Download or read book A Taxonomic Revision of the Leafhopper Genus Flexamia and a New Related Genus Homoptera Cicadellidae written by David A. Young and published by . This book was released on 1958 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Taxonomic Revision of the Leafhopper Genus Glexamia and a New Related Genus written by David A. Young and published by . This book was released on 1958 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Available Publications of the United States Department of Agriculture written by United States. Department of Agriculture and published by . This book was released on 1963 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Available Publications of the United States Department of Agriculture written by United States. Dept. of Agriculture and published by . This book was released on 1960 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by and published by . This book was released on 1958 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to USDA Technical Bulletins Numbers 1 1802 written by Ellen Kay Miller and published by . This book was released on 1993 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1959 with total page 1698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Revision of the Leafhopper Genus Xyphon hemiptera Cicadellidae written by Therese A. Catanach and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The leafhopper genus Xyphon, included in the sharpshooters, is a widely distributed group of insects whose species are vectors for various plant diseases. Xyphon has historically contained up to 9 species. These species have been poorly delimited in the past and their identification has been difficult using published keys. The genus is revised here based on a new species level phylogenetic assessment that incorporates both morphological and molecular data. The genus Xyphon was erected to contain leafhoppers that possessed a reticulated forewing apex but lacked both a median sulcus on the crown and a carinate anterolateral crown-face margin both of which are present in the closely related genus Draeculacephala. Young (1977) revised most of the genera included in Xyphon's containing subfamily. He did not attempt a revision of Carneocephala (the genus that formerly contained most Xyphon species), but noted the need for a revision of its species. This revision of the genus Xyphon is based on the examination of approximately 8,000 specimens and includes a phylogenetic analysis of the genus that includes data from one gene (NDI) and 47 morphological characters. A generalized model of each preliminary taxonomic unit was used to test the monophyly of each species. These tests resulted in the synonomization of 4 former species: Xyphon gillettei to include X. balli; and X. reticulatum to include X. diductum, X. dyeri, and X. sagittiferum. Parsimony and Bayesian techniques were used to infer relationships among species. These analyses resulted in almost identical tree topologies. In all analyses Xyphon was monophyletic and Draeculacephala was its sister genus although clade support for the genus was generally low. The analyses found that X. flaviceps and X. fulgidum form a basal clade within Xyphon, above which X. gillettei and X. n. sp. 1 (new species 1) form a clade that is sister to a third clade containing X. triguttatum, X. nudum, and X. reticulatum.

Download or read book Checklist of Major United States Government Series written by and published by . This book was released on 1972-10 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1969 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revision of the Neotropical Treehopper Genus Metcalfiella Homoptera Membracidae written by Stuart H. McKamey and published by . This book was released on 1991 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Leafhoppers Cicadellidae written by P. W. Oman and published by Oxford University Press, USA. This book was released on 1990 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Leafhoppers and Planthoppers written by L. R. Nault and published by Wiley-Interscience. This book was released on 1985-09-23 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive single source available on leafhoppers and planthoppers, written to be accessible also to investigators new to these insects. Covers their taxonomy, morphology, behavior, population dynamics, interactions with microbes including transmission of plant pathogens, and key aspects of their biological control such as host-plant resistance and parasites. The leafhopper and planthopper faunas associated with three important crops are presented in concert with the evolution of host plant and insect.

Download or read book Taxonomic Study of the Cicadellinae Homoptera Cicadellidae written by David A. Young and published by . This book was released on 1968 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of the Library of the Academy of Natural Sciences of Philadelphia written by Academy of Natural Sciences of Philadelphia. Library and published by . This book was released on 1972 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Taxonomic Studies on the Leafhopper Genus Eupteryx Curtis Homoptera Cicadellidae in Britain written by Hassan Saeed Al-Asady and published by . This book was released on 1990 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulative Title Index to United States Public Documents 1789 1976 written by Daniel W. Lester and published by . This book was released on 1982 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: