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Articles 3721 - 3750 of 4226

Full-Text Articles in Entomology

Revision, Phylogeny And Biogeography Of The Genera Parabyrsopolis Ohaus And Viridimicus, New Genus (Coleoptera: Scarabaeidae: Rutelinae), Mary Liz Jameson Feb 1990

Revision, Phylogeny And Biogeography Of The Genera Parabyrsopolis Ohaus And Viridimicus, New Genus (Coleoptera: Scarabaeidae: Rutelinae), Mary Liz Jameson

University of Nebraska State Museum: Entomology Papers

The North American genus Parabyrsopolis is redefined, and a sister genus, Viridimicus, is established to accommodate those species from southern Mexico to Guatemala previously placed in Cotalpa or Parabyrsopolis. Parabyrsopolis is now monotypic, and four new species (of six) in the genus Viridimicus are described from Mexico: V. cyanochlorus, V. impunctatus, V. ratcliffei,and V. unitus. A key to the species of Viridirnicus, as well as keys to the tribes of Rutelinae, subtribes of Rutelini, and genera of Areodina are presented. Phylogenetic hypotheses (based on cladistic methodology) and biogeographic hypotheses (based on vicariance and …


Nebline, February 1990 Feb 1990

Nebline, February 1990

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Ag Update: Agricultural News & Events

Home Extension News

On-the-Grow: Horticulture News & Recommendations

The Cloverline: 4-H News and Events

Extension Calendar

and other extension news


Response To Selection For Virulence Of Nephotettix Virescens (Homoptera: Cicadellidae) On Resistant Rice Cultivars, E. A. Heinrichs, H. R. Rapusas Feb 1990

Response To Selection For Virulence Of Nephotettix Virescens (Homoptera: Cicadellidae) On Resistant Rice Cultivars, E. A. Heinrichs, H. R. Rapusas

Department of Entomology: Faculty Publications

Rate of response to selection for Nephotettix virescens (Distant) virulence was studied for 20 generations on five rice cultivars with different levels of resistance. Rate of response to selection on all cultivars varied depending on the measurement criteria. Survival, growth, progeny production, and weight increased, and developmental period decreased, with selection time. Based on survival, the N. virescens population became highly virulent within one to four generations, whereas high virulence as measured by progeny production generally required more generations of selection. Virulence as measured by the ability to vector tungro virus also increased with selection time.


Damage To North Carolina And Florida Highways By Red Imported Fire Ants, W. A. Banks, C. T. Adams, C. S. Lofgren Jan 1990

Damage To North Carolina And Florida Highways By Red Imported Fire Ants, W. A. Banks, C. T. Adams, C. S. Lofgren

Entomology Papers from Other Sources

The increasing importance of the red and black imported fire ants, Solenopsis invicta Buren and S. richteri Forel as economic pests is documented in reviews (Lofgren 1986, Adams 1986) and bibliographic lists (Banks et al. 1978, Wojcik & Lofgren 1982, and Wojcik 1986). This report of damage by red imported fire ants (RIFA) to highways in North Carolina and Florida further emphasizes their pestiferous nature.


Imported Fire Ant Infestation Of Soybean Fields In The Southern United States, W. A. Banks, C. T. Adams, C. S. Lofgren, D. P. Wojcik Jan 1990

Imported Fire Ant Infestation Of Soybean Fields In The Southern United States, W. A. Banks, C. T. Adams, C. S. Lofgren, D. P. Wojcik

Entomology Papers from Other Sources

Moderate to heavy infestations of the imported fire ants (IFA), Solenopsis invicta Buren and S. richteri Forel, have reduced soybean production in the southern United States. In early surveys of crop damage, Wilson & Eads (1949) attributed a loss of about three percent of the soybean crop in three south Alabama counties to the ants. Adams et al. (1976, 1977) reported that 16.8 to 49.1 kg/ha of soybeans in Georgia and North Carolina were not harvested because of physical interference of S. invicta mounds with combine operation. Subsequent studies in Florida and Mississippi showed that IFA feeding on the germinating …


