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Articles 7561 - 7590 of 11446

Full-Text Articles in Entomology

Sequence And The Developmental And Tissue-Specific Regulation Of The First Complete Vitellogenin Message From Ticks, Deborah M. Thompson, Sayed M.S. Khalil, Laura A. Jeffers, Daniel E. Sonenshine, Robert D. Mitchell, Christopher J. Osgood, R. Michael Roe Jan 2007

Sequence And The Developmental And Tissue-Specific Regulation Of The First Complete Vitellogenin Message From Ticks, Deborah M. Thompson, Sayed M.S. Khalil, Laura A. Jeffers, Daniel E. Sonenshine, Robert D. Mitchell, Christopher J. Osgood, R. Michael Roe

Biological Sciences Faculty Publications

The first full-length mRNA for vitellogenin (Vg) from ticks was sequenced. This also represents the first complete sequence of Vg from the Chelicerata and of a heme binding Vg. The Vg cDNA from the American dog tick, Dermacentor variabilis was 5744nt in length (GenBank Accession number AY885250), which coded for a protein of 1843aa with a calculated molecular weight of 208kD. This protein had an 18 aa signal sequence, a single RXXR cleavage signal that would generate two subunits (49.5 and 157K in molecular weight) and lipoprotein N-terminal and carboxy von Willebrand factor type D domains. Tryptic digest MS analysis …

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Effect Of Red Imported Fire Ant (Solenopsis Invicta Buren) On The Nesting Success Of Northern Bobwhite (Colinus Virginianus L.), Michael Andrew Seymour Jan 2007

Effect Of Red Imported Fire Ant (Solenopsis Invicta Buren) On The Nesting Success Of Northern Bobwhite (Colinus Virginianus L.), Michael Andrew Seymour

LSU Master's Theses

The Northern Bobwhite (Colinus virginianus L.) has experienced average yearly decline of 3% in the United States from 1966-2005. Factors implicated in decline include habitat destruction, alteration of farm practices, and red imported fire ant (RIFA) (Solenopsis invicta Buren). Effect of RIFA on bobwhites has been a hot topic leading to formation of polarized camps – those who believe RIFA have little effect and those who believe the effect will further threaten the species’ survival. The main objective of this study was to determine if RIFA affect nesting of bobwhites and at what stage in nesting birds are most vulnerable. …

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Mosquito Larval Habitats In A Semiarid Ecosystem In Eritrea: Impact Of Larval Habitat Management On Anopheles Arabiensis Population, Josephat Shililu, Charles Mbogo, Tewolde Ghebremeskel, John Githure, Robert Novak Jan 2007

Mosquito Larval Habitats In A Semiarid Ecosystem In Eritrea: Impact Of Larval Habitat Management On Anopheles Arabiensis Population, Josephat Shililu, Charles Mbogo, Tewolde Ghebremeskel, John Githure, Robert Novak

All Peer-Reviewed Publications

This study investigated the impact of larval management and the temporal variation in larval productivity in Eritrea, a semiarid ecosystem. Results of this study show that mosquito breeding persists throughout the year mainly in stream bed pools. Anopheles arabiensis production in the ephemeral natural aquatic habitats such the streambed pools was high throughout the year and negatively associated with rainfall (r = -0.288, P = 0.047). High densities of An. arabiensis larvae were also recorded from canals and drainage channels at wells and communal water supply points. The numerous water supply locations and wells help sustain malaria transmission by serving …

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Submicroscopic Plasmodium Falciparum Gametocyte Densities Frequently Result In Mosquito Infection, Petra Schneider, J. Teun Bousema, Louis C. Gouagna, Silas Otieno, Marga Van De Vegte-Bolmer, Sabah A. Omar, Robert W. Sauerwein Jan 2007

Submicroscopic Plasmodium Falciparum Gametocyte Densities Frequently Result In Mosquito Infection, Petra Schneider, J. Teun Bousema, Louis C. Gouagna, Silas Otieno, Marga Van De Vegte-Bolmer, Sabah A. Omar, Robert W. Sauerwein

All Peer-Reviewed Publications

Submicroscopic Plasmodium falciparum gametocytemia (< 5,000 gametocytes/mL) is common and may result in mosquito infection. We assessed the relation between gametocyte density and mosquito infection under experimental and field conditions using real-time quantitative nucleic acid sequence-based amplification (QT-NASBA) for gametocyte quantification. Serial dilutions of NF54 P. falciparum gametocytes showed a positive association between gametocyte density and the proportion of infected mosquitoes (β = 6.1; 95% confidence interval [CI], 2.7-9.6; P = 0.001). Successful infection became unlikely below an estimated density of 250-300 gametocytes/mL. In the field, blood samples of 100 naturally infected children showed a positive association between gametocyte density and oocyst counts in mosquitoes (β = 0.38; 95% CI, 0.14-0.61; P = 0.002). The relative contribution to malaria transmission was similar for carriers with submicroscopic and microscopic gametocytemia. Our results show that transmission occurs efficiently at submicroscopic gametocyte densities and that carriers harboring submicroscopic gametocytemia constitute a considerable proportion of the human infectious reservoir. Copyright © 2007 by The American Society of Tropical Medicine and Hygiene.

