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Crypticerya Genistae
''Crypticerya genistae'' is a species of giant scale insect in the tribe Iceryini. Adult females somewhat resemble the widespread ''Icerya purchasi'' (cottony cushion scale), having a light orange body, black legs and a white fluted ovisac. However the ovisac is much larger, measuring , and is held either erect of parallel to the host plant. They are very similar in appearance to ''Icerya rileyi'' and ''Icerya littoralis''. Native to South America (including Brazil), ''C. genistae'' was accidentally introduced to Florida by 2005 and to the Cayman Islands by 2006. References Monophlebidae Insects described in 1912 {{Coccoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolph Hempel
Adolph Hempel (10 April 1870 – 4 November 1949) was an American entomologist who worked and became a citizen in Brazil. He was involved in cataloguing the insects of the region and worked on agriculturally important insects and their management. He also took some interest in the birds. Hempel was born in Buffalo, Ohio and graduated from the University of Illinois, Urbana. He moved to Brazil in the late 1890s and began to work at the Museu Paulista. He also worked for the Campinas Agronomic Institute. He was involved in the identification of pest insects. In 1929 he introduced a wasp '' Prorops nasuta'' from Uganda to control the coffee berry borer ''Hypothenemus hampei''. Hempel took a special interest in the Coccoidea Scale insects are small insects of the Order (biology), order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient g ... and describ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icerya Purchasi
''Icerya purchasi'' (common name: cottony cushion scale) is a scale insect that feeds on more than 80 families of woody plants, most notably on ''Citrus'' and ''Pittosporum''. Originally described in 1878 from specimens collected in New Zealand as pests of kangaroo acacia and named by W.M. Maskell "after the Rev. Dr. Purchas who, ebelieve first found it", it is now found worldwide where citrus crops are grown. The cottony cushion scale originates from Australia. Life cycle This scale infests twigs and branches. The mature hermaphrodite is oval in shape, reddish-brown with black hairs, 5 mm long. When mature, the insect remains stationary, attaches itself to the plant by waxy secretions, and produces a white egg sac in grooves, by extrusion, in the body which encases hundreds of red eggs. The egg sac will grow to be two to three times as long as the body. Newly hatched nymphs are the primary dispersal stage, with dispersion known to occur by wind and by crawling. Early st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icerya Rileyi
''Icerya'' is a genus of scale insects in the family Monophlebidae. It is named after physician-naturalist Dr. Edmond Icery of British Mauritius. Hermaphroditism Hermaphroditism is extremely rare in the insect world despite the comparatively common nature of this condition in the crustaceans. Several species of ''Icerya'', including the pestiferous cottony-cushion scale, ''I. purchasi'', are known to be hermaphrodites that reproduce by self-fertilising. Occasionally males are produced from unfertilised eggs, but generally individuals are monoecious with a female-like nature but possessing an ovotestis (a part-testis, part-ovary organ) and sperm is transmitted ovarially from the female to her young. The existence of both hermaphrodites and males in a species is known as androdioecy. This hermaphroditic sexual self-sufficiency, where a single individual can populate new territory, has contributed to the invasive spread of the cottony-cushion scale insect away from its native Austr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophlebidae
Monophlebidae is a family of scale insects commonly known as the giant scales or monophlebids. They occur in most parts of the world but more genera are found in the tropics than elsewhere.UDSA Agricultural Research Service The cottony cushion scale, ''Icerya purchasi'', is a serious commercial pest on many families of woody plants, including ''Citrus''. It has spread worldwide from Australia. Taxonomy At one time, Monophlebidae was considered to be a subfamily of Margarodidae. However the family Margarodidae showed great Morphology (biology), morphological and Biology, biological variation and William Miles Maskell, Maskell first recognised Monophlebidae as a separate family in 1880. The giant scales are mo ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
