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Showing 1 to 20 of 41 for “"Homoptera"”.
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Brutpflege, Lebensgeschichte und Taxonomie südostasiatischer Membraciden (Insecta: Homoptera)
… Brutpflege bei südostasiatischen Buckelzirpen (Homoptera: Membracidae) sowie verhaltensökologische Aspekte dieses Verhaltens bei Pyrgauchenia tristaniopsis. Ergänzend dazu wurden Aspekte der Taxonomie, Lebensgeschichte, Reproduktionsbiologie und Morphometrie dieser Art untersucht, deren Kenntnis …
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Induced Walking Behavior of Rhopalosiphum Padi L. (Homoptera: Aphididae)
Movement of apterous adults and fourth instar nymphs was monitored following different perturbations and combination of perturbations. Apterous aphids, caged overnight on oat plants in a 25-plant infestation focus in the center of each 900-plant plot, were subjected to a given perturbation or …
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The armored scale insects of Venezuela (Homoptera: Coccoidea: Diaspididae)
Scale insects are among the most serious plant pests throughout the world. The Diaspididae is the largest scale insect family and probably the most important economically. No comprehensive taxonomic study dealing with the scale insects of Venezuela has been conducted in the past. Forty-nine species …
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The Phylogeny of Deltocephalus and Allied Genera (Homoptera: Cicadellidae: Deltocephalinae)
Made available in DSpace on 2014-12-05T21:34:04Z (GMT). No. of bitstreams: 1 6104332.pdf: 4633101 bytes, checksum: bba18ce653a0962c78b7d45dfcc40bca (MD5) Previous issue date: 1961
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A Phylogenetic Study of the Leafhopper Genus Empoasca (Homoptera, Cicadellidae)
Made available in DSpace on 2014-12-05T21:34:06Z (GMT). No. of bitstreams: 1 6206124.pdf: 1986788 bytes, checksum: d655d92711947ad1b40c1888ee5a19ea (MD5) Previous issue date: 1962
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Morphological and biological studies on two species of Chionaspis (Homoptera: Coccoidea: Diaspididae)
Morphological studies in the past have been almost exclusively confined to the description and illustration of adult females. Morphological studies of Diaspididae were further restricted to the pygidial area. This study is an attempt to provide complete descriptions, illustrations, and measurements …
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Physiological Studies on the Nutrition of the Mealybug Pseudococcus Citri(risso) (Homoptera: Coccidae)
Made available in DSpace on 2015-05-12T17:15:36Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0005968.PDF: 3490853 bytes, checksum: ed1073246dc176d575fe223b964c34a0 (MD5) Previous issue date: 1953
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Kisaran inang kutu kebul Bemisia tabaci Gennadius (Homoptera: Aleyrodidae) pada tanaman budidaya dan gulma
INDONESIA: Kutu kebul (Bemisia tabaci Gen, Homoptera: Aleyrodidae) adalah hama polifag yang menyerang berbagai jenis tanaman budidaya dan gulma. Dinamika populasi kutu kebul salah satunya ditentukan oleh keragaman jenis inang. Inang adalah tumbuhan yang dapat memenuhi kebutuhan serangga, baik yang …
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A study of the life history and spotting habits of Eutettix chenopodiae (Homoptera, Cicadellidae)
Thesis (M.A.)--University of Kansas, Entomology, 1927.
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A revision of the North American species of Typhlocyba and its allies (Homoptera, Cicadellidae)
Dissertation (Ph.D.)--University of Kansas, Entomology, 1952.
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Mecanismos de ação da cobertura morta sobre populações de pulgões (Homoptera, Aphididae) em couve
… de Brevicoryne brassicae (Linnaeus 1758) (Homoptera, Aphididae) e de Myzus persicae (Sulzer 1776) (Homoptera, Aphididae), em couve comum “Manteiga da Fazenda” (Brassica oleraceae var. acephala). Foram instalados três experimentos de campo na Horta Velha da Universidade Federal de Viçosa, …
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Competition and Coexistence Among Eight Species of Erythroneura Leafhoppers (Homoptera: Cicadellidae) on American Sycamore
Made available in DSpace on 2014-12-14T07:03:55Z (GMT). No. of bitstreams: 1 7606865.pdf: 3035924 bytes, checksum: eb560f046ba713c7829cebadd958313d (MD5) Previous issue date: 1975
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Morphology and systematics of the adult females of the genus Lecanodiaspis (Homoptera: Coccoidea: Lecanodiaspididae)
In the past, the systematics of species in the genus Lecanodiasuis has been chaotic. This study is an attempt to clarify the classification of this group. Forty-eight species are included in this paper; six of these are new species and described for the first time. Adult females of thirty-two …
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Mechanisms by Which Grass Reduces Potato Leafhopper, Empoasca Fabae (Harris) (Homoptera: Cicadellidae), Abundance in Alfalfa
The apparent repellency of grass was investigated in order to determine the means by which potato leafhoppers perceive the presence of grass, to determine the behavioral changes caused by grass which lower abundance in alfalfa, and to test the resource concentration hypothesis for the potato …
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Biosystematics of the genus Chionaspis (Homoptera, Coccoidea, Diaspididae) of North America, with emphasis on polymorphism
The scurfy scales in the genus Chionaspis comprise a unique taxon among the armored scale insect genera in North America. The taxonomic reviews of the species belonging to the genus by Cooley (1899) and Ferris (1937, 1942) are far outdated. The present research is a comprehensive review of all the …
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Influence of feeding-location on nutritional quality for cochineal insects (Homoptera : Dactylopiidae) on Opuntia ficus-indica (Cactaceae)
The cochineal insect Dactylopius opuntiae has been an extremely successful biocontrol agent of the cactus weed Opuntia ficus-indica. Its resounding success has allowed us to take a closer look at how the relationships between biocontrol agents and their host plants are maintained. The prickly pear, …
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Biosystematics of the family dactylopiidae (Homoptera: Coccinea) with emphasis on the life cycle of dactylopius coccus costa
… keys are presented: one to the suborders of Homoptera, the other to the superfamilies and families of Coccinea, and another one for the determination of the species of Dactylopius. The phylogenetic relationships of the family Dactylopiidae with respect to all the Coccinea families is …
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Evolution of the Higher Categories of Cercopidae, With a Revision of the North American Species of Aphrophora (Homoptera)
Made available in DSpace on 2014-12-05T21:33:55Z (GMT). No. of bitstreams: 1 0018175.pdf: 4538276 bytes, checksum: a1a0e447f09f122a5caa21c89f78eba3 (MD5) Previous issue date: 1956
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A morphological and systematic study of the first and second instars of the Kermesidae in the Nearctic region (Homoptera: Coccoidea)
The Cocco idea or scale insects are among the most important pests of sylvicultural, ornamental, agricultural and greenhouse plantings throughout the world. There are 21 families comprising 6,000 species. Direct injury occurs from the withdrawal of sap while feeding and from the production of …
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