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Lethocerus Americanus
''Lethocerus americanus'' is a giant water bug in the family Belostomatidae, native to southern Canada and the United States (north of 35°N; other ''Lethocerus'' species are found southwards). It typically has a length around .P. J. Perez-Goodwyn (2006). ''Taxonomic revision of the subfamily Lethocerinae Lauck & Menke (Heteroptera: Belostomatidae)". Stuttgarter Beiträge zur Naturkunde.'' A (Biologie) 695: 1–71. It was originally classified as a species in genus '' Belostoma''. Habits Commonly found in ponds, marshes, and on the edges of lakes and slow-moving streams, and creeks, adults and larvae feed on other insects, small crustaceans (crabs/crayfish), tadpoles, snails, and small fish. The adult swims with the aid of its hind legs. A pair of front fore limbs is used for capturing and latching onto its intended prey, which it then injects with digestive toxins through a somewhat retractable proboscis much like that of a mosquito. ''L. americanus'' tends to let its prey dige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Leidy
Joseph Mellick Leidy (September 9, 1823 – April 30, 1891) was an American paleontologist, parasitologist and anatomist. Leidy was professor of anatomy at the University of Pennsylvania, later was a professor of natural history at Swarthmore College and the director of scientific and educational programs at the Wagner Free Institute of Science. His book ''Extinct Fauna of Dakota and Nebraska'' (1869) contained many species not previously described and many previously unknown on the North American continent. At the time, scientific investigation was largely the province of wealthy amateurs. The Leidy Glacier in northwest Greenland was named by Robert Peary after him. Early life and family Joseph Leidy was born on September 9, 1823, to an established Philadelphia family of Pennsylvania Germans. His father, Philip, was a hatter; his mother, Catharine, died during childbirth when he was young. His father then married his wife's first cousin, Christiana Mellick. Leidy also ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Water Bug
Belostomatidae is a family of freshwater hemipteran insects known as giant water bugs or colloquially as toe-biters, Indian toe-biters, electric-light bugs, alligator ticks, or alligator fleas (in Florida). They are the largest insects in the order Hemiptera. There are about 170 species found in freshwater habitats worldwide, with more than 110 in the Neotropics, more than 20 in Africa, almost as many in the Nearctic, and far fewer elsewhere. These predators are typically encountered in freshwater ponds, marshes and slow-flowing streams. Most species are at least long, although smaller species, down to , also exist. The largest are members of the genus ''Lethocerus'', which can exceed and nearly reach the length of some of the largest beetles in the world. Giant water bugs are a popular food in parts of Asia. Morphology Belostomatids have a flattened, obovoid to ovoid-elongate body, and usually the legs are flattened. The head features two large compound eyes, but lacks oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belostomatidae
Belostomatidae is a family of freshwater hemipteran insects known as giant water bugs or colloquially as toe-biters, Indian toe-biters, electric-light bugs, alligator ticks, or alligator fleas (in Florida). They are the largest insects in the order Hemiptera. There are about 170 species found in freshwater habitats worldwide, with more than 110 in the Neotropics, more than 20 in Africa, almost as many in the Nearctic, and far fewer elsewhere. These predators are typically encountered in freshwater ponds, marshes and slow-flowing streams. Most species are at least long, although smaller species, down to , also exist. The largest are members of the genus ''Lethocerus'', which can exceed and nearly reach the length of some of the largest beetles in the world. Giant water bugs are a popular food in parts of Asia. Morphology Belostomatids have a flattened, obovoid to ovoid-elongate body, and usually the legs are flattened. The head features two large compound eyes, but lacks oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
35th Parallel North
The 35th parallel north is a circle of latitude that is 35 degrees north of the Earth's equatorial plane. It crosses Africa, the Mediterranean Sea, Asia, the Pacific Ocean, North America and the Atlantic Ocean. In the United States, the parallel defines the southern border of Tennessee, and the border between North Carolina and Georgia, as well as the tripoint of Arizona–California–Nevada. At this northern latitude, the Sun is visible for 14 hours, 31 minutes on its summer solstice (in June) and for 9 hours, 48 minutes on its winter solstice (in December). This parallel is sometimes used to define the northern boundary of the subtropics. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 35° north passes through: : See also * 34th parallel north The 34th parallel north is a circle of latitude that is 34 degrees north of the Earth's equatorial plane. It crosses Africa, the Mediterranean Sea, Asia, the Pacific Ocean, North America and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethocerus
''Lethocerus'' is a genus of the hemipteran family Belostomatidae, known colloquially as giant water bugs, toe biters and electric light bugs, distributed in tropical, subtropical and temperate areas of the world. The greatest diversity of species occurs in the Americas, with only a single species in Europe, two in Africa, two in Australia and three in Asia. It includes the largest true bugs with species capable of reaching a length of over .Haddad Jr; Schwartz; Schwartz; and Carvalho (2010). ''Bites Caused by Giant Water Bugs Belonging to Belostomatidae Family (Hemiptera, Heteroptera) in Humans: A Report of Seven Cases.'' Wilderness & Environmental Medicine 21: 130–133. The South American ''L. grandis'' and ''L. maximus'' are the only species to commonly exceed , with more typical lengths for the remaining species being between . ''Lethocerus'' sp. are distinguished from other genera in the Lethocerinae ('' Benacus'' and ''Kirkaldyia'') by two symmetrical furrows in the inner ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belostoma
