Aberrant Ontogeneses and Life Cycles in Paraneoptera
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Aphis Fabae Scop.) to Field Beans ( Vicia Faba L.
ANALYSIS OF THE DAMAGE CAUSED BY THE BLACK BEAN APHID ( APHIS FABAE SCOP.) TO FIELD BEANS ( VICIA FABA L.) BY JESUS ANTONIO SALAZAR, ING. AGR. ( VENEZUELA ) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN THE UNIVERSITY OF LONDON OCTOBER 1976 IMPERIAL COLLEGE FIELD STATION, SILWOOD PARK, SUNNINGHILL, ASCOT, BERKSHIRE. 2 ABSTRACT The concept of the economic threshold and its importance in pest management programmes is analysed in Chapter I. The significance of plant responses or compensation in the insect-injury-yield relationship is also discussed. The amount of damage in terms of yield loss that results from aphid attack, is analysed by comparing the different components of yield in infested and uninfested plants. In the former, plants were infested at different stages of plant development. The results showed that seed weights, pod numbers and seed numbers in plants infested before the flowering period were significantly less than in plants infested during or after the period of flower setting. The growth pattern and growth analysis in infested and uninfested plants have shown that the rate of leaf production and dry matter production were also more affected when the infestations occurred at early stages of plant development. When field beans were infested during the flowering period and afterwards, the aphid feeding did not affect the rate of leaf and dry matter production. There is some evidence that the rate of leaf area production may increase following moderate aphid attack during this period. The relationship between timing of aphid migration from the wintering host and the stage of plant development are shown to be of considerable significance in determining the economic threshold for A. -
(Pentatomidae) DISSERTATION Presented
Genome Evolution During Development of Symbiosis in Extracellular Mutualists of Stink Bugs (Pentatomidae) DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Alejandro Otero-Bravo Graduate Program in Evolution, Ecology and Organismal Biology The Ohio State University 2020 Dissertation Committee: Zakee L. Sabree, Advisor Rachelle Adams Norman Johnson Laura Kubatko Copyrighted by Alejandro Otero-Bravo 2020 Abstract Nutritional symbioses between bacteria and insects are prevalent, diverse, and have allowed insects to expand their feeding strategies and niches. It has been well characterized that long-term insect-bacterial mutualisms cause genome reduction resulting in extremely small genomes, some even approaching sizes more similar to organelles than bacteria. While several symbioses have been described, each provides a limited view of a single or few stages of the process of reduction and the minority of these are of extracellular symbionts. This dissertation aims to address the knowledge gap in the genome evolution of extracellular insect symbionts using the stink bug – Pantoea system. Specifically, how do these symbionts genomes evolve and differ from their free- living or intracellular counterparts? In the introduction, we review the literature on extracellular symbionts of stink bugs and explore the characteristics of this system that make it valuable for the study of symbiosis. We find that stink bug symbiont genomes are very valuable for the study of genome evolution due not only to their biphasic lifestyle, but also to the degree of coevolution with their hosts. i In Chapter 1 we investigate one of the traits associated with genome reduction, high mutation rates, for Candidatus ‘Pantoea carbekii’ the symbiont of the economically important pest insect Halyomorpha halys, the brown marmorated stink bug, and evaluate its potential for elucidating host distribution, an analysis which has been successfully used with other intracellular symbionts. -
Zootaxa,Phylogeny and Higher Classification of the Scale Insects