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Environmental Abundance Of Anopheles (Diptera: Culicidae) Larval Habitats On Land Cover Change Sites In Karima Village, Mwea Rice Scheme, Kenya, Benjamin G. Jacob, Ephantus Muturi, Patrick Halbig, Joseph Mwangangi, R. K. Wanjogu, Enock Mpanga, Jose Funes, Josephat Shililu, John Githure, James L. Regens, Robert J. Novak Jan 2007

Environmental Abundance Of Anopheles (Diptera: Culicidae) Larval Habitats On Land Cover Change Sites In Karima Village, Mwea Rice Scheme, Kenya, Benjamin G. Jacob, Ephantus Muturi, Patrick Halbig, Joseph Mwangangi, R. K. Wanjogu, Enock Mpanga, Jose Funes, Josephat Shililu, John Githure, James L. Regens, Robert J. Novak

All Peer-Reviewed Publications

A study was carried out at Karima Village in the Mwea Rice Irrigation Scheme in Kenya to assess the impact of rice husbandry and associated land cover change for mosquito larval abundance. A multi-temporal, land use land cover (LULC) classification dataset incorporating distributions of Anopheles arabiensis aquatic larval habitats was produced in ERDAS Imagine version 8.7 using combined images from IKONOS at 4m spatial resolution from 2005 and Landsat Thematic Mapper (TM)™ classification data at 30-meters spatial resolution from 1988 for Karima. Of 207 larval habitats sampled, most were either canals (53.4%) or paddies (45.9%), and only one habitat was …

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Larval Habitat Dynamics And Diversity Of Culex Mosquitoes In Rice Agro-Ecosystem In Mwea, Kenya, Ephantus J. Muturi, Josephat I. Shililu, Weidong Gu, Benjamin G. Jacob, John I. Githure, Robert J. Novak Jan 2007

Larval Habitat Dynamics And Diversity Of Culex Mosquitoes In Rice Agro-Ecosystem In Mwea, Kenya, Ephantus J. Muturi, Josephat I. Shililu, Weidong Gu, Benjamin G. Jacob, John I. Githure, Robert J. Novak

All Peer-Reviewed Publications

Introduction of irrigation projects in developing nations has often been blamed for aggravating the problem of mosquito-borne diseases by creating ideal larval habitats for vector mosquitoes. However, whereas several studies have demonstrated the relationship between malaria vectors and irrigation, little work has been done on culicine mosquitoes despite their potential in transmission of filariasis and arboviruses and their significant biting nuisance in these areas. This study examined the diversity of Culex mosquito fauna and their larval habitats at two sites (Murinduko and Kiamachiri) in Mwea, Kenya over a 12-month period. The habitat types present at each site within a 200-meter …

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Distribution And Relative Importance Of Lepidopteran Cereal Stemborers And Their Parasitoids In Uganda, T. Matama-Kauma, F. Schulthess, J. A. Ogwang, J. M. Mueke, C. O. Omwega Jan 2007

Distribution And Relative Importance Of Lepidopteran Cereal Stemborers And Their Parasitoids In Uganda, T. Matama-Kauma, F. Schulthess, J. A. Ogwang, J. M. Mueke, C. O. Omwega

All Peer-Reviewed Publications

Infestation levels and parasitism of lepidopteran stemborers on maize were assessed in four agroecological zones (AEZ) in Uganda. The indigenous noctuid Busseola fusca Fuller (Noctuidae) and the invasive Chilo partellus Swinhoe (Crambidae) were the most important stemborers recorded. C. partellus represented 77% of the stemborers in the Eastern AEZ while B. fusca was dominant in the other AEZs, accounting for 60-79%. The proportion of infested plants was between 16% and 45% and borer density between 0.2 and 1.0 borers per plant. There was no clear relationship between damage and stem tunneling, which is often used to estimate yield loss. Telenomus …

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Chemical Ecology, Fungal Interactions And Forest Stand Correlations Of The Exotic Asian Ambrosia Beetle, Xylosandrus Crassiusculus (Motschulsky) (Curculionidae), Eric Paul Ott Jan 2007

Chemical Ecology, Fungal Interactions And Forest Stand Correlations Of The Exotic Asian Ambrosia Beetle, Xylosandrus Crassiusculus (Motschulsky) (Curculionidae), Eric Paul Ott

