Results 151 to 160 of about 1,887 (185)
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Density-Related Migration in Planthoppers (Homoptera: Delphacidae): The Role of Habitat Persistence

The American Naturalist, 1991
We investigated the selective pressures associated with the possession of wings and migration in wing-dimorphic planthoppers (Homoptera: Delphacidae).
Robert F. Denno   +3 more
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A revision of the planthopper genus Chionomus Fennah (Hemiptera: Fulgoroidea: Delphacidae)

Zootaxa, 2020
The planthopper genus Chionomus Fennah, 1971 (Hemiptera: Fulgoroidea: Delphacidae) currently includes three Neotropical species, removed from the polyphyletic genus Delphacodes Fieber, 1866. Morphological and molecular evidence further redefine Chionomus to include ten additional species (eight species removed from Delphacodes, two described as new ...
KATHRYN M. WEGLARZ, CHARLES R BARTLETT
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Hybridization studies in the planthopper genus Ribautodelphax (Homoptera, Delphacidae)

Genetica, 1988
Seven known Ribautodelphax species and four recently discovered taxa were crossed. Forty-three percent of the interspecific crosses were successful. Interspecific crosses generally resulted in low numbers of hybrids. In some combinations prolonged larval development of the hybrid males was observed.
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Cell culture of the rice brown planthopper, Nilaparvata lugens Stål (Hemiptera: Delphacidae)

In Vitro Cellular & Developmental Biology - Animal, 2014
The rice brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most destructive insect pests of rice in Asia. Although resistant rice varieties can be effective in managing planthopper populations, BPH has repeatedly been able to overcome resistant rice varieties. It is possible that BPH adaptation to resistant rice varieties may be related
Yipeng, Xu   +2 more
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Diversity in New World Stenocranine Planthoppers (Hemiptera: Delphacidae)

Transactions of the American Entomological Society, 2009
ABSTRACT. The diversity of stenocranine planthoppers and their reported host plants is reviewed and discussed with particular reference to the New World fauna. A new species of Obtusicranus and two new genera (Frameus n. g. with 5 new species, Tanycranus n. g. with 1 new species) are described and illustrated.
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ARGONAUTE SUBFAMILY GENES IN THE SMALL BROWN PLANTHOPPER, Laodelphax striatellus (HEMIPTERA: DELPHACIDAE)

Archives of Insect Biochemistry and Physiology, 2015
Argonaute (AGO) proteins are essential catalytic components of the RNA‐induced silencing complex and play central roles in RNA interference. Using a combination of bioinformatics and rapid amplification of cDNA ends (RACE) methods, putative AGO subfamily members, ls‐AGO1 and ls‐AGO2, were cloned and characterized from the small brown planthopper ...
Yan-Ru, Zhou   +5 more
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Genetic control and evolution of acoustic signals in planthoppers (Homoptera: Delphacidae)

Population Ecology, 1995
Abstract Acoustic signals are part of the specific mate recognition system of planthoppers. The genetic control of acoustic signal characters was studied in the planthopper Ribautodelphax imitans .
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Host plant relations in the planthopper genus Ribautodelphax (Homoptera, Delphacidae)

Ecological Entomology, 1987
ABSTRACT. 1. Host plant relations of closely related species and pseudogamous triploid forms of the planthopper genus Ribautodelphax were studied. 2.
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Reproductive isolation inProkelisia planthoppers (Homoptera: Delphacidae): Acoustic differentiation and hybridization failure

Journal of Insect Behavior, 1991
Males and females of Prokelisia marginata (Van Duzee) and Prokelisia dolusWilson communicate through substrate-transmitted vibrations. The acoustic signals (attraction and courtship calls) of these planthoppers are effective in mate location, attraction, and mate choice.
Susan E. Heady, Robert F. Denno
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