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| Siderone syntyche , figures 4 and 5 from Hewitson's Illustrations of New Species of Exotic Butterflies | |
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| Genus: | Siderone Hübner, [1823] |
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Siderone is a Neotropical nymphalid butterfly genus in the subfamily Charaxinae.
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Nemesis is a Greek mythological spirit of divine retribution against those who succumb to hubris. Nemesis may also refer to:
In ancient Greek religion, Nemesis, also called Rhamnousia or Rhamnusia, is the goddess who enacts retribution against those who succumb to hubris, arrogance before the gods.
Nemesis is a hypothetical red dwarf or brown dwarf, originally postulated in 1984 to be orbiting the Sun at a distance of about 95,000 AU, somewhat beyond the Oort cloud, to explain a perceived cycle of mass extinctions in the geological record, which seem to occur more often at intervals of 26 million years. As of 2012, more than 1800 brown dwarfs have been identified. There are actually fewer brown dwarfs in our cosmic neighborhood than previously thought. Rather than one star for every brown dwarf, there may be as many as six stars for every brown dwarf. The majority of solar-type stars are single. The previous idea stated half or perhaps most stellar systems were binary, trinary, or multiple-star systems associated with clusters of stars, rather than the single-star systems that tend to be seen most often. In a 2017 paper, Sarah Sadavoy and Steven Stahler argued that the Sun was likely part of a binary system at the time of its formation, leading them to suggest "there probably was a Nemesis, a long time ago". Such a star would have separated from this binary system over four billion years ago, meaning it could not be responsible for the more recent perceived cycle of mass extinctions, Douglas Vakoch told Business Insider, adding that "If the sun really was part of a binary star system in its early days, its early twin deserves a benign name like Companion, rather than the threatening Nemesis."
Nemesis is a science fiction novel by American writer Isaac Asimov. One of his later science fiction novels, it was published in 1989, three years before his death. The novel is loosely related to the future history of his Robot Series, Empire Series, and Foundation Series, into which Asimov attempted to integrate his science fiction output. This novel is connected to Asimov's other works by several ideas from earlier and later novels, including non-human intelligence, sentient astronomical bodies (Erythro), and rotor engines.
Anaea aidea, the tropical leafwing, is a species of brush-footed butterfly in the subfamily Charaxinae. Its native range extends from Mexico to northwestern Costa Rica, with strays sometimes seen in southern Texas, Arizona, and California in the United States. Some authors consider Anaea aidea to be a subspecies of Anaea troglodyta.
Anaeini is a tribe of Neotropical brush-footed butterflies. Their wing undersides usually mimic dead leaves.
Consul, described by Pieter Cramer in 1776, is a South American nymphalid butterfly genus in the subfamily Charaxinae.
Memphis, described by Jacob Hübner in 1819, is a Neotropical nymphalid butterfly genus in the subfamily Charaxinae.
Leafwing may refer to:
Anaea troglodyta, the Florida leafwing, Portia or Florida goatweed butterfly, is a butterfly of the family Nymphalidae. It is found in southern Florida and on many islands of the Caribbean. In Jamaica, it is known as the Jamaican tropical leafwing and in the Cayman Islands and Cuba it is known as the Cuban red leaf.
Hypna is a butterfly genus of the family Nymphalidae. It is monotypic, containing only Hypna clytemnestra, the jazzy leafwing, marbled leafwing or silver-studded leafwing.
Siderone galanthis, the scarlet leafwing or red-striped leafwing, is a species of butterfly of the family Nymphalidae. It is found from Mexico to southern Brazil. The habitat consists deciduous and evergreen forests at altitudes up to 900 meters.
Zaretis is a Neotropical nymphalid butterfly genus in the subfamily Charaxinae.
The Masquerade Cycle,, sometimes incorrectly referred to as the "Masques block", is a Magic: The Gathering cycle that is set on the planes of Mercadia, Rath, and plane of Dominaria. It consists of the expansion sets Mercadian Masques, Nemesis, and Prophecy. Mercadian Masques was the first set that is not subject to the Wizards of the Coast Reprint Policy, meaning that none of its cards appear on its Reserved List.
UNIT is a science fiction audio series produced by Big Finish Productions focused on the fictional military organisation of the same name, who investigate extra terrestrial threat. Members of UNIT include Kate Stewart, Sam Bishop and Josh Carter
Anaea andria, known generally as the goatweed leafwing or goatweed butterfly, is a species of leafwing in the butterfly family Nymphalidae. It is found in North America.
Memphis pithyusa, known generally as the pale-spotted leafwing or blue leafwing, is a species of leafwing in the butterfly family Nymphalidae. It is found in southern North America.