LSU Master's Theses

Increasing evidence of non-indigenous ambrosia beetles aggressively attacking hosts in their new environment in the United States has led to concern over the potential for damage to urban trees, nurseries, orchards, and forests. A novel technique of flooding host trees was devised to stimulate ambrosia beetle attacks, with ambrosia beetle attraction peaking four days following flooding. In-situ sampling identified significant differences in the composition, quantity and point of release (leaf or bole) of volatiles emitted by the flooded and non-flooded trees. Coupled gas chromatography electroantennographic detection revealed olfactory sensitivity by the ambrosia beetle Xylosandrus crassiusculus (Motschulsky) to 29 of these …

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Detection Of West Nile Virus Activity In Male And Female Mosquitoes, And Evaluation Of Host-Utilization Patterns Of Mosquitoes, In East Baton Rouge Parish, Louisiana, Andrew James Mackay Jan 2007

Detection Of West Nile Virus Activity In Male And Female Mosquitoes, And Evaluation Of Host-Utilization Patterns Of Mosquitoes, In East Baton Rouge Parish, Louisiana, Andrew James Mackay

LSU Doctoral Dissertations

ABSTRACT Host utilization patterns of female mosquitoes, and WNV infection rates in male and female mosquitoes, were examined in East Baton Rouge Parish to identify potential vectors of West Nile virus (WNV). A total of 244,374 female mosquitoes were collected between November 2002 and October 2004 and tested by viral isolation. Additionally, 131,896 female mosquitoes were tested by VecTest in 2003, and 167,175 female mosquitoes were tested by RT-PCR in 2004. West Nile virus was isolated from 17 of 36 mosquito species assayed by virus isolation, WNV antigens were detected in 9 of 27 species tested by VecTest, and WNV …

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Evaluating Precision Agricultural Technologies In A Louisiana Cotton Insect Pest Management System, Joshua Heath Temple Jan 2007

Evaluating Precision Agricultural Technologies In A Louisiana Cotton Insect Pest Management System, Joshua Heath Temple

LSU Master's Theses

A variable rate pesticide application system was developed and tested during 2001 for an agricultural aircraft in Louisiana. Using technology available to the agricultural aviation industry, a variable rate prescription of insecticide was successfully applied to a cotton field in 2002. These studies compared the efficacy and value of spatially variable insecticide (SVI) applications based on yield maps to the producer standard, whole-field broadcast treatments. Insecticide prescriptions were created from historical yield and production data. Treatments included whole-field broadcast sprays, yield-based SVI sprays, and profit-based SVI sprays. Twenty-two SVI applications were made to test fields from 2002-2005 using two aircraft …

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Culture-Independent Identification Of Gut Bacteria In Fourth-Instar Red Imported Fire Ant, Solenopsis Invicta Buren, Larvae, Albert Hon-Yu Lee Jan 2007

Culture-Independent Identification Of Gut Bacteria In Fourth-Instar Red Imported Fire Ant, Solenopsis Invicta Buren, Larvae, Albert Hon-Yu Lee

LSU Doctoral Dissertations

Red imported fire ants (RIFA), Solenopsis invicta Buren, are medical, urban, and agricultural pests from South America. Fourth-instar larvae are used by the colony to digest solid food and then regurgitate it for consumption by workers and queens. Larvae are an ideal source of investigations of obligate endosymbiotic bacteria possibly involved in nutrient distributions. I attempted to first identify what bacteria species are in the guts of larvae followed by antibiotic and microscopy work to further study their roles in the ants. The composition of the bacterial community in fire ant larvae was described with culture-independent methods utilizing 16S rDNA …

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Population Ecology Of Pseudacteon Tricuspis Borgmeier (Diptera: Phoridae), An Introduced Parasitoid Of The Red Imported Fire Ant Solenopsis Invicta Buren (Hymenoptera: Formicidae) In Louisiana, Donald Charles Henne Jan 2007

Population Ecology Of Pseudacteon Tricuspis Borgmeier (Diptera: Phoridae), An Introduced Parasitoid Of The Red Imported Fire Ant Solenopsis Invicta Buren (Hymenoptera: Formicidae) In Louisiana, Donald Charles Henne

LSU Doctoral Dissertations

Aspects of the population ecology of a parasitoid (Pseudacteon tricuspis) of the red imported fire ant (Solenopsis invicta) in Louisiana were studied. The spatio-temporal abundance patterns, dispersal, population spread, aggregation, direct mutual interference and functional response characteristics of this parasitoid were studied to address deficiencies in our knowledge about phorid flies, particularly Pseudacteon parasitoids. This endoparasitoid was discovered to manipulate host ant behavior in ways that benefit its own survival. Laboratory experiments to gain insights into behavioral and functional responses revealed that fly aggregations were density-dependent and interference was not significant when 1-3 females were simultaneously confined with hosts, although …

