This work provides a phylogenetic classification of the insect order PSOCOPTERA. Some of the problems involved, mainly arising from lack of adequate published data, are pointed out and work carried out to overcome them is indicated in a short introductory chapter (Chapter I). This consisted of accummulating data on the genera from published texts and illustrations, adding data from the study of fresh material or material held in collections and compiling generic definitions in adequate detail where possible. Chapter II gives a general description of the Psocoptera together with brief background information on their biology. As considerable changes are proposed in the classification of the order (in Chapter VII) the classification in use at present is set out for comparison to generic level and a brief history of systematic work on the order is given {Chapter III). The data necessary for a discussion of the phylogeny is presented in the series of definitions of genera and suprageneric groups in Chapter IV. Data on fossil forms is given in Chapter V. The principles of phylogenetic study are briefly discussed in Chapter VI and the important question of the relatively primitive or advanced condition of characters in the order is discussed. The monophyly of the order and the relationships between genera are established using Hennig's system and the results are set out in discussion and dendrogram. On the basis of the relationships so established a classification of the order is proposed which is considered to be practical and to reflect evolutionary history of the group. (Chapter. VII.) Comments on the distribution of the Psocoptera are made in Chapter VIII and it is suggested that, despite inadequacy of data, a consideration of the distributions supports the proposed classification in general terms. A general discussion follows and references and figures are included. An appendix provides a practical up-to-date key to the genera of the order.

Polyacrylamide gel electrophoresis was used to study B-esterases (EC 3.1.1.1) and C-esterases (EC 3.1.1.6) in five species of Collembola--; Folsomia candida, Proisotoma vesiculata, H,ypogastrura denticulata, and two undescribed species of Isotoma,. Ef values were computed for zymograms of 105 individuals and compared both within and among species. Certain bands-three to six in number--predominated on the zymograms of each species. The predominating bands differed among the five species resulting in a unique zymogram for each.It was also found that zymograms of normal and ecomorphic forms of Proisotoma vesiculata were dissimilar. Zymograms of specimens of Folsomia candida with access to food and those without food for 48 and 72 hours were similar. Zymograms from mascerated specimens frozen in buffer were not satisfactory.

i, 224 leaves : ill. ; 31 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.1975) from the Dept. of Zoology, University of Adelaide

Orientador: Francisco de Assis Ganeo de Mello / Banca: Francisca Carolina do Val / Banca: Sônia A. Casari / Resumo: O presente trabalho teve por objetivo estudar, do ponto de vista taxonômico, as espécies de Lutosa Walker, 1869 (Orthoptera, Ensifera, Stenopelmatoidea, Anostostomatidae) que ocorrem nas florestas do leste do Estado de São Paulo, Brasil, abrangendo análises da morfologia corporal externa, do complexo fálico e espermateca. Além da re-descrição do gênero e de três espécies já conhecidas, treze novas foram descritas e uma chave dicotômica de identificação é proposta para todas as espécies examinadas. Com base na estrutura de certos elementos que compõem o complexo fálico, dois grupos de espécies foram reconhecidos e definidos. Ainda no que concerne à morfologia da genitália masculina, uma proposta de terminologia para as diferentes áreas do apódema epifálico é apresentada. Dados preliminares sobre hábitos, ecologia e comportamento de espécies de Lutosa são fornecidos. / Abstract: The aim of the present work was to study, from a taxonomic perspective, the species of Lutosa Walker, 1869 (Orthoptera, Ensifera, Stenopelmatoidea, Anostostomatidae) from the eastern forests from the State of São Paulo, Brazil, including analyses of external body morphology, phallic complex and spermatheca. Besides re-describing the genus and three of its valid species, thirteen new ones were described, and a dichotomic identification key for all examined species is presented. Based on the structure of certain elements that comprise the phallic complex, two species groups were recognized and defined. Still regarding male genital morphology, a terminological proposal for the different areas of the epiphallic apodeme is presented. Preliminary data on habits, ecology, and behavior of Lutosa species are given. / Mestre

Note: page 74 is missing from archival and circulating copies / The present state af knowledge of the order Thysanaptera in Canada is reviewed. The aoder has been sorely neglected since Provenchar submitted a list af 35 eastern Canadian species in 1890. In contrast to the latest previaus estimate of 102 species (Heming, 1979), the number of species found in this study is 174 (143 described and 31 undescribed species). One new genus and five new species are reported as well as the European species Odontothrips biuncus which has been found for the first time in North America. Descriptions, illustrations and a dichatamaus key to the Canadian genera of the Thysanaptera ara given for the first time. Also included are lists of the species. hitherto found in Canada along with their localities•• and habitats•• In addition, an alternative computer-compatible key is presented for the suborder Tubullfera. The distribution and study af the order in Canada are discussed and notes on collection, classification, biology and economic importance are given. / Ce travail revise l’etat de nos cannais.ance. sur l’ordre de. Thysanopteres au Canada. Ce groupe a fait l’objet de peu d’etudes depuis la publication de Provencher (1890), qui enumerait 35 especes pour l’est du Canada. Dans la presente etude, nous rapportons . 174 especes (143 especes decrites, 31 especes non decrit••) alors qu’Heming (1979) n’en citait que 102 especes. pour ce pays. On y cree un nouveau genre et 5 nouvelles especes, en plus de recolter pour la premiere fois l’espece europeanne, Odonthrips biuncus en Amerique du Nord. L’auteur decrit et illustre pour la premiere fois. les. genres de Thvsanoptere. representes dans la fauna canadienne. De plus, on y trouve une liste des especes presentes au Canada, accompagnee de notes sur leur repartition geographique et leur habitat. On y inclut un tableau dichotomique conventionnel ainsi qu’un tableau de determination adape a l’ordinateur. pour Ie sous-ordre des Tubuliferes. Ce travail fournit egalemant, pour les Thysanopteres du Canada, une discussion sur leur repartition Geographique et des renseignements sur leur recolte et classification, leur biologie et importance economique.

