Alpine Butterfly (other)
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Alpine Butterfly (other)
Alpine butterfly may refer to: Biology * ''Erebia'', a genus of butterflies common in the Rocky Mountains of North America * ''Parnassius'', a genus of butterflies in Eurasia Knots * Alpine butterfly knot The butterfly loop, also known as lineman's loop, butterfly knot, alpine butterfly knot, Swiss loop and lineman's rider, is a knot used to form a fixed loop in the middle of a rope. Tied in the bight, it can be made in a rope without access to ei ..., used to form a fixed loop in the middle of a rope * Alpine butterfly bend, used to join the ends of two ropes together {{disambiguation ...
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Erebia
''Erebia'' is a Holarctic genus of brush-footed butterflies, family Nymphalidae. Most of the about 90–100 species (see also below) are dark brown or black in color, with reddish-brown to orange or more rarely yellowish wing blotches or bands. These usually bear black spots within, which sometimes have white center spots. This genus has found it easy to adapt to arid and especially cold conditions. Most of its members are associated with high-altitude lands, forest clearings or high latitude and tundra. ''Erebia'' species are frequent in the Alps, Rocky Mountains, subarctic and even Arctic regions, and the cooler parts of Central Asia. In fact, the North American term for these butterflies is alpines. Palearctic species are collectively known as ringlets or arguses. However, none of these terms is used exclusively for this genus. Taxonomy and systematics The genus ''Erebia'' was erected by Johan Wilhelm Dalman in 1816. As type species, the Arran brown—described as ''Pa ...
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Parnassius
''Parnassius'' is a genus of northern circumpolar and montane (alpine and Himalayan) butterflies usually known as Apollos or snow Apollos. They can vary in colour and form significantly based on their altitude. They also show an adaptation to high altitudes called altitudinal melanism. They show dark bodies and darkened colouration at the wingbase which helps them warm faster using the sun. Although classified under the swallowtail butterfly family, none of the ''Parnassius'' species possesses tails. The larvae feed on species of plants belonging to the Papaveraceae and Crassulaceae families, and like the other swallowtail butterfly larvae, possess an osmeterium. Unlike most butterflies that have exposed pupae, they pupate inside a loose silken cocoon. Identification and ecology ''Parnassius'' species of butterflies are often hard to identify and can sometimes only be identified by dissection of the genitalia. The phylogeny of the group is still under study using molecular ...
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Alpine Butterfly Knot
The butterfly loop, also known as lineman's loop, butterfly knot, alpine butterfly knot, Swiss loop and lineman's rider, is a knot used to form a fixed loop in the middle of a rope. Tied in the bight, it can be made in a rope without access to either of the ends; this is a distinct advantage when working with long climbing ropes. The butterfly loop is an excellent mid-line rigging knot; it handles multi-directional loading well and has a symmetrical shape that makes it easy to inspect. In a climbing context it is also useful for traverse lines, some anchors, shortening rope slings, and for isolating damaged sections of rope. History The earliest known presentation of the knot was in A.A. Burger's 1914 work ''Rope and Its Uses'', included in an agricultural extension bulletin from what is now Iowa State University. Burger called the knot a lineman's rider stating it was often used by "linemen and especially telephone men". The knot's security and ability to withstand tensio ...
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