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Psylla | |
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Psylla alni | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hemiptera |
Suborder: | Sternorrhyncha |
Family: | Psyllidae |
Subfamily: | Psyllinae |
Genus: | Psylla Geoffroy, 1762 |
Diversity | |
at least 110 species |
Psylla (from the Greek psulla, meaning flea) is a genus of sap-sucking insects belonging to the order Hemiptera. There are at least 110 described species in Psylla. [1] [2] [3] Species within the genus feed on various host plants.
Some harmful species commonly known as flies belong to neighbouring genera, such as Cacopsylla (which includes most of the pyslla harmful to fruit trees), the Albizia fly ( Acizzia jamatonica , from the Psyllidae family) and the laurel fly ( Trioza alacris ).
Hemiptera is an order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, assassin bugs, bed bugs, and shield bugs. They range in size from 1 mm (0.04 in) to around 15 cm (6 in), and share a common arrangement of piercing-sucking mouthparts. The name "true bugs" is often limited to the suborder Heteroptera.
Whiteflies are Hemipterans that typically feed on the undersides of plant leaves. They comprise the family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than 1550 species have been described.
Albizia is a genus of more than 160 species of mostly fast-growing subtropical and tropical trees and shrubs in the subfamily Mimosoideae of the family Fabaceae. The genus is pantropical, occurring in Asia, Africa, Madagascar, America and Australia, but mostly in the Old World tropics. In some locations, some species are considered weeds.
Psyllidae, the jumping plant lice or psyllids, are a family of small plant-feeding insects that tend to be very host-specific, i.e. each plant-louse species only feeds on one plant species (monophagous) or feeds on a few closely related plants (oligophagous). Together with aphids, phylloxerans, scale insects and whiteflies, they form the group called Sternorrhyncha, which is considered to be the most "primitive" group within the true bugs (Hemiptera). They have traditionally been considered a single family, Psyllidae, but recent classifications divide the group into a total of seven families; the present restricted definition still includes more than 70 genera in the Psyllidae. Psyllid fossils have been found from the Early Permian before the flowering plants evolved. The explosive diversification of the flowering plants in the Cretaceous was paralleled by a massive diversification of associated insects, and many of the morphological and metabolic characters that the flowering plants exhibit may have evolved as defenses against herbivorous insects.
Nepidae is a family of exclusively aquatic Heteropteran insects in the order Hemiptera. They are commonly called water scorpions for their superficial resemblance to scorpions, due to their raptorial forelegs and the presence of a long slender process at the posterior end of the abdomen, resembling a tail. There are 14 genera in the family, in two subfamilies, Nepinae and Ranatrinae. Members of the genus Ranatra, the most widespread and species-rich genus, are sometimes called needle bugs or water stick insects as they are slenderer than Nepa.
The Sternorrhyncha suborder of the Hemiptera contains the aphids, whiteflies, and scale insects, groups which were traditionally included in the now-obsolete order "Homoptera". "Sternorrhyncha" refers to the rearward position of the mouthparts relative to the head.
The genus Orius consists of omnivorous bugs in the family Anthocoridae. Adults are 2–5 mm long and feed mostly on smaller insects, larva and eggs, such as spider mites, thrips, jumping plant lice, and white fly, but will also feed on pollen and vascular sap.
Albizia lebbeck is a species of plant in the family Fabaceae, native to the Indian subcontinent and Myanmar. It is widely cultivated and naturalised in other tropical and subtropical regions, including Australia. Common names in English include siris, Indian siris, East Indian walnut, Broome raintree, lebbeck, lebbek tree, frywood, koko and woman's tongue tree. The latter name is a play on the sound the seeds make as they rattle inside the pods. Siris is also a common name of the genus Albizia.
Psylla pyri, commonly known as the pear psylla or pear psyllid, is an insect in the family Psyllidae. Originating in Europe and Asia, it has spread to North America. It is a pest of pear trees, sucking the sap, damaging the foliage, flowers and fruit and diminishing the crop.
Acizzia is a genus of psyllids that primarily feed on Acacia and Albizia species. Many species are known from Australia and have become widespread as their host plants are popular garden specimens. Damage to the leaves is generally mild. Economic damage on plantation species is occasionally reported.
Diaphorina citri, the Asian citrus psyllid, is a sap-sucking, hemipteran bug now in the taxonomic family Psyllidae. It is one of two confirmed vectors of citrus greening disease. It has a wide distribution in southern Asia and has spread to other citrus growing regions.
Acizzia solanicola is a psyllid from Australia, found on plants of the genus Solanum. It has subsequently been found also in New Zealand.
Anthocoris nemoralis is a true bug in the family Anthocoridae. The species is native to Europe and is introduced in North America. It is a predator of aphids, spider mites and jumping plant lice, and is therefore used as a biological pest control agent.
Psyllinae is a subfamily of plant-parasitic hemipterans in the family Psyllidae. There are about 12 genera and at least 40 described species in Psyllinae.
Deraeocoris brevis is a species of predatory plant bug in the family Miridae. It is native to North America where it feeds on plant pests in apple and pear orchards.
Cacopsylla pyricola, commonly known as the pear sucker, is a true bug in the family Psyllidae and is a pest of pear trees (Pyrus). It originated in Europe, was introduced to the United States in the early nineteenth century and spread across the country in the next century.
Psylla alni is a species of psyllid, a plant-feeding hemipteran in the family Psyllidae.
Spanioneura fonscolombii, is a species of plant-parasitic psyllid in the family Psyllidae which feed on box. It was first described by Arnold Förster in 1848 and is found in Europe. It is also found in the United States of America where it was accidentally introduced.
Psylla frodobagginsi or the hobbit kōwhai psyllid is a species of psyllid, a plant-feeding hemipteran in the family Psyllidae. It is endemic to New Zealand and is found only on New Zealand kōwhai trees and is named after the character Frodo Baggins from The Lord of the Rings.