Ennomos alniaria

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Canary-shouldered thorn
Ennomos alniaria FvL.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Geometridae
Genus: Ennomos
Species:
E. alniaria
Binomial name
Ennomos alniaria

Ennomos alniaria, the canary-shouldered thorn, is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It can be found in Europe in a wide variety of biotopes where there are deciduous trees, perhaps mostly in deciduous forests and gardens.

Contents

Museum specimen Ennomos alnarius mounted.JPG
Museum specimen
Figure 7 shows male, female and larva Die Schmetterlinge Deutschlands mit besonderer Berucksichtigung ihrer Biologie, Bd. 1-4, by Karl Eckstein Dieschmetterling14ecks 0437.png
Figure 7 shows male, female and larva Die Schmetterlinge Deutschlands mit besonderer Berücksichtigung ihrer Biologie, Bd. 1-4, by Karl Eckstein

Description

The wingspan is 34–42 mm. The length of the forewings is 16–20 mm. Resembles Ennomos quercinaria , but has a canary-yellow thorax. The forewings are scalloped and there are also two cross lines. The wings are ochre yellow with greyish flecks. The bands, a small discal spot on the forewing and a larger discal spot on the hindwing are grey. The larva is brownish-grey, long and thin, with four raised cross-bands on the dorsal side. It closely resembles a dead twig. [1]

Other Ennomos species are similar.

Distribution

Caucasus and Russia to western Europe. The northern limit is Fennoscandia and the southern limit is the northern Mediterranean. It has also been introduced into British Columbia. [2]

Biology

The moths fly in one generation from July to October. They are attracted to light.

The larvae feed on a number of deciduous trees including downy birch and silver birch, alder and goat willow.

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<i>Ennomos autumnaria</i> Species of moth

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References

  1. Prout, L. B. (1912–16). Geometridae. In A. Seitz (ed.) The Macrolepidoptera of the World. The Palaearctic Geometridae, 4. 479 pp. Alfred Kernen, Stuttgart.pdf
  2. Covell, Charles V. Jr.; Ferguson, Douglas C.; Straley, Gerald B. (May 1986). "Ennomos alniaria (Lepidoptera: Geometridae), a European moth recently discovered in British Columbia". The Canadian Entomologist. Cambridge, UK: Entomological Society of Canada. 118 (5): 449–501. doi:10.4039/Ent118499-5. Closed Access logo transparent.svg

Notes

  1. ^ The flight season refers to the British Isles. This may vary in other parts of the range.