Erannis jacobsoni

Erannis jacobsoni
	Larva
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Geometridae
Genus:	Erannis
Species:	E. jacobsoni
Binomial name
	Erannis jacobsoni; Djakonov, 1926 [1]
Synonyms
	Hybernia jacobsoni;

Last updated September 20, 2019

Erannis jacobsoni, or Jacobson's spanworm, is a moth of the family Geometridae. The species was first described by Alexander Michailovitsch Djakonov in 1926. It is found in Europe (Russia: eastern Siberia, the Russian Far East and western Siberia) and Asia (China: Nei Menggu, Japan: Hokkaido, Honshu and Shikoku, Kazakhstan and Mongolia).^[2]

Moths are a polyphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, but there are also crepuscular and diurnal species.

A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species which have been described previously or are related. The species description often contains photographs or other illustrations of the type material and states in which museums it has been deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct.

Russia, or the Russian Federation, is a transcontinental country in Eastern Europe and North Asia. At 17,125,200 square kilometres (6,612,100 sq mi), Russia is, by a considerable margin, the largest country in the world by area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with about 146.79 million people as of 2019, including Crimea. About 77% of the population live in the western, European part of the country. Russia's capital, Moscow, is one of the largest cities in the world and the second largest city in Europe; other major cities include Saint Petersburg, Novosibirsk, Yekaterinburg and Nizhny Novgorod. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a wide range of environments and landforms. From northwest to southeast, Russia shares land borders with Norway, Finland, Estonia, Latvia, Lithuania and Poland, Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, China, Mongolia and North Korea. It shares maritime borders with Japan by the Sea of Okhotsk and the U.S. state of Alaska across the Bering Strait. However, Russia recognises two more countries that border it, Abkhazia and South Ossetia, both of which are internationally recognized as parts of Georgia.

The larvae feed on Larix species, including L. gmelinii and L. sibirica .

Larix gmelinii, the Dahurian larch, is a species of larch native to eastern Siberia and adjacent northeastern Mongolia, northeastern China (Heilongjiang) and North Korea.

Larix sibirica, the Siberian larch or Russian larch, is a frost-hardy tree native to western Russia, from close to the Finnish border east to the Yenisei valley in central Siberia, where it hybridises with the Dahurian larch L. gmelinii of eastern Siberia; the hybrid is known as Larix × czekanowskii.

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Siberia is an extensive geographical region spanning much of Eurasia and North Asia. Siberia has historically been a part of modern Russia since the 17th century.

The Russian Far East comprises the Russian part of the Far East, the easternmost territory of Russia, between Lake Baikal in Eastern Siberia and the Pacific Ocean.

The willow ptarmigan is a bird in the grouse subfamily Tetraoninae of the pheasant family Phasianidae. It is also known as the willow grouse and in Ireland and Britain, where it was previously considered to be a separate species, as the red grouse. It is a sedentary species, breeding in birch and other forests and moorlands in northern Europe, the tundra of Scandinavia, Siberia, Alaska and Canada, in particular in the provinces of Newfoundland and Labrador and Quebec. It is the state bird of Alaska. In the summer the birds are largely brown, with dappled plumage, but in the winter they are white with some black feathers in their tails. The species has remained little changed from the bird that roamed the tundra during the Pleistocene. Nesting takes place in the spring when clutches of four to ten eggs are laid in a scrape on the ground. The chicks are precocial and soon leave the nest. While they are young, both parents play a part in caring for them. The chicks eat insects and young plant growth while the adults are completely herbivorous, eating leaves, flowers, buds, seeds and berries during the summer and largely subsisting on the buds and twigs of willow and other dwarf shrubs and trees during the winter.

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Varroa jacobsoni is a species of mite that parasitises Apis cerana. The more damaging Varroa destructor was previously included under the name V. jacobsoni, but the two species can be separated on the basis of the DNA sequence of the cytochrome oxidase I gene in the mitochondrial DNA.

The Siberian roe deer or eastern roe deer is a species of roe deer found in northeastern Asia. In addition to Siberia and Mongolia, it is found in Kazakhstan, the Tian Shan Mountains of Kyrgyzstan, eastern Tibet, the Korean Peninsula, and northeastern China (Manchuria).

Hemistola chrysoprasaria, the small emerald, is a moth of the family Geometridae. The species can be found in all Europe including the Iberian Peninsula and Russia East to the Ural Mountains, North Africa, Asia Minor, Transcaucasia and the mountains of Eastern Asia, and China Tian Shan

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<i>Trichopteryx polycommata</i> Species of moth

Trichopteryx polycommata, the barred tooth-striped, is a moth of the family Geometridae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It is found in Europe and the Near East, east to the Caucasus, Transcaucasia, the southern Russian Far East (Primorsk) and Japan (Hokkaido).

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References

↑ Savela, Markku. "Erannis jacobsoni Djakonov, 1926". Lepidoptera and Some Other Life Forms. Retrieved February 4, 2019.
↑ "Distribution Maps of Plant Pests - Erannis jacobsoni". Archived from the original on 2012-03-18. Retrieved 2011-09-05.

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[1] Savela, Markku. "Erannis jacobsoni Djakonov, 1926". Lepidoptera and Some Other Life Forms. Retrieved February 4, 2019.

[2] "Distribution Maps of Plant Pests - Erannis jacobsoni". Archived from the original on 2012-03-18. Retrieved 2011-09-05.