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Rhodnius
''Rhodnius'' is a genus of assassin bugs in the subfamily Triatominae (the kissing bugs), and is an important vector in the spread of Chagas disease. The ''Rhodnius'' species were important models for Sir Vincent Wigglesworth's studies of insect physiology, specifically growth and development. Species *''Rhodnius amazonicus'' Almeida, Santos & Sposina, 1973 *''Rhodnius brethesi'' Matta, 1919 (Tc) *''Rhodnius colombiensis'' Moreno Mejía, Galvão & Jurberg, 1999 *''Rhodnius dalessandroi'' Carcavallo & Barreto, 1976 *''Rhodnius domesticus'' Neiva & Pinto, 1923 (Tc) *''Rhodnius ecuadoriensis'' Lent & León, 1958 (Tc) *''Rhodnius milesi'' Carcavallo, Rocha, Galvão, Jurberg, 2001 *'' Rhodnius nasutus'' Stål, 1859 (Tc) *'' Rhodnius neglectus'' Lent, 1954 (Tc) *''Rhodnius neivai'' Lent, 1953 *'' Rhodnius pallescens'' Barber, 1932 (Tc) (principal vector in Panama). *''Rhodnius paraensis'' Sherlock, Guitton & Miles, 1977 (Tc) *''Rhodnius pictipes'' Stål, 1872 (Tc) *''Rhodnius prolixus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodnius Nasutus
''Rhodnius nasutus'' ''Rhodnius nasutus'' is a Chagas disease vector native to the northeast of Brazil. It belongs to the family Reduviidae and subfamily Triatominae, which are commonly known as kissing bugs or assassin bugs. They are considered a highly important species concerning the infectious Chagas disease as they carry a parasite called Trypanosoma cruzi, that can be transmitted to the blood of mammals, including humans. This disease is an important issue in Brazil and central America due to the large number of ''Rhodnius'' species inhabiting these areas, however in recent efforts to reduce human infection, multiple variations of pesticides have dramatically reduced Triatomine populations. Therefore, the understanding and knowledge of ''Rhodnius nasutus'' greatly benefits our efforts in reducing life threatening infections. Identification ''R. nasutus'' species are known for their chromatic pattern and range from red to chestnut-colored. These color differences have be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodnius Neglectus
''Rhodnius'' is a genus of assassin bugs in the subfamily Triatominae (the kissing bugs), and is an important vector in the spread of Chagas disease. The ''Rhodnius'' species were important models for Sir Vincent Wigglesworth's studies of insect physiology, specifically growth and development. Species *''Rhodnius amazonicus'' Almeida, Santos & Sposina, 1973 *''Rhodnius brethesi'' Matta, 1919 (Tc) *''Rhodnius colombiensis'' Moreno Mejía, Galvão & Jurberg, 1999 *''Rhodnius dalessandroi'' Carcavallo & Barreto, 1976 *''Rhodnius domesticus'' Neiva & Pinto, 1923 (Tc) *''Rhodnius ecuadoriensis'' Lent & León, 1958 (Tc) *''Rhodnius milesi'' Carcavallo, Rocha, Galvão, Jurberg, 2001 *''Rhodnius nasutus'' Stål, 1859 (Tc) *'' Rhodnius neglectus'' Lent, 1954 (Tc) *''Rhodnius neivai'' Lent, 1953 *'' Rhodnius pallescens'' Barber, 1932 (Tc) (principal vector in Panama). *''Rhodnius paraensis'' Sherlock, Guitton & Miles, 1977 (Tc) *''Rhodnius pictipes'' Stål, 1872 (Tc) *''Rhodnius prolixus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodnius Prolixus70-300
''Rhodnius'' is a genus of assassin bugs in the subfamily Triatominae (the kissing bugs), and is an important vector in the spread of Chagas disease. The ''Rhodnius'' species were important models for Sir Vincent Wigglesworth's studies of insect physiology, specifically growth and development. Species *''Rhodnius amazonicus'' Almeida, Santos & Sposina, 1973 *''Rhodnius brethesi'' Matta, 1919 (Tc) *''Rhodnius colombiensis'' Moreno Mejía, Galvão & Jurberg, 1999 *''Rhodnius dalessandroi'' Carcavallo & Barreto, 1976 *''Rhodnius domesticus'' Neiva & Pinto, 1923 (Tc) *''Rhodnius ecuadoriensis'' Lent & León, 1958 (Tc) *''Rhodnius milesi'' Carcavallo, Rocha, Galvão, Jurberg, 2001 *''Rhodnius nasutus'' Stål, 1859 (Tc) *''Rhodnius neglectus'' Lent, 1954 (Tc) *''Rhodnius neivai'' Lent, 1953 *'' Rhodnius pallescens'' Barber, 1932 (Tc) (principal vector in Panama). *''Rhodnius paraensis'' Sherlock, Guitton & Miles, 1977 (Tc) *''Rhodnius pictipes'' Stål, 1872 (Tc) *''Rhodnius prolixus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodnius Prolixus
