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Sycamore Tussock Moth
''Halysidota harrisii'', the sycamore tiger moth, is a moth of the family Erebidae and the tribe Arctiini, the tiger moths. The species was first described by Benjamin Dann Walsh in 1864. It is found in southeastern Canada, the eastern parts of the United States, and northeastern Mexico. Description The larvae have yellow-orange heads and bodies covered with hair, and they can grow to approximately 25–35 mm in length. They exhibit two pairs of long, orange hair-pencils and two pairs of white hair-pencils towards the front of their body. They also exhibit one pair of white hair-pencils near the back of their body. The adults are pale yellow with dark bands on the forewings. Each forewing is 24–26 mm in length, making the wingspan approximately 50 mm. As adults, they are almost indistinguishable from the closely related '' Halysidota tesselaris''. Life cycle The sycamore tiger moth produces two generations each year. Moths emerge from overwintering cocoons f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Dann Walsh
Benjamin Dann Walsh (September 21, 1808 – November 18, 1869) was an English-born American entomologist who served as the first official state entomologist in Illinois.Mallis (1971) He was a leading influence during a time of significant transition in American entomology. Walsh championed the application of scientific methods to control agricultural pests. He was a proponent of biological control as an effective means to manage insects. He was also one of the first American scientists to support Charles Darwin's theory of evolution and was instrumental in securing its broad acceptance in the entomological community. Biography Walsh was born in Hackney Central, Hackney, which was then a small village outside of London. The son of Benjamin Walsh (politician), Benjamin Walsh and Mary Bidwell Clarke, he was the fifth of thirteen children.Sheppard (2004) When Walsh was a boy, his father, a member of parliament, was charged with embezzlement and caught attempting to flee to Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halysidota Tessellaris
''Halysidota tessellaris'', also called the pale tiger moth, banded tussock moth, and tessellated halisidota, is in the family Erebidae and the tribe Arctiini, the tiger moths. The species was first described by James Edward Smith in 1797. Like many related species, adult moths have chemical defenses acquired from its host plants, in this case, alkaloids. Larval behaviors suggest that they are chemically protected; they have not been analyzed for alkaloid content. Range This moth is found in North America from southern Canada south through Texas and central Florida. Life cycle One generation per year occurs in the north, and two or more occur in the south. Egg Eggs are laid in masses on the undersides of leaves. Larva Caterpillars are covered with long setae, in tufts. They vary from yellowish and orange through dark gray. Extra long hair-pencils of white, black, and/or orange occur at both the front and rear of a caterpillar. Larval head capsules are bright orange. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moths Of North America
Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, but there are also crepuscular and diurnal species. Differences between butterflies and moths While the butterflies form a monophyletic group, the moths, comprising the rest of the Lepidoptera, do not. Many attempts have been made to group the superfamilies of the Lepidoptera into natural groups, most of which fail because one of the two groups is not monophyletic: Microlepidoptera and Macrolepidoptera, Heterocera and Rhopalocera, Jugatae and Frenatae, Monotrysia and Ditrysia.Scoble, MJ 1995. The Lepidoptera: Form, function and diversity. Oxford, UK: Oxford University Press; 404 p. Although the rules for distinguishing moths from butterflies are not well esta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halysidota
''Halysidota'' is a genus of moths in the family Erebidae. The genus was erected by Jacob Hübner in 1819. Species * '' Halysidota ata'' Watson, 1980 * ''Halysidota atra'' Druce, 1884 * '' Halysidota baritioides'' Rothschild, 1909 * '' Halysidota brasiliensis'' Rothschild, 1909 * ''Halysidota cinctipes'' Grote, 1865 – Florida tussock moth * '' Halysidota conflua'' Watson, 1980 * ''Halysidota davisii'' H. Edwards, 1874 – Davis' tussock moth * '' Halysidota donahuei'' Watson, 1980 * '' Halysidota elota'' (Möschler, 1886) * '' Halysidota eudolobata'' Hampson, 1901 * '' Halysidota fuliginosa'' Rothschild, 1909 * ''Halysidota fumosa'' Schaus, 1912 * '' Halysidota grata'' Walker, 1866 * ''Halysidota harrisii'' Walsh, 1864 – sycamore tussock moth * ''Halysidota instabilis'' Dyar, 1912 * ''Halysidota insularis'' Rothschild, 1909 * ''Halysidota intensa'' Rothschild, 1909 * ''Halysidota interlineata'' Walker, 1855 * ''Halysidota interstriata'' (Hampson, 1901) * ''Halysid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hives
Hives, also known as urticaria, is a kind of skin rash with red, raised, itchy bumps. Hives may burn or sting. The patches of rash may appear on different body parts, with variable duration from minutes to days, and does not leave any long-lasting skin change. Fewer than 5% of cases last for more than six weeks. The condition frequently recurs. Hives frequently occur following an infection or as a result of an allergic reaction such as to medication, insect bites, or food. Psychological stress, cold temperature, or vibration may also be a trigger. In half of cases the cause remains unknown. Risk factors include having conditions such as hay fever or asthma. Diagnosis is typically based on the appearance. Patch testing may be useful to determine the allergy. Prevention is by avoiding whatever it is that causes the condition. Treatment is typically with antihistamines such as diphenhydramine and cetirizine. In severe cases, corticosteroids or leukotriene inhibitors may a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overpopulation