Note: page 74 is missing from archival and circulating copies

Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-06-23T19:10:20Z No. of bitstreams: 2 Dissertação - André Reis de Geus - 2016.pdf: 8269330 bytes, checksum: 1345e49235c545021c88a7baf696f5c0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Cláudia Bueno (claudiamoura18@gmail.com) on 2017-07-07T20:25:28Z (GMT) No. of bitstreams: 2 Dissertação - André Reis de Geus - 2016.pdf: 8269330 bytes, checksum: 1345e49235c545021c88a7baf696f5c0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-07-07T20:25:28Z (GMT). No. of bitstreams: 2 Dissertação - André Reis de Geus - 2016.pdf: 8269330 bytes, checksum: 1345e49235c545021c88a7baf696f5c0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-03-10 / Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG / Insects cause significant losses of stored grains in both quantity and quality. In the scenary, it is of paramount importance an early identification of insects in grains to take control measures. Instead of sampling and visual/laboratory analysis of grains, we propose to carry out the insects identification task automatically, using computational methods to perform endoscopic video analysis. The videos are recorded inside of grains warehouses by an endoscopic camera. As the classification process of moving objects in video rely heavily on precise segmentation of moving objets, we propose a new method of background subtraction and compared their results with the main methods of the literature according to a recent review. The main innovation of the background subtractionmethod rely on the binarization process that uses two thresholds: a global and a local threshold. The binarized results are combined by adding details of the object obtained by the local threshold in the result of the global threshold. Experimental results performed through visual analysis of the segmentation results and using a SVM classifier, suggest that the proposed segmentation method produces more accurate results than the state-of-art background subtraction methods. / Insetos causam perdas quantitativas e qualitativas significantesemgrãos armazenados. Neste cenário, é de vital importância uma identificação rápida de insetos em grãos para que sejam tomadas medidas de controle. Ao invés de coletar amostras de grãos para análise visual/laboratorial, é proposta a realização desta tarefa de identificação de formaautomática, usando métodos computacionais para a análise de vídeos endoscópicos. Os vídeos são gravados dentro de armazéns de grãos usando câmera endoscópica. Como o processo de classificação de objetos em movimento em vídeo depende fundamentalmente de uma segmentação de objeto precisa, é proposto um novo método de segmentação por subtração de plano de fundo e comparado seus resultados com os principais métodos da literatura de acordo com um estudo de revisão recente. A principal inovação neste método de subtração de plano de fundo está no processo de binarização que usa dois thresholds: um global e um local. Os resultados binarizados são combinados pela adição de detalhes do objeto obtido pelo threshold local no resultado do threshold global. Resultados experimentais, realizados através de análise visual dos resultados de segmentação e usandoumclassificadorSVMindicamque o método de segmentação proposto produz melhores resultados que métodos do estado da arte atual da literatura de subtração de plano de fundo.

As a result of research carried out within the last decade to assess the diversity of macroinvertebrates of the Salt River in the Western Cape Province, South Africa, surveys of macroinvertebrates of 20 sites on 11 selected rivers from the same mountain range source were undertaken. This was done to make a preliminary assessment of the conservation status of the rivers of this region. Aquatic insects from the orders Ephemeroptera, Odonata, Plecoptera, Megaloptera, Trichoptera and the dipteran family Simuliidae were collected using techniques to maximize the number of taxa found. The insects collected were identified to species level where possible. Water physicochemical parameters were recorded at all sites for each sampling trip to characterize these rivers and to establish a set of baseline data for future comparisons. These parameters included measurements made on site and analysis of the concentrations of all the major ions in water samples in the laboratory. Multivariate analyses including Principle Components Analysis and Canonical Correspondence Analysis were used to reveal patterns within the water physicochemistry and species distributional data. Results include the identification of 123 species from 70 genera and 30 families. A total of 31 species were found to be undescribed, of which 17 were not previously collected and are thus completely new to science. In addition, four of these species could not be placed into any known genus. The analysis of water physicochemistry showed a clear distinction between rivers of Table Mountain sandstone and Bokkeveld shale origin. Downstream effects of anthropogenic influences were discernable too. Distinct macroinvertebrate assemblages were found based upon stream order and water chemistry composition. pH proved to be the most important driver of invertebrate assemblage composition. The high levels of endemism of the macroinvertebrates found within the upper reaches of these rivers and their degree of ecological specialization make these systems a priority for the conservation of aquatic biodiversity on a national and global scale.