Zootaxa 1668: 413–425 (2007) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2007 · Magnolia Press ISSN 1175-5334 (online edition) Phylogeny and higher classification of the scale insects (Hemiptera: Sternorrhyncha: Coccoidea)* P.J. GULLAN1 AND L.G. COOK2 1Department of Entomology, University of California, One Shields Avenue, Davis, CA 95616, U.S.A. E-mail: [email protected] 2School of Integrative Biology, The University of Queensland, Brisbane, Queensland 4072, Australia. Email: [email protected] *In: Zhang, Z.-Q. & Shear, W.A. (Eds) (2007) Linnaeus Tercentenary: Progress in Invertebrate Taxonomy. Zootaxa, 1668, 1–766. Table of contents Abstract . .413 Introduction . .413 A review of archaeococcoid classification and relationships . 416 A review of neococcoid classification and relationships . .420 Future directions . .421 Acknowledgements . .422 References . .422 Abstract The superfamily Coccoidea contains nearly 8000 species of plant-feeding hemipterans comprising up to 32 families divided traditionally into two informal groups, the archaeococcoids and the neococcoids. The neococcoids form a mono- phyletic group supported by both morphological and genetic data. In contrast, the monophyly of the archaeococcoids is uncertain and the higher level ranks within it have been controversial, particularly since the late Professor Jan Koteja introduced his multi-family classification for scale insects in 1974. Recent phylogenetic studies using molecular and morphological data support the recognition of up to 15 extant families of archaeococcoids, including 11 families for the former Margarodidae sensu lato, vindicating Koteja’s views. Archaeococcoids are represented better in the fossil record than neococcoids, and have an adequate record through the Tertiary and Cretaceous but almost no putative coccoid fos- sils are known from earlier. -
Hopea Odorata Roxb. APFORGEN Priority Species Information Sheet
APFORGEN Priority Species Information Sheet Hopea odorata Roxb. Family: Dipterocarpaceae Vernacular names: Malaysia: merawan siput jantan (general), chengal pasir, chengal mas, chengal kampong, chengal pulau (Peninsular Malaysia); Vietnam: sao den; Cambodia: kok, mosau, thmar; Laos: kh’en; Thailand: takhian-thong, takhian-yai Distribution and habitat: Distributed from Andaman Islands, Myanmar, Thailand and Indo-China to the northern part of Peninsular Malaysia. It is found mostly in lowland tropical forests on deep, rich soils up to 300 m altitude and rarely far away from streams. The Indian Andaman population, however, occurs in moist evergreen forest at higher altitudes away from streams. Best growth is obtained in areas with annual rainfall more than 1200 mm and mean annual temperature of 25°–27°C. It can grow in 1: Flowering branch; 2: flower; 3: fruit with calyx lobes (wings); 4: fruit with calyx removed. [From: Plant Resources of South-East a wide range of habitats and is easy to handle as a plantation Asia No. 5(1)] species. Reproductive biology: As with any other dipterocarp species, mass flowering and fruiting of H. odorata is irregular and may occur once in 2 to 3 years. Trees reach reproductive maturity at the age of 8–10 years. Fruits are formed 1.5 months after flowering. The fruits mature in 2 to 3 months. Some H. odorata fruits are polyembryonic; one fruit may produce up to seven plantlets. Apomixis in H. odorata has been inferred from embryological studies. Isozyme and DNA profiles of H. odorata seedlings revealed genetic variation between multiple seedlings from single seeds indicating sexual and asexual reproduction in this species. -
Insecticides - Development of Safer and More Effective Technologies
INSECTICIDES - DEVELOPMENT OF SAFER AND MORE EFFECTIVE TECHNOLOGIES Edited by Stanislav Trdan Insecticides - Development of Safer and More Effective Technologies http://dx.doi.org/10.5772/3356 Edited by Stanislav Trdan Contributors Mahdi Banaee, Philip Koehler, Alexa Alexander, Francisco Sánchez-Bayo, Juliana Cristina Dos Santos, Ronald Zanetti Bonetti Filho, Denilson Ferrreira De Oliveira, Giovanna Gajo, Dejane Santos Alves, Stuart Reitz, Yulin Gao, Zhongren Lei, Christopher Fettig, Donald Grosman, A. Steven Munson, Nabil El-Wakeil, Nawal Gaafar, Ahmed Ahmed Sallam, Christa Volkmar, Elias Papadopoulos, Mauro Prato, Giuliana Giribaldi, Manuela Polimeni, Žiga Laznik, Stanislav Trdan, Shehata E. M. Shalaby, Gehan Abdou, Andreia Almeida, Francisco Amaral Villela, João Carlos Nunes, Geri Eduardo Meneghello, Adilson Jauer, Moacir Rossi Forim, Bruno Perlatti, Patrícia Luísa Bergo, Maria Fátima Da Silva, João Fernandes, Christian Nansen, Solange Maria De França, Mariana Breda, César Badji, José Vargas Oliveira, Gleberson Guillen Piccinin, Alan Augusto Donel, Alessandro Braccini, Gabriel Loli Bazo, Keila Regina Hossa Regina Hossa, Fernanda Brunetta Godinho Brunetta Godinho, Lilian Gomes De Moraes Dan, Maria Lourdes Aldana Madrid, Maria Isabel Silveira, Fabiola-Gabriela Zuno-Floriano, Guillermo Rodríguez-Olibarría, Patrick Kareru, Zachaeus Kipkorir Rotich, Esther Wamaitha Maina, Taema Imo Published by InTech Janeza Trdine 9, 51000 Rijeka, Croatia Copyright © 2013 InTech All chapters are Open Access distributed under the Creative Commons Attribution 3.0 license, which allows users to download, copy and build upon published articles even for commercial purposes, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. After this work has been published by InTech, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work. -
