The Treaty of Aigun was an 1858 treaty between the Russian Empire and Yishan, official of the Qing dynasty of China. It established much of the modern border between the Russian Far East and China by ceding much of Manchuria, now known as Northeast China. Negotiations began after China was threatened with war on a second front by Governor-General of the Far East Nikolay Muraviev when China was suppressing the Taiping Rebellion. It reversed the Treaty of Nerchinsk (1689) by transferring the land between the Stanovoy Range and the Amur River from the Qing dynasty to the Russian Empire. Russia received over 600,000 square kilometers (231,660 sq mi) of what became known as Outer Manchuria. While the Qing government initially refused to recognize the validity of the treaty, the Russian gains under the Treaty of Aigun was affirmed as part of the 1860 Sino-Russian Convention of Peking.
Outer Manchuria, sometimes called Russian Manchuria, refers to a region in Northeast Asia that is now part of the Russian Far East but historically formed part of Manchuria. While Manchuria now more normatively refers to Northeast China, it originally included areas consisting of Priamurye between the left bank of Amur River and the Stanovoy Range to the north, and Primorskaya which covered the area in the right bank of both Ussuri River and the lower Amur River to the Pacific Coast. The region was ruled by a series of Chinese dynasties and the Mongol Empire, but control of the area was ceded to the Russian Empire by the Qing China during the Amur Annexation in the 1858 Treaty of Aigun and 1860 Treaty of Peking, with the terms "Outer Manchuria" and "Russian Manchuria" arising after the Russian annexation. The same general area became known as Green Ukraine after a large number of settlers from Ukraine came to the region.
The Amur Cossack Host was a Cossack host created in the Amur region and Primorye in the 1850s on the basis of the Cossacks relocated from the Transbaikal region and freed miners of Nerchinsk region.
Ussuri Cossack Host was a Cossack Host in Imperial Russia, located in Primorye south of Khabarovsk along the Ussuri River, the Sungari River, and around the Khanka Lake.
Primorskaya Oblast was an administrative division of the Russian Empire and the early Russian SFSR, created on October 31, 1856 by the Governing Senate. The name of the region literally means "Maritime" or "Coastal." The region was established upon a Russian conquest of Daur people that used to live along Amur River. Before the Russian conquest of Russian Manchuria, the territory belonged to the Chinese region of Manchuria.
Plebejus is a genus of butterflies in the family Lycaenidae. Its species are found in the Palearctic and Nearctic realms.
Gonepteryx is a genus of butterflies in the family Pieridae; there are about 15 species of Gonepteryx. They live in Europe, Asia, and Northern Africa. They are commonly known as brimstones for the bright yellow colour of the wings of most species. These share the same name as the much larger tropical genus Anteos. These inhabit much of central and South America and also North America. This species are known for being the kings of butterfly longevity. 10–13 months is the lifespan for many temperate species. Anteos, however, is much shorter lived. The adults will often mimic ivy leaves at rest. Male brimstone butterflies can withstand cooler temperatures and are able to fly after just 4 months in hibernation. Female brimstone butterflies need warmer climates to survive, and therefore are in hibernation longer. The male butterflies have a longer life span as they are more resilient to a wider range of temperatures, unlike the female.
Paracolax is a genus of litter moths of the family Erebidae. The genus was erected by Jacob Hübner in 1825.
The Ussuri brown bear, also known as the Ezo brown bear, Russian grizzly bear, or the black grizzly bear, is a subspecies of the brown bear or a population of the Eurasian brown bear. One of the largest brown bears, a very large Ussuri brown bear may approach the Kodiak bear in size. It is not to be confused with the North American grizzly bear.
Xestia kollari is a moth of the family Noctuidae. It is known from the southern Urals to the Amur Region, northern Mongolia, Korea, Japan as well as from China, Ussuri and Kamchatka.
Euphydryas sibirica is a butterfly of the family Nymphalidae. It is found in north-eastern Asia, where it is found in steppe or steppe-like meadows.
Elophila turbata is a moth in the family Crambidae found in Africa and Asia. It was first described by the English entomologist Arthur Gardiner Butler in 1881 from a specimen found in Yokohama, Japan.
Mocis annetta is a species of moth of the family Erebidae. It is found in Russia, China (Shaanxi), Korea, Taiwan and Japan.
Khingan Nature Reserve is a Russian 'zapovednik', located in the extreme south-east of the Amur River region of the Russian Far East. The reserve covers two types of habitat: the flat Arkharinskaya lowlands with abundant wetlands, and forested spurs of the Lesser Khingan mountains. In particular, Khingan Reserve was created to protect steppe and forest-steppe landscapes, and nesting sites of the endangered Red-crowned crane and the vulnerable White-naped crane. The reserve is situated in the Arkharinsky District of Amur Oblast.
Bolshekhekhtsirsky Nature Reserve is a Russian 'zapovednik' covering and named for the Big Khekhtsir Ridge, about 20 km south of the city of Khabarovsk, in the Russian Far East. The area is noteworthy for its position - close to a city and relatively open to public hikers on certain trails - and for being an island of mountain-forest biodiversity surrounded by lower river floodplains. The reserve is situated in the Khabarovsk Krai. The reserve was created in 1963, and covers an area of 45,439 ha (175.44 sq mi).
Thymelicus leonina is a small butterfly found in the East Palearctic that belongs to the skippers family.
