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Rhynocoris Marginatus
''Rhynocoris marginatus'' is a species of assassin bug in the family Reduviidae. It is a predator of other insects and is found in Asia. Crops in India on which it has been found feeding on pests include sugarcane, pigeon pea, cardamom, cotton, tea, and peanuts. The insects are potentially useful in biological control because they are more resistant to pesticides than are the pests on which they feed. Morphology From the family Reduviidae, ''R. marginatus'' success as a predator in agricultural systems is due to unique morphological and physiological adaptations for the predation of other insects. Most notably among these adaptations is their extra-oral digestion feeding mechanism, as well as a three-segmented rostrum, or barb, armed with a number of hair-like mechanical and chemical sensors, used not only to sense and determine the suitability of their prey, but also to deliver venomous saliva to paralyse their victims. Unique to ''R. marginatus'' is their accessory salivary g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johan Christian Fabricius
Johan Christian Fabricius (7 January 1745 – 3 March 1808) was a Danish zoologist, specialising in "Insecta", which at that time included all arthropods: insects, arachnids, crustaceans and others. He was a student of Carl Linnaeus, and is considered one of the most important entomologists of the 18th century, having named nearly 10,000 species of animals, and established the basis for the modern insect classification. Biography Johan Christian Fabricius was born on 7 January 1745 at Tønder in the Duchy of Schleswig, where his father was a doctor. He studied at the gymnasium at Altona and entered the University of Copenhagen in 1762. Later the same year he travelled together with his friend and relative Johan Zoëga to Uppsala, where he studied under Carl Linnaeus for two years. On his return, he started work on his , which was finally published in 1775. Throughout this time, he remained dependent on subsidies from his father, who worked as a consultant at Frederiks Hospita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphosis
Metamorphosis is a biological process by which an animal physically develops including birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. Some insects, fish, amphibians, mollusks, crustaceans, cnidarians, echinoderms, and tunicates undergo metamorphosis, which is often accompanied by a change of nutrition source or behavior. Animals can be divided into species that undergo complete metamorphosis (" holometaboly"), incomplete metamorphosis ("hemimetaboly"), or no metamorphosis (" ametaboly"). Scientific usage of the term is technically precise, and it is not applied to general aspects of cell growth, including rapid growth spurts. Generally organisms with a larva stage undergo metamorphosis, and during metamorphosis the organism loses larval characteristics. References to "metamorphosis" in mammals are imprecise and only colloquial, but historically idealist ideas of transformation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiptera Of Asia
Hemiptera (; ) is an order (biology), order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, Reduviidae, assassin bugs, Cimex, bed bugs, and shield bugs. They range in size from to around , and share a common arrangement of piercing-sucking Insect mouthparts, mouthparts. The name "true bugs" is often limited to the suborder Heteroptera. Entomologists reserve the term ''bug'' for Hemiptera or Heteroptera,Gilbert Waldbauer. ''The Handy Bug Answer Book.'' Visible Ink, 1998p. 1. which does not include other arthropods or insects of other orders such as Ant, ants, Bee, bees, Beetle, beetles, or Butterfly, butterflies. In some variations of English, all Terrestrial animal, terrestrial arthropods (including non-insect arachnids, and myriapods) also fall under the Colloquialism, colloquial understanding of ''bug''. Many insects with "bug" in their common name, especially in American English, belo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mylabris
''Mylabris'' is a genus of beetles in the family Meloidae. It is endemic to the Palearctic realm. The species-rich genus ''Hycleus'' (c. 430 spp.) was historically confused with ''Mylabris''. It is superficially similar, but is centered on the Afrotropics. Species The genus contains the following species: * '' Mylabris abdelkaderi'' (Escalera, 1909) * '' Mylabris afghanica'' Kaszab, 1953 * '' Mylabris ajantaensis'' Saha, 1979 * '' Mylabris alicae'' Pic, 1909 * '' Mylabris allousei'' (Kaszab, 1960) * '' Mylabris alpina'' Ménétriés, 1832 * '' Mylabris alterna'' Laporte de Castelnau, 1840 * '' Mylabris alternata'' Harold, 1870 * '' Mylabris amoenula'' Ménétriés, 1849 * '' Mylabris amori'' Graells, 1858 * ''Mylabris andongoana'' Harold, 1879 * '' Mylabris andrei'' Pic, 1911 * '' Mylabris andresi'' (Pic, 1911) * '' Mylabris angustissima'' Pic, 1909 * ''Mylabris aperta'' Gerstaecker, 1873 * ''Mylabris apicefasciata'' Sumakov, 1929 * ''Mylabris apicenigra'' Sumakov, 1915 * ''Myla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dysdercus Cingulatus
''Dysdercus cingulatus'' is a species of true bug in the family Pyrrhocoridae, commonly known as the red cotton stainer. It is a serious pest of cotton crops, the adults and older nymphs feeding on the emerging bolls and the cotton seeds as they mature, transmitting cotton-staining fungi as they do so. Description ''Dysdercus cingulatus'' grows to a length of . It is mainly red but has a white collar and three black spots. It is closely related and very similar to '' Dysdercus koenigii'' but ''D. cingulatus'' is slightly larger and the femora have varying amounts of black while ''D. koenigii'' has completely red femora. Distribution ''D. cingulatus'' occurs in Nepal, Sri Lanka, northeastern India, Bangladesh, Thailand, the Philippines, Sumatra, Borneo, Papua New Guinea, Argentina, and northern Australia. Host plants As well as cotton (''Gossypium''), ''D. cingulatus'' feeds on a number of other crop plants including okra (''Abelmoschus esculentus''), muskmallow (''Abelmoschus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kairomone