The Mechanism by Which Aphids Adhere to Smooth Surfaces
J. exp. Biol. 152, 243-253 (1990) 243 Printed in Great Britain © The Company of Biologists Limited 1990 THE MECHANISM BY WHICH APHIDS ADHERE TO SMOOTH SURFACES BY A. F. G. DIXON, P. C. CROGHAN AND R. P. GOWING School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ Accepted 30 April 1990 Summary 1. The adhesive force acting between the adhesive organs and substratum for a number of aphid species has been studied. In the case of Aphis fabae, the force per foot is about 10/iN. This is much the same on both glass (amphiphilic) and silanized glass (hydrophobic) surfaces. The adhesive force is about 20 times greater than the gravitational force tending to detach each foot of an inverted aphid. 2. The mechanism of adhesion was considered. Direct van der Waals forces and viscous force were shown to be trivial and electrostatic force and muscular force were shown to be improbable. An adhesive force resulting from surface tension at an air-fluid interface was shown to be adequate and likely. 3. Evidence was collected that the working fluid of the adhesive organ has the properties of a dilute aqueous solution of a surfactant. There is a considerable reserve of fluid, presumably in the cuticle of the adhesive organ. Introduction The mechanism by which certain insects can walk on smooth vertical and even inverted surfaces has long interested entomologists and recently there have been several studies on this subject (Stork, 1980; Wigglesworth, 1987; Lees and Hardie, 1988). The elegant study of Lees and Hardie (1988) on the feet of the vetch aphid Megoura viciae Buckt. -
A New Pupillarial Scale Insect (Hemiptera: Coccoidea: Eriococcidae) from Angophora in Coastal New South Wales, Australia
Zootaxa 4117 (1): 085–100 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2016 Magnolia Press ISSN 1175-5334 (online edition) http://doi.org/10.11646/zootaxa.4117.1.4 http://zoobank.org/urn:lsid:zoobank.org:pub:5C240849-6842-44B0-AD9F-DFB25038B675 A new pupillarial scale insect (Hemiptera: Coccoidea: Eriococcidae) from Angophora in coastal New South Wales, Australia PENNY J. GULLAN1,3 & DOUGLAS J. WILLIAMS2 1Division of Evolution, Ecology & Genetics, Research School of Biology, The Australian National University, Acton, Canberra, A.C.T. 2601, Australia 2The Natural History Museum, Department of Life Sciences (Entomology), London SW7 5BD, UK 3Corresponding author. E-mail: [email protected] Abstract A new scale insect, Aolacoccus angophorae gen. nov. and sp. nov. (Eriococcidae), is described from the bark of Ango- phora (Myrtaceae) growing in the Sydney area of New South Wales, Australia. These insects do not produce honeydew, are not ant-tended and probably feed on cortical parenchyma. The adult female is pupillarial as it is retained within the cuticle of the penultimate (second) instar. The crawlers (mobile first-instar nymphs) emerge via a flap or operculum at the posterior end of the abdomen of the second-instar exuviae. The adult and second-instar females, second-instar male and first-instar nymph, as well as salient features of the apterous adult male, are described and illustrated. The adult female of this new taxon has some morphological similarities to females of the non-pupillarial palm scale Phoenicococcus marlatti Cockerell (Phoenicococcidae), the pupillarial palm scales (Halimococcidae) and some pupillarial genera of armoured scales (Diaspididae), but is related to other Australian Myrtaceae-feeding eriococcids. -
Overview of Upland Rice Research Proceedings of the 1982 Bouaké, Ivory Coast Upland Rice Workshop
