|
Diaspididae
Diaspididae is the largest family of scale insects with over 2650 described species in around 400 genera. As with all scale insects, the female produces a waxy protective scale beneath which it feeds on its host plant. Diaspidid scales are far more substantial than those of most other families, incorporating the exuviae from the first two nymphal instars and sometimes faecal matter and fragments of the host plant. These can be complex and extremely waterproof structures rather resembling a suit of armor. For this reason these insects are commonly referred to as armored scale insects. As it is so robust and firmly attached to the host plant, the scale often persists long after the insect has died. Some African Diaspididae are attended by ants of genus '' Melissotarsus''. The ants appear to consume the armored scales because Diaspididae are completely naked when ant-attended; the ant nest itself remains completely hidden under the bark of the tree. Selected species Well-known spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaspididae
Diaspididae is the largest family of scale insects with over 2650 described species in around 400 genera. As with all scale insects, the female produces a waxy protective scale beneath which it feeds on its host plant. Diaspidid scales are far more substantial than those of most other families, incorporating the exuviae from the first two nymphal instars and sometimes faecal matter and fragments of the host plant. These can be complex and extremely waterproof structures rather resembling a suit of armor. For this reason these insects are commonly referred to as armored scale insects. As it is so robust and firmly attached to the host plant, the scale often persists long after the insect has died. Some African Diaspididae are attended by ants of genus '' Melissotarsus''. The ants appear to consume the armored scales because Diaspididae are completely naked when ant-attended; the ant nest itself remains completely hidden under the bark of the tree. Selected species Well-known spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aonidomytilus Crookiae
''Aonidomytilus crookiae'' is a species of scale insect in the family Diaspididae which are often referred to as "armored scale insects."Kosztarab, M. 1963. The Armored Scale Insects of Ohio (Homoptera: Coccoidea: Diaspididae). ''Bulletin of the Ohio Biological Survey'' 2 (n.s.): 120 pp. It is commonly known as "St. John's Wort Scale."Global Biodiversity Information Facility: ''Aonidomytilus crookiae'' (Ferris, 1954), https://www.gbif-uat.org/species/110091227, accessed 15 Dec 2017. Originally named ''Nelaspis crookiae'' by Gordon Floyd Ferris in 1954,Ferris, G.F. 1954. New species of Diaspididae from Florida and the Caribbean Islands (Homoptera; Coccoidea). Contribution No. 88. ''Microentomology'' 19: 41-50. the taxon was moved to the genus ''Aonidomytilus'' in 1984Muse, B.J. Williams, M.L. 1984. Effects of temperature, host plant and aridity on taxonomic characters of armored scale insects (Homoptera: Diaspididae). ''Proceedings of the 10th International Symposium of Central ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale Insects
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the superfamily Coccoidea due to taxonomic uncertainties. Adult females typically have soft bodies and no limbs, and are concealed underneath domed scales, extruding quantities of wax for protection. Some species are hermaphroditic, with a combined ovotestis instead of separate ovaries and testes. Males, in the species where they occur, have legs and sometimes wings, and resemble small flies. Scale insects are herbivores, piercing plant tissues with their mouthparts and remaining in one place, feeding on sap. The excess fluid they imbibe is secreted as honeydew on which sooty mold tends to grow. The insects often have a mutualistic relationship with ants, which feed on the honeydew and protect them from predators. There are about 8,000 d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale Insect
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the superfamily Coccoidea due to taxonomic uncertainties. Adult females typically have soft bodies and no limbs, and are concealed underneath domed scales, extruding quantities of wax for protection. Some species are hermaphroditic, with a combined ovotestis instead of separate ovaries and testes. Males, in the species where they occur, have legs and sometimes wings, and resemble small flies. Scale insects are herbivores, piercing plant tissues with their mouthparts and remaining in one place, feeding on sap. The excess fluid they imbibe is secreted as honeydew on which sooty mold tends to grow. The insects often have a mutualistic relationship with ants, which feed on the honeydew and protect them from predators. There are about 8,000 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aulacaspis Yasumatsui