Steinernematid Nematode Drenches For Control Of Fire Ants In Florida, Donald P. Jouvenaz, Clifford S. Lofgren, Richard W. Miller Jan 1990

Steinernematid Nematode Drenches For Control Of Fire Ants In Florida, Donald P. Jouvenaz, Clifford S. Lofgren, Richard W. Miller

Entomology Papers from Other Sources

Recent developments in low-cost, large-scale production of entomogenous nematodes of the genera Steinernema and Heterorhabditis (Bedding 1984) have facilitated large- scale field testing against various soil-infesting insect pests (Kaya 1985, Poinar 1986), with good potential for commercial control in some applications. Early research by Poole (1976) and Quattlebaum (1980) showed promise that entomogenous nematodes have potential for controlling fire ants, Solenopsis spp. Furthemore, these nematodes have the ability to invade adult insects, and thus potential to kill fire ant queens. Agents which only kill worker ants do not effectively eliminate colonies, although they may temporarily reduce their size.


Nebline, January 1990 Jan 1990

Nebline, January 1990

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Ag Update: Agricultural News & Events

Home Extension News

On-the-Grow: Horticulture News & Recommendations

The Cloverline: 4-H News and Events

Extension Calendar

and other extension news


Environmental Influences On Soil Macroarthropod Behavior In Agricultural Systems, Michael G. Villani, Robert J. Wright Jan 1990

Environmental Influences On Soil Macroarthropod Behavior In Agricultural Systems, Michael G. Villani, Robert J. Wright

Department of Entomology: Faculty Publications

Many basic and applied studies in insect ecology have focused on the proximate and ultimate responses of insect populations to their physical and chemical environment (2, 15, 21, 27, 32, 74, 82, 111, 112). From an economic perspective, macro- and microclimatic factors can influence the stress that insect populations inflict on plants and the efficacy of management tactics. For above-ground insects, the mechanisms of behavioral response to environmental factors are often observable, if not always apparent to the researcher. However, this is not typically the situation with soil insects. As a result, field studies of soil insects often quantify only …


Modification Of The Effect Of Bacillus Thuringiensis On Sunflower Moth (Lepidoptera: Pyralidae) By Dietary Phenols, Gary J. Brewer, Marc D. Anderson Jan 1990

Modification Of The Effect Of Bacillus Thuringiensis On Sunflower Moth (Lepidoptera: Pyralidae) By Dietary Phenols, Gary J. Brewer, Marc D. Anderson

Department of Entomology: Faculty Publications

The sunflower moth, Homoeosoma electellum (Hulst), a major pest of sunflower (Helianthus annuus L.), is susceptible to Bacillus thuringiensis Berliner, but field control has been inconsistent. Our study was done to determine whether phenolics in damaged sunflower tissue are in a conjugated or free form and whether they influence the toxicity of  B. thuringiensis to the sunflower moth.  Larvae fed diets containing B. thuringiensis had reduced survival and growth. The  LD50 of  B. thuringiensis was 52 international units of potency per gram of diet. Phenolic acids are general biocides. They were found in sunflower hybrids largely in the free …


Nebline, December 1989 Dec 1989

Nebline, December 1989

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

New Nebline Format
This issue of Nebline is the new newsletter from your Nebraska Cooperative Extension in Lancaster County. This newsletter replaces individual newsletters mailed to our agricultural, home extension, horticulture, and 4-H mailing lists. This issue of Nebline contains all of the news items we would have printed in the four individual newsletters. You are now receiving the benefits of all four newsletters in one publication. I'm sure you have noticed how fast things around us are changing. The extension service is not exempt from these changes. By stabilizing and/or reducing costs through labor, materials, and postage savings we …


Las Especies Argentinas Y Paraguayas Del Género Cerceris Latreille, Des Los Grupos "Pollens" Y "Rugulosa", Manfredo A. Fritz Dec 1989

Las Especies Argentinas Y Paraguayas Del Género Cerceris Latreille, Des Los Grupos "Pollens" Y "Rugulosa", Manfredo A. Fritz

Insecta Mundi

The "pollens" group of Cerceris is established for C. furcifera Schletterer (Paraguay), C. mariusi sp. n. (Paraguay), C. nigrosa sp. n. (Argentina), C. pollens Schletterer (Argentina and Paraguay), C. serrana sp. n. (Argentina), and C. willineri Fritz (Argentina), and the "rugulosa" group for C. rugulosa Schrottky (Argentina). A key to the species of the "pollens" group is included. The subspecies Cerceris r. dismorphia Schrottky is not regarded as valid.