Overpopulation or overabundance is a phenomenon in which a species' population becomes larger than the carrying capacity of its environment. This may be caused by increased birth rates, lowered mortality rates, reduced predation or large scale migration, leading to an overabundant species and other animals in the ecosystem competing for food, space, and resources. The animals in an overpopulated area may then be forced to migrate to areas not typically inhabited, or die off without access to necessary resources. Judgements regarding overpopulation always involve both facts and values. Animals often are judged overpopulated when their numbers cause impacts that people find dangerous, damaging, expensive, or otherwise harmful. Societies may be judged overpopulated when their human numbers cause impacts that degrade ecosystem services, decrease human health and well-being, or crowed other species out of existence. Background In ecology, overpopulation is a concept used primaril ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halysidota Harrisii Larva
''Halysidota'' is a genus of moths in the family Erebidae. The genus was erected by Jacob Hübner in 1819. Species * '' Halysidota ata'' Watson, 1980 * ''Halysidota atra'' Druce, 1884 * '' Halysidota baritioides'' Rothschild, 1909 * '' Halysidota brasiliensis'' Rothschild, 1909 * ''Halysidota cinctipes'' Grote, 1865 – Florida tussock moth * '' Halysidota conflua'' Watson, 1980 * ''Halysidota davisii'' H. Edwards, 1874 – Davis' tussock moth * '' Halysidota donahuei'' Watson, 1980 * '' Halysidota elota'' (Möschler, 1886) * '' Halysidota eudolobata'' Hampson, 1901 * '' Halysidota fuliginosa'' Rothschild, 1909 * ''Halysidota fumosa'' Schaus, 1912 * '' Halysidota grata'' Walker, 1866 * ''Halysidota harrisii'' Walsh, 1864 – sycamore tussock moth * '' Halysidota instabilis'' Dyar, 1912 * ''Halysidota insularis'' Rothschild, 1909 * ''Halysidota intensa'' Rothschild, 1909 * ''Halysidota interlineata'' Walker, 1855 * ''Halysidota interstriata'' (Hampson, 1901) * ''Halysid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platanus Occidentalis
''Platanus occidentalis'', also known as American sycamore, American planetree, western plane, occidental plane, buttonwood, and water beech, is a species of ''Platanus'' native to the eastern and central United States, the mountains of northeastern Mexico, extreme southern Ontario, and possibly extreme southern Quebec. It is usually called sycamore in North America, a name which can refer to other types of trees in other parts of the world. The American sycamore is a long-lived species, typically surviving at least 200 years and likely as long as 500–600 years. The species epithet ''occidentalis'' is Latin for "western", referring to the Western Hemisphere, because at the time when it was named by Carl Linnaeus, the only other species in the genus was ''Platanus orientalis, P. orientalis'' ("eastern"), native to the Eastern Hemisphere. Description An American sycamore tree can often be easily distinguished from other trees by its mottled bark which flakes off in large irregul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingspan
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of , the official record for a living bird. The term wingspan, more technically extent, is also used for other winged animals such as pterosaurs, bats, insects, etc., and other aircraft such as ornithopters. In humans, the term wingspan also refers to the arm span, which is distance between the length from one end of an individual's arms (measured at the fingertips) to the other when raised parallel to the ground at shoulder height at a 90º angle. Former professional basketball player Manute Bol stood at and owned one of the largest wingspans at . Wingspan of aircraft The wingspan of an aircraft is always measured in a straight line, from wingtip to wingtip, independently of wing shape or sweep. Implications for aircraft design an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sycamore Tussock Moth (Halysidota Harrisii)
''Halysidota harrisii'', the sycamore tiger moth, is a moth of the family Erebidae and the tribe Arctiini, the tiger moths. The species was first described by Benjamin Dann Walsh in 1864. It is found in southeastern Canada, the eastern parts of the United States, and northeastern Mexico. Description The larvae have yellow-orange heads and bodies covered with hair, and they can grow to approximately 25–35 mm in length. They exhibit two pairs of long, orange hair-pencils and two pairs of white hair-pencils towards the front of their body. They also exhibit one pair of white hair-pencils near the back of their body. The adults are pale yellow with dark bands on the forewings. Each forewing is 24–26 mm in length, making the wingspan approximately 50 mm. As adults, they are almost indistinguishable from the closely related '' Halysidota tesselaris''. Life cycle The sycamore tiger moth produces two generations each year. Moths emerge from overwintering cocoons f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hair-pencil
Hair-pencils and coremata are pheromone signaling structures present in lepidopteran males. Males use hair-pencils in courtship behaviors with females. The pheromones they excrete serve as both aphrodisiacs and tranquilizers to females as well as repellents to conspecific males.Hillier, N., & Vickers, N. (2004). The Role of Heliothine Hair-pencil Compounds in Female Heliothis virescens (Lepidoptera: Noctuidae) Behavior and Mate Acceptance. ''Chemical Senses'', 6 (29), 499-511. Hair-pencil glands are stored inside the male until courtship begins, at which point they are forced out of the body by sclerotized levers present on the abdomen.Birch, M. C., & Poppy, G. M. (1990). Scents and Eversible Scent Structures of Male Moths. ''Annual review of Entomology'' (35), 25-58. Coremata (the singular form being corema) are very similar structures. Their exact definition is confused by early descriptions but they are more specifically defined as the internal, glandular, eversible structur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico '' The World Factbook''. . making it the world's 13th-largest country by area; with approximately 12 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
