable from the larva of purpuralis. On Eryngium and Thyme (Rouast). Hibernating; pupation at end of May. Imago in June and July; frequently sitting on Thyme and Eryngium.

Biology

The life cycle involves only one generation per year. Adults are on wing from the end of June to the beginning or mid August. The hatching occurs between June and July. The larvae feed on Eryngium species, including Eryngium campestre and Eryngium maritimum. Full-grown larvae can be found from June. Pupation occurs within a cocoon usually adherent to the lower surface of the leaves, but also on the ground between lichens, moss and parts of plants.

References

  1. ^ Zygaena at funet
  2. ^ lepiforum.de
  3. and Slovenia Fauna Europaea
  4. ^ Natura Mediterraneo
  5. Nature of Italy
  6. ^ Treknature
  7. Seitz, A., 1913, in Seitz, Gross-Schmett. Erde 6: 22., The Macrolepidoptera of the Palearctic Fauna 2. Volume: The Palearctic Bombyces & Sphinges. pdf
  8. ^ Schmetterlinge und ihre Ökologie
  9. Moths and Butterflies of Europe and North Africa
Taxon identifiers
Zygaena erythrus


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