Book Review: Soil Biology Guide, Ross H. Arnett Jr. Dec 1989

Book Review: Soil Biology Guide, Ross H. Arnett Jr.

Insecta Mundi

Under the skillful direction of Professor Dindal of Syracuse University, the work of 54 authors, 11 years in the making, is blended into one large, useful volume treating the systematics and biology of all organisms involved in the soil ecology of North America, north of Mexico. The separate authors treat their special groups following a similar format throughout, covering the biology, taxonomy, and ecology of each soil biotic group. The amount of data presented varies with the extent of knowledge of the group treated. The 43 chapters cover all taxa from soil bacteria through the insects. The insects are covered …


Apionidae From North And Central America. Part 1. Notes On The Classification Of The Apion Subgenus Trichapion Wagner With Description Of New Species From The United States Of America. (Coleoptera), David G. Kissinger Dec 1989

Apionidae From North And Central America. Part 1. Notes On The Classification Of The Apion Subgenus Trichapion Wagner With Description Of New Species From The United States Of America. (Coleoptera), David G. Kissinger

Insecta Mundi

Selected taxonomic characters of Apion species are redefined and explained including subcephalic ridge, sensory seta and macrochaeta. New species described are Apion (Trichapion) memnonmonum Kissinger, Black Mountains, North Carolina and Apion (Trichapion) nelsoni Kissinger from Davis Mts, Texas and Santa Rita Mts, Arizona. Supplemental descriptions or new records are given for the following species: Apion aequabile Fall, A. brunnicornis Fall, A. eccentricum Fall, A. minor Smith, A. punctulirostre Sharp and A. submetallicum Boheman.

A statistical test is used to evaluate the importance of a character in defining species groups in the Apion subgenus Trichapion Wagner. Eighteen characters met this criterion …


Sandhill Crane Press Catalogs Dec 1989

Sandhill Crane Press Catalogs

Insecta Mundi

This is a catalog of the books now published by or available directly from The Sandhill Crane Press, Inc. All of the Flora & Fauna Publications books are now stored in our warehouse. They may be ordered from us, some at a significant discount, by using the order form sent with this catalog. Note that some books are in press, but they may be ordered at a prepublication price.


My Association With William Steel Creighton, George C. Wheeler Dec 1989

My Association With William Steel Creighton, George C. Wheeler

Insecta Mundi

The recent (1986) publication of “My Association with William Morton Wheeler” evidently stirred my latent autobiographical urge. It is quite reasonable that I should next apply it to William Steel Creighton, for he certainly ranks next to W. M. Wheeler among American myrmecologists. It will be quite different, however, because my actual association with Creighton was very brief twice a dinner guest in New York City and two visits in La Feria, Texas. Correspondence, however, is quite different. I received 45 letters from W. M. Wheeler between 1919 and 1936; the last was dated four months before his death. They …


Book Review: Crop And Plant Protection, The Practical Foundations By Rudolph Heitefuss, V. K. Gupta Dec 1989

Book Review: Crop And Plant Protection, The Practical Foundations By Rudolph Heitefuss, V. K. Gupta

Insecta Mundi

This book integrates present knowledge in crop protection from the theoretical and practical points of view. Pest control Information derived from field like plant pathology, entomology, nematology and weed science is analyzed with reference to plant breeding and nutrition, agronomy and agricultural economics, and some general conclusions are drawn about prognoses, forecasting, and integrated pest control.


