A key to the flat grass scale genus Nipponaclerda (Hemiptera, Coccomorpha, Aclerdidae)

Published on Sep 9, 2019in ZooKeys1.143
路 DOI :10.3897/zookeys.862.35294
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1 Author (Yair Ben-Dov)
1 Citations
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Common reed, Phragmites australis (Cav.) Trin. Ex Steud., is the dominant emergent vegetation in the lower Mississippi River Delta (MRD), Louisiana, USA and is comprised primarily of introduced lineages of different phylogeographic origins. Dense stands of P. australis are important for protecting marsh soils from wave action and storm surges. In the Fall of 2016, while investigating symptoms of die-back of Phragmites stands in the lower marsh, a non-native scale was found infesting affected sta...
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Scale insects (Hemiptera: Coccoidea) are small herbivorous insects found on all continents except Antarctica. They are extremely invasive, and many species are serious agricultural pests. They are also emerging models for studies of the evolution of genetic systems, endosymbiosis and plant-insect interactions. ScaleNet was launched in 1995 to provide insect identifiers, pest managers, insect systematists, evolutionary biologists and ecologists efficient access to information about scale insect b...
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Abstract The largest Phragmites reed field in the world, with a historical area of approximately 1000聽km 2 , is located in the Liaohe Delta in northeastern China. The Phragmites wetlands are extensively managed to maximize the production of reed biomass for the paper industry. Based on satellite remote sensing we estimated that the total area of the Phragmites wetlands has decreased from 857聽km 2 in 2003 to 786聽km 2 in 2009 to accommodate oil field infrastructure and societal developments. Howev...
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Insectivorous birds can provide important ecosystem services, including regulating insect populations. The function of insectivorous birds in wetland ecosystems, such as tidal marshes, however, remains largely unexplored. Most studies of top-down interactions between insectivorous birds and herbivorous insects focus on insects in exposed-feeding guilds, but rarely on those in concealed-feeding guilds. In a reed-dominated estuarine tidal marsh, we examined the impacts of insectivorous birds on th...
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Seasonal changes in the abundance of five species of hymenopterous parasitoids (four species of Encyrtidae and one species of Eulophidae) attacking the scale insect Nipponaclerda biwakoensis on the common reed were investigated for 2聽years in Lake Biwa, with special reference to predation by the reed bunting, Emberiza schoeniclus, during winter. The scales settled on reed shoot stems under sheath leaves, passing through three discrete generations per year. The abundance of adult female scales in...
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Within-shoot vertical distributions of the scale insect Nipponaclerda biwakoensis, five species of gregarious parasitoid wasps attacking the scale, and successful multiparasitism (emergence of multiple parasitoid species from a single host) by the parasitoids on the common reed were investigated. Each reed shoot collected was longer than 2.0聽m, and was divided into pieces of 0.5聽m each from the base of the shoot. The mean number of adult female scales per 0.5聽m of shoot increased with height, bu...
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Abstract A new aclerdid genus, Lecanaclerda Hodgson & Millar, closely related to Aclerda but with fully developed legs and antennae, is introduced for a new new species, L. macropoda Hodgson & Millar, for which the male and female are described. In addition, genus Rhodesaclerda McConnell is revised and all known stages of existing species, R. combreticola McConnell and R. halli McConnell, are redescribed. The crawler, second-instar female, pupa and the adult male and female of a new species, R. ...
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Successful multiparasitism by five parasitoid wasps of the scale insectNipponaclerda biwakoensis was investigated at a reed bed in Lake Biwa. The wasps were gregarious endoparasitoids consuming the entire body of the host. The rate of successful multiparasitism for a parasitoid species was defined as the proportion of the number of individual hosts from which the species emergedwith other species to the total number of hosts from which the species emerged. The rates were high for each parasitoid...
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