AN OVERVIEW OF UPLAND RICE RESEARCH PROCEEDINGS OF THE 1982 BOUAKÉ, IVORY COAST UPLAND RICE WORKSHOP 1984 INTERNATIONAL RICE RESEARCH INSTITUTE LOS BAÑOS, LAGUNA, PHILIPPINES P. O. BOX 933, MANILA, PHILIPPINES The International Rice Research Institute (IRRI) was established in 1960 by the Ford and Rockefeller Foundations with the help and approval of the Government of the Philippines. Today IRRl is one of 13 nonprofit international research and training centers supported by the Consultative Group for International Agricultural Research (CGIAR). The CGIAR is sponsored by the Food and Agriculture Organization (FAO) of the United Nations, the International Bank for Reconstruction and Development (World Bank), and the United Nations Development Programme (UNDP). The CGIAR consists of 50 donor countries, international and regional organizations, and private foundations. IRRl receives support, through the CGIAR, from a number of donors including: the Asian Development Bank the European Economic Community the Ford Foundation the International Development Research Centre the International Fund for Agricultural Development the OPEC Special Fund the Rockefeller Foundation the United Nations Development Programme the World Bank and the international aid agencies of the following governments: Australia Belgium Brazil Canada China Denmark Fed. Rep. Germany India Italy Japan Mexico Netherlands New Zealand Philippines Saudi Arabia Spain Sweden Switzerland United Kingdom United States The responsibility for this publication rests with the International Rice Research Institute. ISBN 971-104-121-9 CONTENTS FOREWORD v BASE PAPERS Upland rice in Africa IITA 3 WARDA 21 Upland rice in Asia IRRI 45 Upland rice in India 69 D. M. Maurya and C. P. Vaish Upland rice in Latin America CIAT 93 EMBRAPA 121 ENVIRONMENTAL CHARACTERIZATION AND CLASSIFICATION Rice production calendar for the Ivory Coast 137 J. -
Records of the Hawaii Biological Survey for 1996
Records of the Hawaii Biological Survey for 1996. Bishop Museum Occasional Papers 49, 71 p. (1997) RECORDS OF THE HAWAII BIOLOGICAL SURVEY FOR 1996 Part 2: Notes1 This is the second of 2 parts to the Records of the Hawaii Biological Survey for 1996 and contains the notes on Hawaiian species of protists, fungi, plants, and animals includ- ing new state and island records, range extensions, and other information. Larger, more comprehensive treatments and papers describing new taxa are treated in the first part of this Records [Bishop Museum Occasional Papers 48]. Foraminifera of Hawaii: Literature Survey THOMAS A. BURCH & BEATRICE L. BURCH (Research Associates in Zoology, Hawaii Biological Survey, Bishop Museum, 1525 Bernice Street, Honolulu, HI 96817, USA) The result of a compilation of a checklist of Foraminifera of the Hawaiian Islands is a list of 755 taxa reported in the literature below. The entire list is planned to be published as a Bishop Museum Technical Report. This list also includes other names that have been applied to Hawaiian foraminiferans. Loeblich & Tappan (1994) and Jones (1994) dis- agree about which names should be used; therefore, each is cross referenced to the other. Literature Cited Bagg, R.M., Jr. 1980. Foraminifera collected near the Hawaiian Islands by the Steamer Albatross in 1902. Proc. U.S. Natl. Mus. 34(1603): 113–73. Barker, R.W. 1960. Taxonomic notes on the species figured by H. B. Brady in his report on the Foraminifera dredged by HMS Challenger during the years 1873–1876. Soc. Econ. Paleontol. Mineral. Spec. Publ. 9, 239 p. Belford, D.J. -
Digging Deeper Into the Ecology of Subterranean Ants: Diversity and Niche Partitioning Across Two Continents
diversity Article Digging Deeper into the Ecology of Subterranean Ants: Diversity and Niche Partitioning across Two Continents Mickal Houadria * and Florian Menzel Institute of Organismic and Molecular Evolution, Johannes-Gutenberg-University Mainz, Hanns-Dieter-Hüsch-Weg 15, 55128 Mainz, Germany; [email protected] * Correspondence: [email protected] Abstract: Soil fauna is generally understudied compared to above-ground arthropods, and ants are no exception. Here, we compared a primary and a secondary forest each on two continents using four different sampling methods. Winkler sampling, pitfalls, and four types of above- and below-ground baits (dead, crushed insects; melezitose; living termites; living mealworms/grasshoppers) were applied on four plots (4 × 4 grid points) on each site. Although less diverse than Winkler samples and pitfalls, subterranean baits provided a remarkable ant community. Our baiting system provided