Records And Descriptions Of Costa Rican Cerambycidae, Part 1 : The Turrialba Valley, Frank T. Hovore Dec 1989

Records And Descriptions Of Costa Rican Cerambycidae, Part 1 : The Turrialba Valley, Frank T. Hovore

Insecta Mundi

Records from the Turrialba Valley region of Costa Rica are given for species of Cerambycidae heretofore unknown from Central America, or for which no previous specific information was recorded. The following species are recorded from Central America for the first time: Sphallambyx chabrillaci, Cycnoderus barbatus, Cylicasta nysa, Oncideres minuta, Dufauxia sp. indet., Onalcidion fibrosum, Nyssodrysola corticalis, Neoeutrypanus mutilatus, Anisopodus affinis, and Lithargyrus melzeri. Previously unrecorded locality or behavioral data are given for Xenochroma azurea, Chontalia cyanicolor, Omosarotes singularis, and Cephalodina crassiceps. New taxa described are: Ommata (Ecliptophanes) tommyi, sp. n., Eupogonius cryptus, sp. n., …


Lectotype Designations In The Buprestidae Collections Of The National Museum Of Natural History (Coleoptera), C. L. Bellamy, G. H. Nelson Dec 1989

Lectotype Designations In The Buprestidae Collections Of The National Museum Of Natural History (Coleoptera), C. L. Bellamy, G. H. Nelson

Insecta Mundi

Lectotypes are designated for the following species: A. aureocoerulans Obenberger, A. auroguttatus Schaeffer, A. cannulus Obenberger, A. carinellifer Obenberger, A. dolli Schaeffer, A. exclusus Obenberger, A. ferrisi Dury, A. huachucae Schaeffer, A. optatus Obenberger, A. pictithorax Obenberger, A. simillipictus Obenberger, A. subtropicus Schaeffer, Aphanisticus peninsulae Obenberger, Brachys fascifera Schwam, Buprestis adducta Casey, B. caliginosa Casey, B. disruptans Casey, B. fastidiosa Casey, B. flavopicta Casey, B. fulgens Casey, B. fusca Casey, B. graminea Casey, B. gravidula Casey, B. leporina Casey, B. maculipennis deficiens Casey, Chalcophora angulicollis montana Casey, C. laurentica Casey, Cinyra prosternalis Schaeffer, Conognatha fisheri Hoscheck, C. neutra Hoscheck, Cypriacis …


Revised Techniques For The Study Of Ant Larvae, George C. Wheeler, Jeanette Wheeler Dec 1989

Revised Techniques For The Study Of Ant Larvae, George C. Wheeler, Jeanette Wheeler

Insecta Mundi

In 1960 we published "Techniques for the study of ant larvae." We referred to it in 1976 and again in 1986. In the intervening years three authors have cited it and the quality of their drawings suggest they have benefited from our suggestions. The poor quality of most other recent drawings suggest they have not seen our article. Perhaps a 1960 reference is too old to be caught in latter-day "literature searches." Or, if the searcher did find it, he was unwilling to take the trouble to follow the recommended techniques. And troublesome they are, especially if one does not …


A Revision Of The North American Papillose Allocreadiidae (Digenea) With Independent Cladistic Analyses Of Larval And Adult Forms, Janine N. Caira Oct 1989

A Revision Of The North American Papillose Allocreadiidae (Digenea) With Independent Cladistic Analyses Of Larval And Adult Forms, Janine N. Caira

Bulletin of the University of Nebraska State Museum (1924–2023)

Adult specimens of all 19 North American species of papillose allocreadiids were examined. A description and figure is given for the adult of each species; details of the cirrus sacs are presented for most spesies for the first time. Descriptions were emended where necessary and judgments were made on synonymies. Scanning electron micrographs of the oral sucker of 10 species are presented as is a new key to the 19 species. A cladistic analysis was performed on the group based on adult characters. The analysis indicated that the group is monophyletic on the basis of the ventral papillae associated with …


A Revision Of The South American Hairstreak Butterfly Genera Tergissima And Femniterga (Lycaenidae: Theclinae), Kurt Johnson Sep 1989

A Revision Of The South American Hairstreak Butterfly Genera Tergissima And Femniterga (Lycaenidae: Theclinae), Kurt Johnson

Insecta Mundi

Tergissima Johnson and Femniterga Johnson, originally described from four sympatric south-central Andean species, are revised to include, respectively, four and nine South American species (of which six are previously undescribed). New combinations include Femniterga cissusa (Hewitson), F. cinniana (Hewitson) and F. plumans (Druce), all transferred from Thecla; new species include Tergissima montanensis and T. shargeli, and Femniterga itaituba, F. megana, F. splendida and F. strobilata. A lectotype is designated for Thecla cissusa. Femniterga and Tergissima are part of a largely undescribed eumaeine assemblage also including Calycopis Scudder and Calystryma Field.