''Rhodnius prolixus'' is the principal triatomine vector of the Chagas parasite due to both its sylvatic and domestic populations in northern South America as well as to its exclusively domestic populations in Central America. It has a wide range of ecotopes, mainly savanna and foothills with an altitude of between above sea level and temperatures of . Sylvatic ''R. prolixus'', as virtually all '' Rhodnius'' spp., is primarily associated with palm tree habitats and has a wide range of hosts including birds, rodents, marsupials, sloths, and reptiles. The insect was used by Sir Vincent Wigglesworth for the detection of insect hormones. It has been implicated in the transmission of transposons between it and some of its vertebrate hosts, squirrel monkeys and opossums. ''Rhodnius prolixus'' is also known as the kissing bug because it tends to feed on the area around victims' mouths. History ''Rhodnius prolixus'' established itself throughout Central America after specime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodnius Pallescens
''Rhodnius pallescens'' is a species of insect from the genus ''Rhodnius ''Rhodnius'' is a genus of assassin bugs in the subfamily Triatominae (the kissing bugs), and is an important vector in the spread of Chagas disease. The ''Rhodnius'' species were important models for Sir Vincent Wigglesworth's studies of insec ...''. The species was originally described by H.G. Barber in 1932. References * Reduviidae {{Cimicomorpha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triatominae
The members of the Triatominae , a subfamily of the Reduviidae, are also known as conenose bugs, kissing bugs (so-called from their habit of feeding from around the mouths of people), or vampire bugs. Other local names for them used in The Americas include ''barbeiros'', ''vinchucas'', ''pitos'', ''chipos'' and ''chinches''. Most of the 130 or more species of this subfamily feed on vertebrate blood; a very few species feed on invertebrates. They are mainly found and widespread in the Americas, with a few species present in Asia and Africa. These bugs usually share shelter with nesting vertebrates, from which they suck blood. In areas where Chagas disease occurs (from the southern United States to northern Argentina), all triatomine species are potential vectors of the Chagas disease parasite ''Trypanosoma cruzi'', but only those species that are well adapted to living with humans (such as ''Triatoma infestans'' and ''Rhodnius prolixus'') are considered important vectors. Also, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chagas Disease
Chagas disease, also known as American trypanosomiasis, is a tropical parasitic disease caused by ''Trypanosoma cruzi''. It is spread mostly by insects in the subfamily '' Triatominae'', known as "kissing bugs". The symptoms change over the course of the infection. In the early stage, symptoms are typically either not present or mild, and may include fever, swollen lymph nodes, headaches, or swelling at the site of the bite. After four to eight weeks, untreated individuals enter the chronic phase of disease, which in most cases does not result in further symptoms. Up to 45% of people with chronic infections develop heart disease 10–30 years after the initial illness, which can lead to heart failure. Digestive complications, including an enlarged esophagus or an enlarged colon, may also occur in up to 21% of people, and up to 10% of people may experience nerve damage. is commonly spread to humans and other mammals by the bite of a kissing bug. The disease may also be spr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vincent Wigglesworth
Sir Vincent Brian Wigglesworth CBE FRS (17 April 1899 – 11 February 1994) was a British entomologist who made significant contributions to the field of insect physiology. He established the field in a textbook which was updated in a number of editions. In particular, he studied metamorphosis. His most significant contribution was the discovery that neurosecretory cells in the brain of the South American kissing bug, ''Rhodnius prolixus'', secrete a crucial hormone that triggers the prothoracic gland to release prothoracicotropic hormone (PTTH), which regulates the process of metamorphosis. This was the first experimental confirmation of the function of neurosecretory cells. He went on to discover another hormone, called the juvenile hormone, which prevented the development of adult characteristics in ''R. prolixus'' until the insect had reached the appropriate larval stage. Wigglesworth was able to distort the developmental phases of the insect by controlling levels of this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reduviidae
