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Polygonia Gracilis
The hoary comma (''Polygonia gracilis'') is a species of butterfly, common in boreal North America from Alaska, across southern Canada to New England and the Maritime Provinces and south to New Mexico from the Rocky Mountains to the Pacific Ocean. The wings have a distinctive ragged edge. Adult butterflies feed on tree sap and nectar from sweet everlasting (''Gnaphalium'') as well as other flowers. Caterpillars feed on shrub leaves including currant (''Ribes''), western azalea (''Rhododendron occidentale'') and mock azalea (''Rhododendron menziesii''). The species survives the winter in the adult stage in diapause In animal dormancy, diapause is the delay in development in response to regular and recurring periods of adverse environmental conditions.Tauber, M.J., Tauber, C.A., Masaki, S. (1986) ''Seasonal Adaptations of Insects''. Oxford University Press I ... and mate and lay eggs in the spring. Butterflies emerge from their chrysalids in midsummer. References Exte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoary Comma (15237227779)
The hoary comma (''Polygonia gracilis'') is a species of butterfly, common in boreal North America from Alaska, across southern Canada to New England and the Maritime Provinces and south to New Mexico from the Rocky Mountains to the Pacific Ocean. The wings have a distinctive ragged edge. Adult butterflies feed on tree sap and nectar from sweet everlasting (''Gnaphalium'') as well as other flowers. Caterpillars feed on shrub leaves including currant (''Ribes''), western azalea (''Rhododendron occidentale'') and mock azalea (''Rhododendron menziesii''). The species survives the winter in the adult stage in diapause In animal dormancy, diapause is the delay in development in response to regular and recurring periods of adverse environmental conditions.Tauber, M.J., Tauber, C.A., Masaki, S. (1986) ''Seasonal Adaptations of Insects''. Oxford University Press It ... and mate and lay eggs in the spring. Butterflies emerge from their chrysalids in midsummer. References Extern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustus Radcliffe Grote
Augustus Radcliffe Grote (February 7, 1841 – September 12, 1903) was a British entomologist who described over 1,000 species of butterflies and moths.Osborn, H. 1937. Fragments of Entomological History. Columbus, OH: Published by the author. He is best known for his work on North American Noctuidae. A number of species were named after him, including the moth '' Horama grotei''. Early life and family Grote was born in Aigburth, a suburb of Liverpool, in 1841. His mother was English, and his maternal grandfather, Augustus Radcliffe, was a partner in the house of Sir Joseph Bailey. Grote was a first cousin on his mother's side to Ethel Romanes. Grote's father was born in Danzig, and his paternal lineage traced back to Dutch philosopher Hugo Grotius. His family name was changed from 'Grohté' to 'Grote' when his father became an English citizen. Augustus Grote came to New York at age 7, one year after his parents had moved there from England, and spent his youth on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coleman Townsend Robinson
Coleman Townsend Robinson (12 January 1838 – 1 May 1872) was an American entomologist who specialised in Lepidoptera. He wrote Grote, A.R., & Robinson, C.T. 1867–1868. Descriptions of American Lepidoptera – Nos 1–3. ''Transactions of the American Entomological Society'' 1(1): 1–30; (2): 171–192, pl. 4; (4): 323–360, pl. 6, pl. 7 with Augustus Radcliffe Grote Augustus Radcliffe Grote (February 7, 1841 – September 12, 1903) was a British entomologist who described over 1,000 species of butterflies and moths.Osborn, H. 1937. Fragments of Entomological History. Columbus, OH: Published by the author .... References *Skinner, Henry (H.S.). Coleman T. Robinson. ''Entomological News'', Vol. 36 (1925), p. 309BHL*Coleman Townsend Robinson. Find a Grave. *Headrick, David; George Gordh (2003). ''A Dictionary of Entomology''. Wallingford, United Kingdom: CABI Publishing, 788. . American entomologists 1872 deaths 1838 births {{zoologist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterfly
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamily (zoology), 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 Holometabolism, 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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreal Ecosystem
A boreal ecosystem is an ecosystem with a subarctic climate located in the Northern Hemisphere, approximately between 50° to 70°N latitude. These ecosystems are commonly known as taiga and are located in parts of North America, Europe, and Asia. The ecosystems that lie immediately to the south of boreal zones are often called hemiboreal. There are a variety of processes and species that occur in these areas as well. The Köppen symbols of boreal ecosystems are Dfc, Dwc, Dfd, and Dwd. Boreal Species The species within boreal ecosystems varies as it consists of both terrestrial and aquatic habitats. The species composition include many generalized and less specialized feeders. From the equator to the poles, species richness decreases, and there is a negative relationship with species richness changes as climate changes. However, despite not being as biodiverse as tropical systems, this area has a variety of species. Boreal ecosystems are filled with a multitude of flora specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudognaphalium Obtusifolium
