Rhagastis mongoliana is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Sphingidae

Sphingidae

Sphingidae is a family of moths , commonly known as hawk moths, sphinx moths and hornworms, that includes about 1,200 species . It is best represented in the tropics but there are species in every region . They are moderate to large in size and are distinguished among moths for their rapid,...

 family. It is found from China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

, north to Mongolia

Mongolia

Mongolia is a landlocked country in East and Central Asia. It is bordered by Russia to the north and China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only from Kazakhstan's eastern tip. Ulan Bator, the capital and largest...

, Korea

Korea

Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

 and the Primorsky Krai

Primorsky Krai

Primorsky Krai , informally known as Primorye , is a federal subject of Russia . Primorsky means "maritime" in Russian, hence the region is sometimes referred to as Maritime Province or Maritime Territory. Its administrative center is in the city of Vladivostok...

 in Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

, and east to Taiwan

Taiwan

Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

 and Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is 47-63 mm. There are two generations per year, with adults on wing from late April to August in north-eastern China.

Larvae have been recorded feeding on Berberis

Berberis

Berberis , the barberries or pepperidge bushes, is a genus of about 450-500 species of deciduous and evergreen shrubs from 1-5 m tall with thorny shoots, native to the temperate and subtropical regions of Europe, Asia, Africa, North America and South America. They are closely related to the genus...

, Cayratia

Cayratia

The botanical genus Cayratia comprises approximately 45 species, some of which have utility value to people. It is found in tropical and subtropical areas of Asia, Africa, Australia, and islands of the Pacific ocean....

, Impatiens

Impatiens

Impatiens is a genus of about 850–1,000 species of flowering plants, widely distributed throughout the Northern Hemisphere and tropics. Together with the puzzling Hydrocera triflora, this genus makes up the family Balsaminaceae...

, Polygonum

Polygonum

Polygonum is a genus in the Polygonaceae family. Common names include knotweed, knotgrass, bistort, tear-thumb, mile-a-minute, and several others. In the Middle English glossary of herbs "Alphita" , it was known as ars-smerte. There have been various opinions about how broadly the genus should be...

and Vitis

Vitis

Vitis is a genus of about 60 species of vining plants in the flowering plant family Vitaceae. The genus is made up of species predominantly from the Northern hemisphere. It is economically important as the source of grapes, both for direct consumption of the fruit and for fermentation to produce...

species in China, Cayratia japonica

Cayratia japonica

Cayratia japonica is a species of herbaceous plant native to Australia and Asia. It is used as a traditional Chinese medicine to relieve swelling and heat, and to enhance diuresis and detoxification....

, Impatiens balsamina

Impatiens balsamina

Impatiens balsamina is a species of Impatiens native to southern Asia in India and Myanmar.It is called kamantigue in the Philippines. This species of Kalamantigue are used in teas...

, Zantedeschia aethiopica

Zantedeschia aethiopica

Zantedeschia aethiopica ; syn. Calla aethiopica L., Richardia africana Kunth, Richardia aethiopica Spreng., Colocasia aethiopica Spreng...

and Parthenocissus tricuspidata

Parthenocissus tricuspidata

Parthenocissus tricuspidata is a flowering plant in the grape family native to eastern Asia in Japan, Korea, and northern and eastern China...

in Japan, Impatiens balsamina

Impatiens balsamina

Impatiens balsamina is a species of Impatiens native to southern Asia in India and Myanmar.It is called kamantigue in the Philippines. This species of Kalamantigue are used in teas...

and Galium verum var. asiaticum

Galium verum

Galium verum is a herbaceous perennial plant of the family Rubiaceae, native to Europe and Asia. It is a low scrambling plant, with the stems growing to long, frequently rooting where they touch the ground. The leaves are long and broad, shiny dark green, hairy underneath, borne in whorls of 8–12...

in Korea, Vitis amurensis

Vitis amurensis

Vitis amurensis, the Amur grape, is a species of grape native to the Asian continent. Its name comes from the Amur Valley in Russia and China.It is very resistant to frost, but is not tolerant to drought...

in the Russian Far East and Cissus

Cissus

Cissus is a genus of approximately 350 species of woody vines in the grape family . They have a cosmopolitan distribution, though the majority are to be found in the tropics. In Tamil they are known as pirandai .-Medicinal:...

, Damnacanthus, Galium

Galium

Galium is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, with 617 known species occurring in the temperate zones of both the Northern and Southern Hemispheres. Most species are known as bedstraw. G...

, Oenothera

Oenothera

Oenothera is a Genus of about 125 species of annual, biennial and perennial herbaceous flowering plants, native to North and South America. It is the type genus of the family Onagraceae, the Evening Primrose Family. Common names include evening-primrose, suncups, and sundrops.The species vary in...

and Parthenocissus

Parthenocissus

Parthenocissus , creepers, is a genus of climbing plants from the grape family, Vitaceae. It contains about 12 species, from Asia and North America. Several are grown for ornamental use....

elsewhere.