|
Lauritrioza Alacris
''Lauritrioza'' is a monotypic genus of sap-sucking Psyllid bugs in the family Triozidae. The single species ''Lauritrioza alacris'' (originally described as ''Trioza alacris'') creates galls on the leaves of ''Laurus'' species: mostly in Europe, including the British Isles, but also introduced to western N. America.GBIF: ''Lauritrioza'' Conci & Tamanini, 1986 (retrieved 29 March 2025)  Description of the gall ''Lauritrioza alacris'' causes the edges of leaves to thicken and roll downwards forming pale, elongated pouches. The galls can house two generations in a summer, of up to thirty ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psylloidea
Psylloidea is a Taxonomic rank, superfamily of Hemiptera, true bugs, including the jumping plant louse, jumping plant lice and others which have recently been classified as distinct families. Though the group first appeared during the Early Jurassic, modern members of the group do not appear until the Eocene, and Mesozoic members of the order are usually assigned to the possibly Paraphyly, paraphyletic family Liadopsyllidae. Families The following Extant taxon, extant families are included:Burckhardt D, Ouvrard D, Percy DM (2021) An updated classification of the jumping plant-lice (Hemiptera: Psylloidea) integrating molecular and morphological evidence. ''European Journal of Taxonomy'' 736: 137–182DOI/ref> # Aphalaridae (includes Phacopteronidae, now a subfamily) # Calophyidae # Carsidaridae (includes Homotominae) # Liviidae # Mastigimatidae # Psyllidae # Triozidae In addition, the following extinct families are recognised: * †Liadopsyllidae * †Malmopsyllidae * †Neop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiptera
Hemiptera (; ) is an order of insects, commonly called true bugs, comprising more than 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, assassin bugs, bed bugs, and shield bugs. They range in size from to around , and share a common arrangement of piercing-sucking mouthparts. The name "true bugs" is sometimes limited to the suborder Heteroptera. Entomologists reserve the term ''bug'' for Hemiptera or Heteroptera,Gilbert Waldbauer. ''The Handy Bug Answer Book.'' Visible Ink, 1998p. 1. which does not include other arthropods or insects of other orders such as ants, bees, beetles, or butterflies. In some varieties of English, all terrestrial arthropods (including non-insect arachnids and myriapods) also fall under the colloquial understanding of ''bug''. Many insects with "bug" in their common name, especially in American English, belong to other orders; for example, the lovebug is a fly and the Maybug and ladybug are beetles. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triozidae
Triozidae is one of seven families, collectively referred to as Psylloidea, plant lice, based on the type genus ''Trioza''. They had traditionally been considered part of a single family, Psyllidae, but recent classifications divide the superfamily into a total of seven families; most of the genera remain in the Psyllidae, but Triozidae is the third-largest family in the group. The family contains a number of agricultural pest species including: * ''Baeoalitriozus diospyri'', the persimmon psyllid * ''Bactericera cockerelli'', the potato psyllid * ''Lauritrioza alacris'', infesting Laurus nobilis, bay trees and their relatives * ''Trioza erytreae'', the African citrus psyllid Genera The Global Biodiversity Information FacilityGlobal Biodiversity Information Facility: Family Triozidae (retrieved 30 March 202 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gall
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria, to other plants, insects and mites. Plant galls can be such highly organized structures that their cause can be determined without the actual agent being identified. This applies particularly to insect and mite plant galls. The study of plant galls is known as cecidology. Anatomy Shape and size Galls develop on various plant organs, providing nutrition and shelter to inducing insects. Galls display vast variation in morphology, size, and wall composition. The size of insect galls can range significantly, from approximately two inches in diameter to less than one-sixteenth of an inch. Some galls are so small that they are merely slightly thick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurus
''Laurus'' () is a genus of evergreen trees or shrubs belonging to the laurel family, Lauraceae. The genus contains three or more species, including the bay laurel or sweet bay, ''L. nobilis'', widely cultivated as an ornamental plant and a culinary herb. Description They are slow-growing, large, evergreen aromatic shrubs or trees with alternate, ovate leaves and insignificant yellow male and female flowers borne on separate plants (dioecious). They are frost-hardy but in temperate zones they require a sheltered spot in full sun that is not subject to prolonged freezing. Plants in pots can be moved into a cold greenhouse during the winter months. Species The number of species in the genus has not yet been fully resolved. Three species are currently accepted: *'' Laurus azorica'', – Azores laurel. Native to the Azores. *''Laurus nobilis'' – bay laurel, true laurel, or sweet bay. Native to the Mediterranean region. Used as an ornamental plant and culinary herb (one type o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trioza Alacris Gall On Bay
''Trioza'' is the type genus of sap-sucking bugs in the family Triozidae; it has a world-wide distribution. Species The Global Biodiversity Information Facility lists:Global Biodiversity Information Facility: ''Trioza'' Förster, 1848 (retrieved 3 February 2025) # '''' # '''' # '''' # '' |