New Country And State Records, And Other Notes For Mexican Buprestidae (Coleoptera), Richard L. Westcott, Thomas H. Atkinson, Henry A. Hespenheide, G. H. Nelson Sep 1989

New Country And State Records, And Other Notes For Mexican Buprestidae (Coleoptera), Richard L. Westcott, Thomas H. Atkinson, Henry A. Hespenheide, G. H. Nelson

Insecta Mundi

Treatment is provided for 224 species and subspecies in the genera Acherusia, Acmaeodera, Actenodes, Agaeocera, Agrilus, Anthaxia, Brachys, Buprestis, Chalcangium, Chrysobothris, Colobogaster, Cyphothorax, Dicerca, Dismorpha, Euchroma, Hiperantha, Hylaeogena, Leiopleura, Lius, Mixochlorus, Omochyseus, Pachyschelus, Polycesta, Psiloptera, Spectralia, Taphrocerus, Tetragonoschema, Thrincopyge, Trypantius and Tyndaris. Of these, 44 are recorded for the first time from Mexico and 175 represent new state records. Adult host and/or habitat information is provided, usually from the label data, for 93 of the taxa. Larval host records are indicated for Chrysobothris analis LeConte, C. capitata Gory and Laporte, C. multistigmosa (Mannerheim) and C. sallei Waterhouse. Acmaeodera sinaloensis …


Taxonomy And Diagnosis Of Conomyrma Insana (Buckley) And C. Flava (Mccook) (Hymenoptera: Formicidae), Clifford Johnson Sep 1989

Taxonomy And Diagnosis Of Conomyrma Insana (Buckley) And C. Flava (Mccook) (Hymenoptera: Formicidae), Clifford Johnson

Insecta Mundi

Documentation is developed for Conomyrma insana (Buckley) and C. flava (McCook) as valid names for two abundant species of ants in the United States. Taxonomic history, synonymies, diagnostic criteria, distribution and natural history for both species are reviewed. The intraspecific variability, particularly important for C. flava, is summarized. Neotype and lectotype specimens are designated for C. insana and C. flava respectively, and a key provided for all known Conomyrma species in the United States.


The Hairstreak Butterfly Genus Noreena (Lycaenidae, Theclinae) And A New Species From Western Peru, Kurt Johnson Sep 1989

The Hairstreak Butterfly Genus Noreena (Lycaenidae, Theclinae) And A New Species From Western Peru, Kurt Johnson

Insecta Mundi

Noreena fracta is described from xeric habitat near Callao, Peru. Its divergent wing and genitalic characters further indicate high diversity in this seldom-collected thecline group.


The Anthribidae Of The Seychelles And Mascarene Islands: Taxonomy, Keys, And A Bibliographic Catalogue (Coleoptera), Barry D. Valentine Sep 1989

The Anthribidae Of The Seychelles And Mascarene Islands: Taxonomy, Keys, And A Bibliographic Catalogue (Coleoptera), Barry D. Valentine

Insecta Mundi

All Seychelles and Mascarene taxa are discussed. Two subfamilies, eight tribes, and 28 genera are keyed. Xenoderes, new genus, is proposed for Homoeodera snelli Jordan, 1924. New generic synonyms are: Achoragus Jordan, 1914 (=Gomphides Jordan, 1936); Corynaecia Jordan, 1914 (=Megatermis Jordan, 1937). New specific synonym is: Phloeobius longicornis (Fabricius) (=Anthribus cervinus Klug). Additional keys are provided for six genera.


