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Unaspis can infest the leaves of plants in the genus Euonymus Unaspis is a genus of armored scale insects in the family Diaspididae . There are at least two described species in Unaspis .
It preys on scale insects living on Euonymus species. The elytra are brown-black, with two reddish round spots. It measures about 3–5 millimetres (1 ⁄ 8 – 3 ⁄ 16 in) long. This lady beetle was deliberately introduced to the United States by Marlatt in 1902 to control the San Jose Scale, an early example of biocontrol. [1]
Pseudaulacaspis pentagona is native to eastern Asia but has been accidentally introduced into many other warm and temperate parts of the world. In Europe, it was first detected in Italy in the nineteenth century and is now additionally found in Azerbaijan, Bulgaria, France, Georgia, Germany, Greece, Hungary, Macedonia, Malta, Montenegro, Netherlands, Portugal, Russia, Serbia, Spain, Sweden ...
Lepidosaphes ussuriensis (Borchsenius, 1962) (dark oystershell scale) Lepidosaphes vermiculus Mamet, 1937 (elongate coconut scale) Lepidosaphes viticis (Takagi, 1970) Lepidosaphes xishuanbannae (Young & Hu, 1981) Lepidosaphes yamahoi Takahashi, 1935; Lepidosaphes yanagicola Kuwana, 1925 (Euonymus Alatus scale) Lepidosaphes yoshimotoi Takagi, 1970
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 ...
Scales have no legs that are visible to the naked eye and are small, motionless insects that vary in appearance depending on the sex and age of the scale. [20] Euonymus scales pierce the leaf or stem of the Euonymus plant and feed on the sap. [20] The initial indication of an infestation of euonymus scale on the plant is the development of ...
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.
Scales are present on the bodies of various insects. A notable example are the Lepidoptera, the insect order comprising moths and butterflies, which have scales on their wings and on the head, parts of the thorax and abdomen, and parts of the genitalia. The name is derived from Ancient Greek λεπίδος (scale) and πτερόν (wing). [1]
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