''Aulacaspis yasumatsui'', or cycad aulacaspis scale (CAS), is a scale insect species in the genus '' Aulacaspis'' that feeds on cycad species such as ''Cycas revoluta''Aulacaspis yasumatsui (Hemiptera: Sternorrhyncha: Diaspididae), a Scale Insect Pest of Cycads Recently Introduced into Florida. Forrest W. Howard, Avas Hamon, Michael Mclaughlin, Thomas Weissling and Si-lin Yang, The Florida Entomologist, March 1999, Vol. 82, No. 1, pages 14–27article or '' Dioon purpusii'' (Purpus' cycad). Other common names include the cycad scale, the sago palm scale, and the Asian cycad scale. This is a serious pest of cycads which can kill its host plant. Description The adult female cycad aulacaspis scale has a flattened, circular or pear-shaped cover, often distorted in shape by the close proximity of leaf veins or other scale insects. The cover is white, and may be translucent enough to see the orange coloured insect with its orange eggs beneath. White or pale yellow shed skins are seen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiberlesia Lataniae
''Hemiberlesia lataniae'', the latania or palm scale, is a species of armored scale insect in the family Diaspididae. It was first described by the French entomologist Victor Antoine Signoret in 1869 using '' Latania lontaroides'', a species of palm tree endemic to Réunion as its host; since then, it has been found on avocado trees growing in South Africa, Australia, Israel, the United States, and on a range of other plants in many parts of the world. Description Scale insects have a domed, waxy covering which protects the soft-bodied insect below. Armored scales retain the exuviae (shed cuticles) from the first one or two nymphal stages, and sometimes faecal matter and fragments of the host plant, incorporating these into a hard, protective cover. The adult female palm scale has no wings or legs and is somewhat variable in appearance depending on where it is living; if feeding on leaves, the scale cover is circular and convex, and its colour tends to be greyish-white, while o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melissotarsus
''Melissotarsus'' is a rare African genus of ants in the subfamily Myrmicinae. They are known from the Afrotropics and Malagasy regions, where their nests are located in living wood, built by tunneling through the wood under the bark. They are rarely seen outside of their nests, which may contribute to their perceived rarity. However, they are considered pest insects because of damage they can cause to trees, including economically important ones such as mangos and trees in the family Burseraceae, including ''Aucoumea klaineana'', '' Dacryodes buettneri'', and '' Dacryodes edulis''. ''Melissotarsus'' live in association with armored scale insects, family Diaspididae Diaspididae is the largest family of scale insects with over 2650 described species in around 400 genera. As with all scale insects, the female produces a waxy protective scale beneath which it feeds on its host plant. Diaspidid scales are far mo .... A study in Cameroon estimated that a single '' Dacryodes e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carulaspis Minima
''Carulaspis minima'' is an armoured scale insect, in the subtribe Diaspidina of the family Diaspididae, and is commonly known as the minute cypress scale. It was first described in 1869 by the French entomologist Victor Antoine Signoret. It feeds on evergreen conifers in the families Cephalotaxaceae, Cupressaceae and Taxodiaceae. Description ''Carulaspis minima'' grows to a maximum length of about . The scale covering the adult female is circular and convex, white with a yellowish-brown central portion; the female nymph is similar, but smaller. The adult male has an elongate whitish scale with the yellowish-brown remnants of the exuviae on the posterior end. The male nymph has a whitish felt-like appearance with longitudinal ridges. It is very difficult to distinguish it from the juniper scale (''Carulaspis juniperi''). Life cycle The adult female scale overwinters on the host tree and lays a batch of eggs which are retained under the scale. These hatch into "crawlers", nym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadraspidiotus Juglansregiae
''Quadraspidiotus juglansregiae'', commonly known as the walnut scale, is a species of armoured scale insect in the family Diaspididae. It is native to North America where it feeds on a wide range of ornamental and forest trees and bushes. Description Adult and young female ''Quadraspidiotus juglansregiae'' are nearly circular, the insect being hidden under a tough flattish scale composed of the exuviae from the first two nymphal instars. There are small marginal notches between the prothorax, mesothorax and metathorax. The upper surface of the scale is pale grey with a reddish-brown spot, and the underside is yellowish. The adult female is about long while the nymphs are smaller. Male nymphs are similar, except that the scale is oval rather than round; after the last moult, the adult male emerges as a small, winged insects similar to a fly in appearance. Male nymphs sometimes burrow under the rim of a female scale forming a daisy-shaped group. Distribution and habitat ''Quadr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidosaphes Beckii
''Lepidosaphes beckii'' also known as purple scale, mussel scale, citrus mussel scale, orange scale, comma scale and mussel purple scale is a scale insect that is a pest of ''Citrus'' trees. The small insects attach themselves to leaves, fruits and small branches and cause injury by sucking the tree's sap.Citrus mussel scale HYPPZ, accessed 22 January 2012. The specific name ''beckii'' is in honour of historian Richard Beck. Description ''Lepidosaphes beckii'' was originally described under the name ''Coccus beckii'' by English entomologist Edward Newman f ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Scale Insect")
