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.
In biology, a lerp is a structure of crystallized honeydew produced by larvae of psyllid bugs as a protective cover. These animals are commonly referred to as lerp insects, of which there are over 300 species in Australia.
Cacopsylla melanoneura is an insect of the Psyllidae family. It mainly feeds on Hawthorn. The insect will also feed on apple trees and is considered the main vector of the phytoplasma disease "Ca. Phytoplasma mali" in northwestern Italy.
Triozidae is one of seven families collectively referred to as jumping plant lice. They have traditionally been considered part of a single family, Psyllidae, but recent classifications divide the group into a total of seven families; most of the genera remain in the Psyllidae, but Triozidae is the second-largest family in the group, containing 27 genera, and a number of pest species.
Aphalaridae is a bug family in the superfamily Psylloidea.
Calophyidae is a bug family in the superfamily Psylloidea.
Carsidaridae is a bug family in the superfamily Psylloidea, with a world-wide distribution; the type genus Carsidara is from eastern Asia.
Homotomidae is a family of small phloem-feeding bugs in the superfamily Psylloidea, or jumping plantlice.
Phacopteronidae is a bug family in the superfamily Psylloidea.
Rhinocolinae is a subfamily of jumping plant louse in the family Aphalaridae.
Aphalarini is a tribe of jumping plant lice (psyllid) in the subfamily Aphalarinae, first described by Franz Löw in 1879.
Garuga pinnata is a deciduous tree species from the family Burseraceae.
Tetrastichinae is a subfamily of the chalcid wasp family Eulophidae. It is one of the largest subfamilies of the Eulophidae containing over 100 genera and nearly 3,000 species. The species of the family Tetrastichinae are found in almost any type of terrestrial habitat and have a worldwide distribution, except Antarctica. They show a varied biology and hosts for Tetrastichinae wasps have been identified from over 100 different insect families, across 10 different orders and they have also been recorded as being parasitoids on nematodes, mites and spiders' eggs. Some species are even phytophagous, while others are inquilines and yet others are gall formers.
John Stuart Noyes is a Welsh entomologist.
Pachypsylla celtidismamma, known generally as the hackberry nipplegall maker or hackberry psylla, is a species of plant-parasitic hemipteran in the family Aphalaridae.
Frej Ossiannilsson was a Swedish entomologist who specialized in Auchenorrhyncha, and is known also for discovering vibrational communication of insects. He is considered a pioneer of biotremology for work on behavioural and anatomical basis of vibrational communication.
Liviidae is a family of plant-parasitic hemipterans in the order Hemiptera. There are more than 20 genera and 370 described species in Liviidae.
Glycaspis is a genus of plant-parasitic insects in the family Aphalaridae. There are at least two described species in Glycaspis.
Miris striatus is a Palearctic species of bugs that constitutes the type species of the type genus of the family Miridae. It has been reported to be a predator of psyllids such as Cacopsylla melanoneura.
Liadopsyllidae is an extinct family of hemipteran insects belonging to Psylloidea ranging from the Early Jurassic to Upper Cretaceous. The family was named by Andrey Vasilyevich Martynov in 1926. They are the earliest known members of Psylloidea, with modern members of the group not known until the Paleogene, as such, they have been suggested to be a paraphyletic assemblage ancestral to modern psylloids. The family Malmopsyllidae has been subsumed into this family, but is considered distinct by some authors.
