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Grasshoppers
Grasshoppers are a group of insects belonging to the suborder Caelifera. They are among what is possibly the most ancient living group of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshoppers are typically ground-dwelling insects with powerful hind legs which allow them to escape from threats by leaping vigorously. As hemimetabolous insects, they do not undergo complete metamorphosis; they hatch from an egg into a nymph or "hopper" which undergoes five moults, becoming more similar to the adult insect at each developmental stage. The grasshopper hears through the tympanal organ which can be found in the first segment of the abdomen attached to the thorax; while its sense of vision is in the compound eyes, the change in light intensity is perceived in the simple eyes (ocelli). At high population densities and under certain environmental conditions, some grasshopper species can change color and behavior and form swarms. Und ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locust
Locusts (derived from the Vulgar Latin ''locusta'', meaning grasshopper) are various species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstances they become more abundant and change their behaviour and habits, becoming gregarious. No taxonomic distinction is made between locust and grasshopper species; the basis for the definition is whether a species forms swarms under intermittently suitable conditions; this has evolved independently in multiple lineages, comprising at least 18 genera in 5 different acridid subfamilies. Normally, these grasshoppers are innocuous, their numbers are low, and they do not pose a major economic threat to agriculture. However, under suitable conditions of drought followed by rapid vegetation growth, serotonin in their brains triggers dramatic changes: they start to breed abundantly, becoming gregarious and nomadic (loosely described as migrator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caelifera
The Caelifera are a suborder of orthopteran insects. They include the grasshoppers and grasshopper-like insects, as well as other superfamilies classified with them: the ground-hoppers ( Tetrigoidea) and pygmy mole crickets ( Tridactyloidea). The latter should not be confused with the mole crickets ( Gryllotalpidae), which belong to the other Orthopteran sub-order Ensifera. The name of this suborder comes from Latin meaning ''chisel-bearing'' ("chisel" in Latin: ''caelum''), referring to the "stout" shape of its species' ovipositors. Subdivisions and their distribution The Caelifera include some 2,400 valid genera and about 12,000 known species. Many undescribed species probably exist, especially in tropical forests. The Caelifera have a predominantly tropical distribution (as with most Orthoptera) with fewer species known from temperate climate zones. Caelifera are divided into two infraorders: the more basal Tridactylidea and the Acrididea or grasshopper-like species. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bush-cricket
Insects in the family Tettigoniidae are commonly called katydids (especially in North America), or bush crickets. They have previously been known as "long-horned grasshoppers". More than 8,000 species are known. Part of the suborder Ensifera, the Tettigoniidae are the only extant (living) family in the superfamily Tettigonioidea. They are primarily nocturnal in habit with strident mating calls. Many species exhibit mimicry and camouflage, commonly with shapes and colors similar to leaves. Etymology The family name Tettigoniidae is derived from the genus '' Tettigonia'', first described by Carl Linnaeus in 1758. In Latin ''tettigonia'' means a kind of small cicada, leafhopper; it is from the Greek τεττιγόνιον ''tettigonion'', the diminutive of the imitative (onomatopoeic) τέττιξ, ''tettix'', cicada. All of these names such as ''tettix'' with repeated sounds are onomatopoeic, imitating the stridulation of these insects. The common name ''katydid'' is also onomat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pest (organism)
A pest is any animal or plant harmful to humans or human concerns. The term is particularly used for creatures that damage crops, livestock, and forestry or cause a nuisance to people, especially in their homes. Humans have modified the environment for their own purposes and are intolerant of other creatures occupying the same space when their activities impact adversely on human objectives. Thus, an elephant is unobjectionable in its natural habitat but a pest when it tramples crops. Some animals are disliked because they bite or sting; snakes, wasps, ants, bed bugs, fleas and ticks belong in this category. Others enter the home; these include houseflies, which land on and contaminate food, beetles, which tunnel into the woodwork, and other animals that scuttle about on the floor at night, like cockroaches, which are often associated with unsanitary conditions. Agricultural and horticultural crops are attacked by a wide variety of pests, the most important being insects, mites ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrgomorphidae
Pyrgomorphidae is a family of grasshoppers in the order Orthoptera; it is the only family in the superfamily Pyrgomorphoidea, with a pan-tropical distribution. Their name is probably derived from ''pyrgos'' (Greek: ''Πύργος'') meaning "tower": a reference to the form (''morph'') of the head in the type genus '' Pyrgomorpha'' and other genera. They may sometimes be known as "gaudy grasshoppers", due to the striking, often aposematic colouration of a number of genera; however many others are camouflaged or cryptic, including the genus '' Pyrgomorpha''. Subfamilies and tribes Incomplete list of genera and species: Subfamily Orthacridinae All tribes and selected genera only are shown here: * Tribe Brunniellini Kevan, 1963 - Philippines * Tribe Chapmanacridini Kevan & Akbar, 1964 - W. Africa * Tribe Fijipyrgini Kevan, 1966 - Fiji * Tribe Geloiini Bolívar, 1905 - Madagascar * Tribe Gymnohippini Kevan & Akbar, 1964 - Madagascar * Tribe Ichthiacridini Kevan, Singh & Akbar, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acridoidea
