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Hamadryas Glauconome
''Hamadryas glauconome'', the pale cracker or glaucous cracker, is a species of cracker butterfly in the family Nymphalidae. It was described by Henry Walter Bates in 1864 and is found in Mexico, Central America and south to Peru. It has been recorded as an unexpected vagrant in the United States in southern Florida, Arizona and Texas. Description Adults have wings mottled in grey, brown and white. They are very similar in appearance to the grey cracker (''Hamadryas februa'') and like them have small, submarginal eyespots on the underside of the hindwings that incorporate some orange scales; these are the only two members of the genus to have orange eyespot scales. The pale cracker differs from the grey cracker in lacking a small red bar on the forewing. Distribution and habitat The pale cracker is native to Mexico, Central America and South America as far south as Guatemala and Peru. It has been recorded as a vagrant in the United States, in southeastern Arizona (rare stra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Walter Bates
Henry Walter Bates (8 February 1825, in Leicester – 16 February 1892, in London) was an English naturalist and explorer who gave the first scientific account of mimicry in animals. He was most famous for his expedition to the rainforests of the Amazon with Alfred Russel Wallace, starting in 1848. Wallace returned in 1852, but lost his collection on the return voyage when his ship caught fire. When Bates arrived home in 1859 after a full eleven years, he had sent back over 14,712 species (mostly of insects) of which 8,000 were (according to Bates, but see Van Wyhe) new to science. Bates wrote up his findings in his best-known work, ''The Naturalist on the River Amazons''. Life Bates was born in Leicester to a literate middle-class family. However, like Wallace, T.H. Huxley and Herbert Spencer, he had a normal education to the age of about 13 when he became apprenticed to a hosiery manufacturer. He joined the Mechanics' Institute (which had a library), studied in his spare t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stanford University Press
Stanford University Press (SUP) is the publishing house of Stanford University. It is one of the oldest academic presses in the United States and the first university press to be established on the West Coast. It was among the presses officially admitted to the Association of American University Presses (now the Association of University Presses) at the organization's founding, in 1937, and is one of twenty-two current member presses from that original group. The press publishes 130 books per year across the humanities, social sciences, and business, and has more than 3,500 titles in print. History David Starr Jordan, the first president of Stanford University, posited four propositions to Leland and Jane Stanford when accepting the post, the last of which stipulated, “That provision be made for the publication of the results of any important research on the part of professors, or advanced students. Such papers may be issued from time to time as ‘Memoirs of the Leland Stanf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymphalidae Of South America
The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily Papilionoidea, they are usually medium-sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called brush-footed butterflies or four-footed butterflies, because they are known to stand on only four legs while the other two are curled up; in some species, these forelegs have a brush-like set of hairs, which gives this family its other common name. Many species are brightly coloured and include popular species such as the emperors, monarch butterfly, admirals, tortoiseshells, and fritillaries. However, the under wings are, in contrast, often dull and in some species look remarkably like dead leaves, or are much paler, producing a cryptic effect that helps the butterflies blend into their surroundings. Nomenclature Rafinesque introduced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterflies Of Central America
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamily Papilionoidea, which contains at least one former group, the skippers (formerly the superfamily "Hesperioidea"), and the most recent analyses suggest it also contains the moth-butterflies (formerly the superfamily "Hedyloidea"). Butterfly fossils date to the Paleocene, about 56 million years ago. Butterflies have a four-stage life cycle, as like most insects they undergo complete metamorphosis. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. The caterpillars grow, sometimes very rapidly, and when fully developed, pupate in a chrysalis. When metamorphosis is complete, the pupal skin splits, the adult insect climbs out, and after its wings have expanded and dried, it fli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterflies Of North America
This list contains links to lists with the common and scientific names of butterflies of North America north of Mexico. * Papilionidae: swallowtails and parnassians (40 species) ** Parnassiinae: parnassians (3 species) ** Papilioninae: swallowtails (37 species) * Hesperiidae: skippers (300 species) ** Pyrrhopyginae: firetips (1 species) ** Pyrginae: spread-wing skippers (138 species) ** Heteropterinae: skipperlings (7 species) ** Hesperiinae: grass skippers (141 species) ** Megathyminae: giant-skippers (13 species) * Pieridae: whites and sulphurs (70 species) ** Pierinae: whites (29 species) ** Coliadinae: sulphurs (40 species) ** Dismorphiinae: mimic-whites (1 species) * Lycaenidae: gossamer-wings (144 species) ** Miletinae: harvesters (1 species) ** Lycaeninae: coppers (16 species) ** Theclinae: hairstreaks (90 species) ** Polyommatinae: blues (37 species) * Riodinidae: metalmarks (28 species) * Nymphalidae: brush-footed butterflies (233 species) ** Libytheinae: snou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalechampia Scandens