''Belostoma'' is a genus of insects in the hemipteran family Belostomatidae, known colloquially as giant water bugs. Members of this genus are native to freshwater habitats in the Americas, with the greatest species richness in tropical South America.Ribero, J. R. I. (2007). ''A review of the species of ''Belostoma'' Latreille, 1807 (Hemiptera: Heteroptera: Belostomatidae) from the four southeastern Brazilian states.'' Zootaxa 1477: 1-70. Most species in the family Belostomatidae have historically been included in ''Belostoma'', but several of these have been moved to other genera (although ''Belostoma'' remains a genus with many members).Perez-Goodwyn, P. J. (2006). ''Taxonomic revision of the subfamily Lethocerinae Lauck & Menke (Heteroptera: Belostomatidae)". Stuttgarter Beiträge zur Naturkunde.'' Serie A (Biologie) 695: 1–71. 9 species are claimed to be found in Northern America, but the genus Belostoma is actually divided into 16 subgroups containing about 70 species. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethocerus Americanus
''Lethocerus americanus'' is a giant water bug in the family Belostomatidae, native to southern Canada and the United States (north of 35°N; other ''Lethocerus'' species are found southwards). It typically has a length around .P. J. Perez-Goodwyn (2006). ''Taxonomic revision of the subfamily Lethocerinae Lauck & Menke (Heteroptera: Belostomatidae)". Stuttgarter Beiträge zur Naturkunde.'' A (Biologie) 695: 1–71. It was originally classified as a species in genus '' Belostoma''. Habits Commonly found in ponds, marshes, and on the edges of lakes and slow-moving streams, and creeks, adults and larvae feed on other insects, small crustaceans (crabs/crayfish), tadpoles, snails, and small fish. The adult swims with the aid of its hind legs. A pair of front fore limbs is used for capturing and latching onto its intended prey, which it then injects with digestive toxins through a somewhat retractable proboscis much like that of a mosquito. ''L. americanus'' tends to let its prey dige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermatology Online Journal
The ''Dermatology Online Journal'' is a monthly open-access peer-reviewed medical journal that was established in 1995 by Arthur Huntley (Department of Dermatology, University of California, Davis). It is published by the California Digital Library and covers all aspects of general dermatology. The current editor-in-chief is Barbara Burrall (University of California Davis). Besides medical information, the journal provides medical perspectives on non-medical topics and the ''Dermatology Online Journal'' published the first dermatology training program ranking. Abstracting and Indexing The journal is indexed in PubMed, MEDLINE, and Scopus Scopus is Elsevier's abstract and citation database launched in 2004. Scopus covers nearly 36,377 titles (22,794 active titles and 13,583 inactive titles) from approximately 11,678 publishers, of which 34,346 are peer-reviewed journals in top-l .... References External links * Dermatology journals English-language journals Monthly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benacus Griseus
''Benacus griseus'' is a species of giant water bug in the family Belostomatidae. It is the only species in the genus '' Benacus'', which was formerly considered a subgenus of ''Lethocerus ''Lethocerus'' is a genus of the hemipteran family Belostomatidae, known colloquially as giant water bugs, toe biters and electric light bugs, distributed in tropical, subtropical and temperate areas of the world. The greatest diversity of speci ...''. ''Benacus griseus'' is found throughout eastern North America, from New England, west through southern Ontario and to Nebraska, south to Florida and Texas, along the Gulf of Mexico coast in Mexico, and into Cuba. Adults reach lengths of 47–64 mm, making them one of the largest aquatic insect species found in eastern North America. It is distinguished from other Lethocerinae species by the lack of a groove on its front femur. It is also characterized by a wide hind tibia and black ventral stripes. References Belostomatidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethocerus Uhleri
''Lethocerus uhleri'', or Uhler's water bug, is a species of giant water bug in the family Belostomatidae Belostomatidae is a family of freshwater hemipteran insects known as giant water bugs or colloquially as toe-biters, Indian toe-biters, electric-light bugs, alligator ticks, or alligator fleas (in Florida). They are the largest insects in the or .... It is found in eastern North America from New York, Michigan, and Wisconsin south to Florida and northern Tamaulipas. References Belostomatidae Articles created by Qbugbot Insects described in 1896 {{Nepomorpha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymph (biology)
In biology, a nymph is the immature form of some invertebrates, particularly insects, which undergoes gradual metamorphosis (hemimetabolism) before reaching its adult stage. Unlike a typical larva, a nymph's overall form already resembles that of the adult, except for a lack of wings (in winged species). In addition, while a nymph moults, it never enters a pupal stage. Instead, the final moult results in an adult insect. Nymphs undergo multiple stages of development called instars. This is the case, for example, in Orthoptera (crickets, grasshoppers and locusts), Hemiptera (cicadas, shield bugs, whiteflies, aphids, leafhoppers, froghoppers, treehoppers etc.), mayflies, termites, cockroaches, mantises, stoneflies and Odonata (dragonflies and damselflies). Nymphs of aquatic insects, as in the Odonata, Ephemeroptera, and Plecoptera, are also called naiads, an Ancient Greek name for mythological water nymphs. Usage of the term 'naiad' is no longer popular among entomologists, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1847
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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