a large dataset to systematically quantify strata and dietary specialisation in tropical rainforest ants. Compared to above-ground baits, 10–28% of the species at subterranean baits were overall more common (or unique to) below ground, indicating a fauna that was truly specialised to this stratum. Species turnover was particularly high in the primary forests, both concerning above-ground and subterranean baits and between grid points within a site. This suggests that secondary forests are more impoverished, especially concerning their subterranean fauna. Although subterranean ants rarely displayed specific preferences for a bait type, they were in general more specialised than above-ground ants; this was true for entire communities, but also for the same species if they foraged in both strata. Citation: Houadria, M.; Menzel, F. -
Predation of the Chinch Bug, Blissus Occiduus Barber (Hemiptera: Blissidae) by Geocoris Uliginosus (Say) (Hemiptera: Lygaeidae)
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Faculty Publications: Department of Entomology Entomology, Department of 2008 Predation of the Chinch Bug, Blissus occiduus Barber (Hemiptera: Blissidae) by Geocoris uliginosus (Say) (Hemiptera: Lygaeidae) J. D. Carstens University of Nebraska-Lincoln Frederick P. Baxendale University of Nebraska-Lincoln, [email protected] Tiffany Heng-Moss University of Nebraska-Lincoln, [email protected] Robert J. Wright University of Nebraska, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/entomologyfacpub Part of the Entomology Commons Carstens, J. D.; Baxendale, Frederick P.; Heng-Moss, Tiffany; and Wright, Robert J., "Predation of the Chinch Bug, Blissus occiduus Barber (Hemiptera: Blissidae) by Geocoris uliginosus (Say) (Hemiptera: Lygaeidae)" (2008). Faculty Publications: Department of Entomology. 157. https://digitalcommons.unl.edu/entomologyfacpub/157 This Article is brought to you for free and open access by the Entomology, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Faculty Publications: Department of Entomology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY 81(4), 2008, pp. 328–338 Predation of the Chinch Bug, Blissus occiduus Barber (Hemiptera: Blissidae) by Geocoris uliginosus (Say) (Hemiptera: Lygaeidae) J. D. CARSTENS,F.P.BAXENDALE,T.M.HENG-MOSS, AND R. J. WRIGHT Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE 68583 ABSTRACT: Big-eyed bugs have been well documented as predators on a diverse group of arthropod prey in turfgrasses; however, little is known about the big-eyed bug species associated with buffalograss, or their feeding habits relative to the western chinch bug, Blissus occiduus Barber. -
American Museum Novitates
AMERICAN MUSEUM NOVITATES Number 3823, 80 pp. January 16, 2015 Diverse new scale insects (Hemiptera: Coccoidea) in amber from the Cretaceous and Eocene with a phylogenetic framework for fossil Coccoidea ISABELLE M. VEA1, 2 AND DAVID A. GRIMALDI2 ABSTRACT Coccoids are abundant and diverse in most amber deposits around the world, but largely as macropterous males. Based on a study of male coccoids in Lebanese amber (Early Cretaceous), Burmese amber (Albian-Cenomanian), Cambay amber from western India (Early Eocene), and Baltic amber (mid-Eocene), 16 new species, 11 new genera, and three new families are added to the coccoid fossil record: Apticoccidae, n. fam., based on Apticoccus Koteja and Azar, and includ- ing two new species A. fortis, n. sp., and A. longitenuis, n. sp.; the monotypic family Hodgsonicoc- cidae, n. fam., including Hodgsonicoccus patefactus, n. gen., n. sp.; Kozariidae, n. fam., including Kozarius achronus, n. gen., n. sp., and K. perpetuus, n. sp.; the irst occurrence of a Coccidae in Burmese amber, Rosahendersonia prisca, n. gen., n. sp.; the irst fossil record of a Margarodidae sensu stricto, Heteromargarodes hukamsinghi, n. sp.; a peculiar Diaspididae in Indian amber, Nor- markicoccus cambayae, n. gen., n. sp.; a Pityococcidae from Baltic amber, Pityococcus monilifor- malis, n. sp., two Pseudococcidae in Lebanese and Burmese ambers, Williamsicoccus megalops, n. gen., n. sp., and Gilderius eukrinops, n. gen., n. sp.; an Early Cretaceous Weitschatidae, Pseudo- weitschatus audebertis, n. gen., n. sp.; four genera considered incertae sedis, Alacrena peculiaris, n. gen., n. sp., Magnilens glaesaria, n. gen., n. sp., and Pedicellicoccus marginatus, n. gen., n. sp., and Xiphos vani, n.