''Dalechampia'' is a genus of plant of the family Euphorbiaceae and of the monogeneric subtribe Dalechampiinae. It is widespread across lowland tropical areas (generally below 2,000 m ASL) primarily in the Americas with smaller numbers of species in Africa, Madagascar, and southern Asia. Additional new species are still being described and several are very rare and at risk of extinction. ''Dalechampia'' has unisexual flowers that are secondarily united into bisexual blossoms (pseudanthia), which act as the pollination units. The pollination and floral evolution of this genus have been studied more intensively than perhaps any other member of the euphorbia family. In the neotropics (Americas), most species are pollinated by resin-collecting female bees, including euglossine bees and ''Hypanthidium'' of the Megachilidae, which use resin in nest construction. About a dozen neotropical species (including ''D. spathulata'', shown below) are pollinated by fragrance-collecting male eugl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbiaceae
Euphorbiaceae, the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of a genus in the family. Most spurges, such as ''Euphorbia paralias'', are herbs, but some, especially in the tropics, are shrubs or trees, such as ''Hevea brasiliensis''. Some, such as ''Euphorbia canariensis'', are succulent and resemble cacti because of convergent evolution. This family has a cosmopolitan global distribution. The greatest diversity of species is in the tropics, however, the Euphorbiaceae also have many species in nontropical areas of all continents except Antarctica. Description The leaves are alternate, seldom opposite, with stipules. They are mainly simple, but where compound, are always palmate, never pinnate. Stipules may be reduced to hairs, glands, or spines, or in succulent species are sometimes absent. The plants can be monoecious or dioecious. The radially symmetrical flowers are unisexual, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yale University Press
Yale University Press is the university press of Yale University. It was founded in 1908 by George Parmly Day, and became an official department of Yale University in 1961, but it remains financially and operationally autonomous. , Yale University Press publishes approximately 300 new hardcover and 150 new paperback books annually and has a backlist of about 5,000 books in print. Its books have won five National Book Awards, two National Book Critics Circle Awards and eight Pulitzer Prizes. The press maintains offices in New Haven, Connecticut and London, England. Yale is the only American university press with a full-scale publishing operation in Europe. It was a co-founder of the distributor TriLiteral LLC with MIT Press and Harvard University Press. TriLiteral was sold to LSC Communications in 2018. Series and publishing programs Yale Series of Younger Poets Since its inception in 1919, the Yale Series of Younger Poets Competition has published the first collection of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vagrancy (biology)
Vagrancy is a phenomenon in biology whereby an individual animal (usually a bird) appears well outside its normal range (biology), range; they are known as vagrants. The term accidental is sometimes also used. There are a number of poorly understood factors which might cause an animal to become a vagrant, including internal causes such as navigatory errors (endogenous vagrancy) and external causes such as severe weather (exogenous vagrancy). Vagrancy events may lead to colonisation and eventually to speciation. Birds In the Northern Hemisphere, adult birds (possibly inexperienced younger adults) of many species are known to continue past their normal breeding range during their spring migration and end up in areas further north (such birds are termed spring overshoots). In autumn, some young birds, instead of heading to their usual wintering grounds, take "incorrect" courses and migrate through areas which are not on their normal migration path. For example, Siberian passeri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamadryas (butterfly)
Cracker butterflies are a Neotropical group of medium-sized brush-footed butterfly species of the genus ''Hamadryas''. They acquired their common name due to the unusual way that males produce a "cracking" sound as part of their territoriality, territorial displays. The most comprehensive work about their ecology and behavior is that of Julian Monge Najera et al. (1998). The genus was erected by Jacob Hübner in 1806. Description Cracker butterflies are all fairly crypsis, cryptic in their dorsal coloration, commonly covered in varying colored spots, most of which resemble bark; some are known to have little coloration, such as the ''Hamadryas februa''. Distribution and habitat This genus of butterflies are commonly found throughout South America to Arizona, where at least nine species can be found in Costa Rica. (2007). ''Butterflies of Southern Amazonia''. Neotropical Butterflies, Mission, Texas. (2004): ''Atlas of Neotropical Lepidoptera'' (Checklist Part 4A. Hesperioidea-Papi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eyespot (mimicry)
An eyespot (sometimes ocellus) is an eye-like marking. They are found in butterflies, reptiles, cats, birds and fish. Eyespots could be explained in at least three different ways. They may be a form of mimicry in which a spot on the body of an animal resembles an eye of a different animal, to deceive potential predator or prey species. They may be a form of self-mimicry, to draw a predator's attention away from the prey's most vulnerable body parts. Or they may serve to make the prey appear inedible or dangerous. Eyespot markings may play a role in intraspecies communication or courtship; the best-known example is probably the eyespots on a peacock's display feathers. The pattern-forming biological process (morphogenesis) of eyespots in a wide variety of animals is controlled by a small number of genes active in embryonic development, including the genes called Engrailed, Distal-less, Hedgehog, Antennapedia, and the Notch signaling pathway. Artificial eyespots have been sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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