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17 results on '"Aguin-Pombo, Dora"'

10. The two-spotted leafhopper, Sophonia orientalis,(Hemiptera: Cicadellidae): a new threat to European vineyards

Author

Aguin-Pombo, Dora, Aguiar, António M. F., Cravo, Délia, Miralles-Nuñez, Adrià, Luque-Arnau, Noemí, Valero, Pablo, and Sabaté, Jordi

Abstract

Hemiptera are the second insect order with the highest proportion of exotic species in Europe. The main disease vectors in vineyards are introduced species of leafhoppers. The Asian two-spotted leafhopper has been recorded once on grapevines, but its relationship to this crop was unknown. More than 90 000 specimens were collected during a 9-year monitoring period with yellow-sticky traps on Madeira Island. This material and visual counts of nymphs on leaves confirm for the first time that grapevine is its host plant and that populations in vineyards are large throughout the grapevine growing season. Additional sampling to determine its current distribution range in Europe shows that it is spreading rapidly in the Macaronesian archipelagos and in the Iberian Peninsula, having already reached the French border. Twenty-four new food plants in Europe are reported with ornamentals being the most likely invasion pathway. Fieldwork observations from science platforms show that it breeds throughout the year between 10º and 38º latitude. These data, together with its good performance in wide environmental conditions and a history of previous successful invasions, strongly suggest that this species is a new threat to European vineyards. Control measures and more studies on plant damage and its potential for pathogen transmission are proposed.

Published
2023
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15. Comparative cytogenetics of Auchenorrhyncha (Hemiptera, Homoptera): a review

Author

Kuznetsova, Valentina G. and Aguin-Pombo, Dora

Subjects
Fulgoroidea, Cicadoidea, chromosome evolution, chromosome numbers, polymorphism, Myerslopioidea, Fulgoromorpha, Cercopoidea, Chromosome structure, meiosis, B-chromosomes, Membracoidea, polyploidy, sex chromosome systems, Cicadomorpha
Abstract

A comprehensive review of cytogenetic features is provided for the large hemipteran suborder Auchenorrhyncha, which currently contains approximately 42,000 valid species. This review is based on the analysis of 819 species, 483 genera, and 31 families representing all presently recognized Auchenorrhyncha superfamilies, e.i. Cicadoidea (cicadas), Cercopoidea (spittle bugs), Membracoidea (leafhoppers and treehoppers), Myerslopioidea (ground-dwelling leafhoppers), and Fulgoroidea (planthoppers). History and present status of chromosome studies are described, as well as the structure of chromosomes, chromosome counts, trends and mechanisms of evolution of karyotypes and sex determining systems, their variation at different taxonomic levels and most characteristic (modal) states, occurrence of parthenogenesis, polyploidy, B-chromosomes and chromosome rearrangements, and methods used for cytogenetic analysis of Auchenorrhyncha.

Published
2015
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