Acridoidea is the largest superfamily of grasshoppers in the order Orthoptera with species found on every continent except Antarctica. Classification ''Orthoptera Species File'' includes the following families: * Acrididae MacLeay, 1821 *Dericorythidae Jacobson & Bianchi, 1905 * Lathiceridae Dirsh, 1954 * Lentulidae Dirsh, 1956 * Lithidiidae Dirsh, 1961 * Ommexechidae Bolívar, 1884 * Pamphagidae Burmeister, 1840 * Pamphagodidae Bolívar, 1884 * Pyrgacrididae Kevan, 1974 *Romaleidae Pictet & Saussure, 1887 *Tristiridae Rehn, 1906 Chromosomes Among the families Acrididae, Ommexechidae and Romaleidae there is reported to be chromosomal stability with a high frequency of species harbouring diploid number (2n) of 23♂/24♀ chromosomes. In species of Acrididae and Romaleidae it is common to have acrocentric chromosomes with a fundamental number (FN), i.e. number of chromosome arms, of 23♂/24♀. However, chromosomal rearrangements are frequently found as deviations from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Ancient Israel And Judah
The history of ancient Israel and Judah begins in the Southern Levant during the Late Bronze Age and Early Iron Age. "Israel" as a people or tribal confederation (see Israelites) appears for the first time in the Merneptah Stele, an inscription from ancient Egypt that dates to about 1208 BCE. According to modern archaeology, ancient Israelite culture developed as an outgrowth from the Canaanites. Two related Israelite polities known as the Kingdom of Israel and the Kingdom of Judah had emerged in the region by Iron Age II. According to the Hebrew Bible, a " United Monarchy" (consisting of Israel and Judah) existed as early as the 11th century BCE, under the reigns of Saul, David, and Solomon; the country later would have split into two separate kingdoms: Israel (containing the cities of Shechem and Samaria) in the north and Judah (containing Jerusalem and the Jewish Temple) in the south. The historicity of the United Monarchy is debated as there are no archaeolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitoid
In evolutionary ecology, a parasitoid is an organism that lives in close association with its host (biology), host at the host's expense, eventually resulting in the death of the host. Parasitoidism is one of six major evolutionarily stable strategy, evolutionary strategies within parasitism, distinguished by the fatal prognosis for the host, which makes the strategy close to predation. Among parasitoids, strategies range from living inside the host (''endoparasitism''), allowing it to continue growing before emerging as an adult, to Paralysis, paralysing the host and living outside it (''ectoparasitism''). Hosts can include other parasitoids, resulting in hyperparasitism; in the case of oak galls, up to five levels of parasitism are possible. Some parasitoids Behavior-altering parasite, influence their host's behaviour in ways that favour the propagation of the parasitoid. Parasitoids are found in a variety of Taxon, taxa across the insect superorder Endopterygota, whose compl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acridology
Orthopterology is the scientific study of the order Orthoptera, which includes grasshoppers, crickets, locusts and some other insects. Someone that studies in this field is an orthopterist. The term is derived from the Ancient Greek words and , meaning ''straight'' and ''wing'' respectively, with the English suffix ''-logy''.This ultimately derives from Greek , but via Latin ''-logia'' and French ''-logie''. Orthopterology as a science A notable branch of orthopterology is , which focuses on locusts and grasshoppers in the family Acrididae and is relevant to famine prevention. Orthopterological societies * Association for Applied Acridology International * Orthopterists' Society * German Society for Orthopterology Orthopterological Journals * Journal of Orthoptera Research A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of what happened over the course of a day or other period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warning Coloration
Aposematism is the Advertising in biology, advertising by an animal to potential predation, predators that it is not worth attacking or eating. This unprofitability may consist of any defences which make the prey difficult to kill and eat, such as toxicity, venom, foul taste or smell, sharp spines, or aggressive nature. These advertising signals may take the form of conspicuous animal coloration, coloration, sounds, odours, or other perception, perceivable characteristics. Aposematic signals are beneficial for both predator and prey, since both avoid potential harm. The term was coined in 1877 by Edward Bagnall Poulton for Alfred Russel Wallace's concept of warning coloration. Aposematism is exploited in Müllerian mimicry, where species with strong defences evolve to resemble one another. By mimicking similarly coloured species, the warning signal to predators is shared, causing them to learn more quickly at less of a cost. A genuine aposematic signal that a species actually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Grasshopper
''Dactylotum bicolor'', also known as the rainbow grasshopper, painted grasshopper, or the barber pole grasshopper, is a species of grasshopper in the family Acrididae. It is native to the United States, Canada and northern Mexico and exhibits aposematism (warning coloration). It was first described by the German entomologist Toussaint de Charpentier in 1843. Description ''Dactylotum bicolor'' grows to an average length of about for males and for females. It is mainly black with distinctive reddish and yellowish markings, a pale green prothorax and pale green wingpads. The tibia of the hind leg bears six to eight spines. This species does not develop wings and is unable to fly. Three subspecies are recognised: * ''D. b. bicolor'' – Northern Texas, New Mexico and Mexico * ''D. b. pictum'' – Northern and eastern part of range * ''D. b. variegatum'' – Southern Arizona and western part of range The coloring varies across the insect's range, with ''D. b. pictum'' being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