A kairomone (a coinage using the Greek καιρός ''opportune moment'', paralleling pheromone"kairomone, n.". OED Online. September 2012. Oxford University Press. http://www.oed.com/view/Entry/241005?redirectedFrom=kairomone (accessed 3 October 2012).) is a semiochemical, emitted by an organism, which mediates interspecific interactions in a way that benefits an individual of another species which receives it and harms the emitter. This "eavesdropping" is often disadvantageous to the producer (though other benefits of producing the substance may outweigh this cost, hence its persistence over evolutionary time). The kairomone improves the fitness of the recipient and in this respect differs from an allomone (which is the opposite: it benefits the producer and harms the receiver) and a synomone (which benefits both parties). The term is mostly used in the field of entomology (the study of insects). Two main ecological cues are provided by kairomones; they generally either indicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsacta Albistriga
''Amsacta albistriga'', the red hairy caterpillar, is a moth of the family Erebidae. It is found in southern India, where it has been recorded feeding on finger millet and sorghum. The wingspan is . The larvae defoliate various agricultural crops. After about thirty to forty days of feeding the larvae burrow into the soil to pupate. References External linksSpecies info Spilosomina Moths described in 1865 Moths of Asia Insect pests of millets {{Spilosomina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aproaerema Modicella
''Aproaerema modicella'' is a moth of the family Gelechiidae. It was described by Deventer in 1904. It is found in Indonesia (Java) and India. It has been an invasive on the African continent since 1998 where it is a pest on groundnut and soybean. The wingspan is 8–10 mm. The base of the forewings is light brown, darkening towards the center, becoming greyish near the fringe. The markings consist of a small round light brownish spot in the middle of the fold and a larger spot at the margin. There are two small dark spots accompanying the first spot. The hindwings are brownish grey. The larvae feed on ''Soya hispida'', ''Arachis hypogaea'', ''Glycine max'', ''Medicago sativa'' and ''Cajanus cajan The pigeon pea (''Cajanus cajan'') is a perennial legume from the family Fabaceae native to the Old World. The pigeon pea is widely cultivated in tropical and semitropical regions around the world, being commonly consumed in South Asia, Southeast ...''. References Moths de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicoverpa Armigera
''Helicoverpa armigera'' is a species of Lepidoptera in the family Noctuidae. It is known as the cotton bollworm, corn earworm, Old World (African) bollworm, or scarce bordered straw (the lattermost in the UK, where it is a migrant). The larvae feed on a wide range of plants, including many important cultivated crops. It is a major pest in cotton and one of the most polyphagous and cosmopolitan pest species. It should not be confused with the similarly named larva of the related species ''Helicoverpa zea''. Distribution This species comprises two sub-species: ''Helicoverpa armigera armigera'' is native and widespread in central and southern Europe, temperate Asia and Africa; ''Helicoverpa armigera conferta'' is native to Australia, and Oceania. The former sub-species has also recently been confirmed to have successfully invaded Brazil and has since spread across much of South America and reached the Caribbean. It is a migrant species, able to reach Scandinavia and other northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spodoptera Litura
''Spodoptera litura'', otherwise known as the tobacco cutworm or cotton leafworm, is a nocturnal moth in the family Noctuidae. ''S. litura'' is a serious polyphagous pest in Asia, Oceania, and the Indian subcontinent that was first described by Johan Christian Fabricius in 1775. Its common names reference two of the most frequent host plants of the moth. In total, 87 species of host plants that are infested by ''S. litura'' are of economic importance. The species parasitize the plants through the larvae vigorous eating patterns, oftentimes leaving the leaves completely destroyed. The moth's effects are quite disastrous, destroying economically important agricultural crops and decreasing yield in some plants completely. Their potential impact on the many different cultivated crops, and subsequently the local agricultural economy, has led to serious efforts to control the pests. ''S. litura'' is often confused with its close relative, ''Spodoptera littoralis''. These two species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymph
A nymph ( grc, νύμφη, nýmphē, el, script=Latn, nímfi, label=Modern Greek; , ) in ancient Greek folklore is a minor female nature deity. Different from Greek goddesses, nymphs are generally regarded as personifications of nature, are typically tied to a specific place or landform, and are usually depicted as maidens. They were not necessarily immortal, but lived much longer than human beings. They are often divided into various broad subgroups, such as the Meliae (ash tree nymphs), the Dryads (oak tree nymphs), the Naiads (freshwater nymphs), the Nereids (sea nymphs), and the Oreads (mountain nymphs). Nymphs are often featured in classic works of art, literature, mythology, and fiction. Since the Middle Ages, nymphs have been sometimes popularly associated or even confused with fairies. Etymology The Greek word has the primary meaning of "young woman; bride, young wife" but is not usually associated with deities in particular. Yet the etymology of the noun remains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemimetabolism
Hemimetabolism or hemimetaboly, also called incomplete metamorphosis and paurometabolism,McGavin, George C. ''Essential Entomology: An Order-by-Order Introduction''. Oxford: Oxford University Press, 2001. pp. 20. is the mode of development of certain insects that includes three distinct stages: the egg, nymph, and the adult stage, or imago. These groups go through gradual changes; there is no pupal stage. The nymph often has a thin exoskeleton and resembles the adult stage but lacks wings and functional reproductive organs. The hemimetabolous insects differ from ametabolous taxa in that the one and only adult instar undergoes no further moulting. Orders All insects of the Pterygota except Holometabola belong to hemimetabolous orders: *Hemiptera (scale insects, aphids, whitefly, cicadas, leafhoppers, and true bugs) * Orthoptera ( grasshoppers, locusts, and crickets) *Mantodea (praying mantises) *Blattodea (cockroaches and termites) *Dermaptera (earwigs) *Odonata (dragonflies and da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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