''Pseudognaphalium obtusifolium'' (formerly ''Gnaphalium obtusifolium'') is a member of the family Asteraceae, found on open dry sandy habitat throughout Eastern North America. Common names include old field balsam, rabbit tobacco and sweet everlasting. When crushed, the plant exudes a characteristic maple-syrup scent. Description It is a biennial herb which grows up to one meter tall. In its first year, the plant produces tightly packed rosettes covered in wooly hair. In the second year, the plant produces a tall stem with alternate leaves and yellow peg-shaped flowerheads. These are borne in clusters. The seeds are dispersed by the wind. Its native habitats include dry clearings, fields, and edges of woods. Uses by Native Americans Alabama tribe The Alabama tribe used a compound decoction of it as a treatment for nervousness and sleepiness,Swanton, John R 1928 Religious Beliefs and Medical Practices of the Creek Indians. SI-BAE Annual Report #42:473-672 (pp. 663, 664) and a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ribes
''Ribes'' is a genus of about 200 known species of flowering plants, most of them native to the temperate regions of the Northern Hemisphere. The various species are known as currants or gooseberries, and some are cultivated for their edible fruit or as ornamental plants. ''Ribes'' is the only genus in the family Grossulariaceae. Description ''Ribes'' species are medium shrublike plants with marked diversity in strikingly diverse flowers and fruit. They have either palmately lobed or compound leaves, and some have thorns. The sepals of the flowers are larger than the petals, and fuse into a tube or saucer shape. The ovary is inferior, maturing into a berry with many seeds. Taxonomy ''Ribes'' is the single genus in the Saxifragales family Grossulariaceae. Although once included in the broader circumscription of Saxifragaceae ''sensu lato'', it is now positioned as a sister group to Saxifragaceae ''sensu stricto''. Subdivision First treated on a worldwide basis in 1907, the in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Occidentale
''Rhododendron occidentale'', the western azalea or California azalea, is one of two deciduous ''Rhododendron'' species native to western North America (the other is ''Rhododendron albiflorum''). The western azalea is known to occur as far north as Lincoln and Douglas Counties in Oregon and as far south as the mountains of San Diego county. Typically found in the coastal ranges of western North America, it also grows in the Cascade and Sierra Nevada mountain ranges, but is not known east of them. Description ''Rhododendron occidentale'' is a shrub growing to 5 m tall. The leaves are deciduous, 3–9 cm long and 1–3 cm broad. The flowers are 3.5–5 cm diameter, with five lobes on the corolla; color varies from white to pink, often with a yellow blotch. There is considerable diversity in the form and appearance of this species, with genetic diversity seeming to reach its highest level along the coast in the vicinity of the border between Oregon and California. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Menziesii
''Rhododendron menziesii'', also classified as ''Menziesia ferruginea'', is a species of flowering plant in the heath family Ericaceae, known by several common names, including rusty menziesia, false huckleberry, fool's huckleberry and mock azalea. Description ''Rhododendron menziesii'' is a mostly erect or spreading shrub often exceeding in height, and reaching lower heights at higher elevations. Its branches are coated in thin, scaly, shreddy bark and its twigs with fine glandular hairs. The alternately arranged deciduous leaves are oval in shape with pointed tips, reaching 4 to 6 centimeters long. The leaves are hairy, glandular, and sticky in texture, and have an unpleasant skunklike odor when crushed. The inflorescence is a loose cluster of hanging bell- or cup-shaped flowers in shades of pink to orange to yellow-green. The flower has 4 to 5 petals which are mostly fused into a cylinder, and eight stamens inside. The bloom period is June and July. The fruit is a valved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diapause
In animal dormancy, diapause is the delay in development in response to regular and recurring periods of adverse environmental conditions.Tauber, M.J., Tauber, C.A., Masaki, S. (1986) ''Seasonal Adaptations of Insects''. Oxford University Press It is a physiological state with very specific initiating and inhibiting conditions. The mechanism is a means of surviving predictable, unfavorable environmental conditions, such as temperature extremes, drought, or reduced food availability. Diapause is observed in all the life stages of arthropods, especially insects. Embryonic diapause, a somewhat similar phenomenon, occurs in over 130 species of mammals, possibly even in humans, and in the embryos of many of the oviparous species of fish in the order Cyprinodontiformes. Activity levels of diapausing stages can vary considerably among species. Diapause may occur in a completely immobile stage, such as the pupae and eggs, or it may occur in very active stages that undergo extensive migrat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pupa
A pupa ( la, pupa, "doll"; plural: ''pupae'') is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages thereof being egg, larva, pupa, and imago. The processes of entering and completing the pupal stage are controlled by the insect's hormones, especially juvenile hormone, prothoracicotropic hormone, and ecdysone. The act of becoming a pupa is called pupation, and the act of emerging from the pupal case is called eclosion or emergence. The pupae of different groups of insects have different names such as ''chrysalis'' for the pupae of butterflies and ''tumbler'' for those of the mosquito family. Pupae may further be enclosed in other structures such as cocoons, nests, or shells. Position in life cycle The pupal stage follows the larval stage and precedes adulthood (''imago'') in insects with complete metamorphosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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