The Reduviidae are a large cosmopolitan family of the order Hemiptera (true bugs). Among the Hemiptera and together with the Nabidae almost all species are terrestrial ambush predators: most other predatory Hemiptera are aquatic. The main examples of nonpredatory Reduviidae are some blood-sucking ectoparasites in the subfamily Triatominae. Though spectacular exceptions are known, most members of the family are fairly easily recognizable; they have a relatively narrow neck, sturdy build, and a formidable curved proboscis (sometimes called a rostrum). Large specimens should be handled with caution, if at all, because they sometimes defend themselves with a very painful stab from the proboscis. Taxonomy The Reduviidae are members of the suborder Heteroptera of the order Hemiptera. The family members are almost all predatory, except for a few blood-sucking species, some of which are important as disease vectors. About 7000 species have been described, in more than 20 recognized subf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assassin Bug
The Reduviidae are a large cosmopolitan family of the order Hemiptera (true bugs). Among the Hemiptera and together with the Nabidae almost all species are terrestrial ambush predators: most other predatory Hemiptera are aquatic. The main examples of nonpredatory Reduviidae are some blood-sucking ectoparasites in the subfamily Triatominae. Though spectacular exceptions are known, most members of the family are fairly easily recognizable; they have a relatively narrow neck, sturdy build, and a formidable curved proboscis (sometimes called a rostrum). Large specimens should be handled with caution, if at all, because they sometimes defend themselves with a very painful stab from the proboscis. Taxonomy The Reduviidae are members of the suborder Heteroptera of the order Hemiptera. The family members are almost all predatory, except for a few blood-sucking species, some of which are important as disease vectors. About 7000 species have been described, in more than 20 recognized subfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Stål
Carl Stål (21 March 1833 – 13 June 1878) was a Swedish entomologist specialising in Hemiptera. He was born at Karlberg Castle, Stockholm on 21 March 1833 and died at Frösundavik near Stockholm on 13 June 1878. He was the son of architect, author and officer Carl Stål then Colonel, Swedish Corps of Engineers. He matriculated at Uppsala University in 1853, studying medicine and passing the medico-philosophical examination in 1857. He then turned to entomology and completed his Ph.D. at the University of Jena in 1859. The same year he became assistant to Carl Henrik Boheman in the Zoological department of the Swedish Museum of Natural History in Stockholm, where, in 1867, he was appointed keeper with the title of professor. He made collecting trips in Sweden and throughout Europe and visited other museums including the collection of Johan Christian Fabricius in Kiel. His study of the Fabrician types resulted in his "Hemiptera Fabriciana". A significant part of Stål's work w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honduras
Honduras, officially the Republic of Honduras, is a country in Central America. The republic of Honduras is bordered to the west by Guatemala, to the southwest by El Salvador, to the southeast by Nicaragua, to the south by the Pacific Ocean at the Gulf of Fonseca, and to the north by the Gulf of Honduras, a large inlet of the Caribbean Sea. Its capital and largest city is Tegucigalpa. Honduras was home to several important Mesoamerican cultures, most notably the Maya, before the Spanish Colonization in the sixteenth century. The Spanish introduced Catholicism and the now predominant Spanish language, along with numerous customs that have blended with the indigenous culture. Honduras became independent in 1821 and has since been a republic, although it has consistently endured much social strife and political instability, and remains one of the poorest countries in the Western Hemisphere. In 1960, the northern part of what was the Mosquito Coast was transferred from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