Biology And Characterization Of Prodiplosis Longifila (Diptera: Cecidomyiidae) On Lime In Florida, J. E. Pena, Raymond Gagne, R. Duncan Sep 1989

Biology And Characterization Of Prodiplosis Longifila (Diptera: Cecidomyiidae) On Lime In Florida, J. E. Pena, Raymond Gagne, R. Duncan

USDA Systematic Entomology Laboratory

Prodiplosis longifila Gagne (Diptera: Cecidomyiidae) is a polyphagous, Neotropical species with a known range that extends into southern Florida. This gall midge feeds on the flower ovaries of lime and can cause premature flower abscission. Details of its biology on lime are given, the life stages illustrated, and the three larval instars described in detail.


Synopsis Of The Genera And Subgenera Of The Tribe Peleciini, And Revision Of The Neotropical And Oriental Species (Coleoptera: Carabidae), S. L. Straneo, G. E. Ball Jun 1989

Synopsis Of The Genera And Subgenera Of The Tribe Peleciini, And Revision Of The Neotropical And Oriental Species (Coleoptera: Carabidae), S. L. Straneo, G. E. Ball

Insecta Mundi

Phylogenetic analysis of structural features of adults shows that the tribe Peleciini comprises eight genera, grouped in two subtribes: the southeastern Australian Agonicina (new status), including Pseudagonica Moore, 1960 (type species P. nitida Moore, 1960) and Agonica Sloane, 1920 (type species A. simsoni Sloane, 1920); and the Inabresian Peleciina (new status, with Peleciini and Disphaericini of authors), including the Neotropical Eripus Dejean, 1829 (type species E. scydmaenoides Dejean, 1829), Pelecium Kirby, 1817 (type species P. cyanipes Kirby, 1817), and Stricteripus, new genus (type species Pelecium peruvianum Straneo, 1953), the Oriental Ardistomopsis, new genus (type species Disphaericus myrmex, Andrewes, …


Effect Of Host Plant On The Level Of Virulence Of Nilaparvata Lugens (Homoptera: Delphacidae) On Rice Cultivars, A. H. Bahagiawati, E. A. Heinrichs, F. G. Medrano Jun 1989

Effect Of Host Plant On The Level Of Virulence Of Nilaparvata Lugens (Homoptera: Delphacidae) On Rice Cultivars, A. H. Bahagiawati, E. A. Heinrichs, F. G. Medrano

Department of Entomology: Faculty Publications

The virulence of a planthopper, Nilaparvata lugens (Stål) biotype 3, reared on rice cultivar ASD7and of N. lugens colonies collected on Mindanao Island in the southern Philippines and reared on the widely grown commercial cultivars IR36 and IR42 was compared. Based on plant damage, insect weight, population growth, and feeding activity, the Mindanao N. lugens colonies reared on IR36 and IR42 were more virulent than biotype 3, although ASD7, IR36, and IR42 have the bph2 gene for N. lugens resistance. These results clearly indicate that in the screening of breeding lines for resistance to N. lugens, it is …


Colonization Of Immature Black Flies (Diptera: Simuliidae) On Artificial Substrates In A Nebraska Sandy River, K. P. Pruess Jun 1989

Colonization Of Immature Black Flies (Diptera: Simuliidae) On Artificial Substrates In A Nebraska Sandy River, K. P. Pruess

Department of Entomology: Faculty Publications

Colonization of Simulium bivittatum Malloch and S. luggeri Nicholson and Mickel on artificial substrates exposed for two consecutive time periods of 1, 2, or 4 d was contrasted with colonization after continuous exposures of 2, 4, or 8 d. Reduced colonization of early instars of both species during the second 4-d period was attributed to an aging population, whereas reductions in total black flies after 8 d seemed to be caused by substrate changes. Numbers of pupae increased as exposure time increased.


New Species And Notes On Mexican Hylesininae (Coleoptera: Scolytidae), Thomas Atkinson Mar 1989

New Species And Notes On Mexican Hylesininae (Coleoptera: Scolytidae), Thomas Atkinson

Insecta Mundi

Two new species of Hylesininae, Cnesinus noguerae and Chramesus xalapae, are described from eastern Mexico. Distributional notes are given for an additional nine species of Hylesininae from Mexico. Cladoctonus cubensis Wood and Pseudochramesus jaliscoensis Wood are figured for the first time.