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Detection Of The Bloodmeal Origin Of Mosquitoes Collected At Alligator Farms, And West Nile Virus Activity In Mosquitoes Collected From Alligator Farms, Sentinel Chicken Surveillance Sites, And Larval Habitats, Isik Unlu Jan 2007

Detection Of The Bloodmeal Origin Of Mosquitoes Collected At Alligator Farms, And West Nile Virus Activity In Mosquitoes Collected From Alligator Farms, Sentinel Chicken Surveillance Sites, And Larval Habitats, Isik Unlu

LSU Doctoral Dissertations

A three year study was conducted to determine if testing mosquitoes collected in modified sentinel chicken boxes for West Nile Virus (WNV) or testing sentinel chickens for WNV antibody would detect WNV activity prior to reports of human cases in East Baton Rouge (EBR) Parish, Louisiana. In one year we also compared the effectiveness of CDC light traps, gravid traps, and sentinel chicken box traps for collecting WNV positive mosquitoes. In all three years, we detected WNV activity in mosquito collections from sentinel chicken box traps prior to the onset of human cases, while there were no seroconversions in the …

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Farmers' Perceptions Of Importance, Control Practices And Alternative Hosts Of Maize Stemborers In Uganda, T. Kalule, Z. R. Khan, G. Bigirwa, J. Alupo, S. Okanya, J. A. Pickett, L. J. Wadhams Dec 2006

Farmers' Perceptions Of Importance, Control Practices And Alternative Hosts Of Maize Stemborers In Uganda, T. Kalule, Z. R. Khan, G. Bigirwa, J. Alupo, S. Okanya, J. A. Pickett, L. J. Wadhams

All Peer-Reviewed Publications

A survey was conducted in Tororo, Bugiri and Kapchorwa districts in eastern and northeastern Uganda on farmers' perceptions of constraints in maize production. Farmers in Tororo and Bugiri consistently ranked stemborers and striga as the major production constraints in maize growing, while those in Kapchorwa ranked stemborers and lack of capital as the most important. Approximately 35 and 40% of the farmers in Tororo and Bugiri, respectively, identified stemborers as the 'caterpillar' that destroys their maize. In Kapchorwa, 50% of the farmers identified stemborers. Pesticide application was the most common control measure while the use of indigenous and cultural control …

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A Predator From East Africa That Chooses Malaria Vectors As Preferred Prey, Ximena J. Nelson, Robert R. Jackson Dec 2006

A Predator From East Africa That Chooses Malaria Vectors As Preferred Prey, Ximena J. Nelson, Robert R. Jackson

All Peer-Reviewed Publications

Background. All vectors of human malaria, a disease responsible for more than one million deaths per year, are female mosquitoes from the genus Anopheles. Evarcha culicivora is an East African jumping spider (Salticidae) that feeds indirectly on vertebrate blood by selecting blood-carrying female mosquitoes as preferred prey. Methodology/Principal Findings. By testing with motionless lures made from mounting dead insects in lifelike posture on cork discs, we show that E. culicivora selects Anopheles mosquitoes in preference to other mosquitoes and that this predator can identify Anopheles by static appearance alone. Tests using active (grooming) virtual mosquitoes rendered in 3-D animation show …

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World Revision Of The Genus Triaenodes (Trichoptera: Leptoceridae), Junmi Hur Dec 2006

World Revision Of The Genus Triaenodes (Trichoptera: Leptoceridae), Junmi Hur

All Dissertations

One genus, Triaenodes of the long-horned caddisfly family Leptoceridae includes approximately 245 species globally and is cosmopolitan in distribution, occurring in all major faunal regions. The species of the genus, along with other species of caddisflies, are especially sensitive to pollution and are used by developed countries to monitor water quality.
Two hundred twenty-one species are reviewed and an additional 9 species are new to science. Twenty-six species groups are recognized in these subgenera of Triaenodes. The genus Triaenodes is divided here into seven monophyletic subgenera. The subgenus Ylodes Milne, 1934, has 15 species distributed in the Australasian, East …

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Host Shift To Peas In The Diamondback Moth Plutella Xylostella (Lepidoptera: Plutellidae) And Response Of Its Parasitoid Diadegma Mollipla (Hymenoptera: Ichneumonidae), A. Rossbach, B. Löhr, S. Vidal Dec 2006

Host Shift To Peas In The Diamondback Moth Plutella Xylostella (Lepidoptera: Plutellidae) And Response Of Its Parasitoid Diadegma Mollipla (Hymenoptera: Ichneumonidae), A. Rossbach, B. Löhr, S. Vidal

All Peer-Reviewed Publications

Host shifts in herbivorous insects are thought to sometimes provide enemy-free space on the novel host plant. A population of the diamondback moth Plutella xylostella (Linnaeus), an oligophagous pest on crucifers, recently shifted to sugar snap- and snowpeas (Pisum sativum) in Kenya, resulting in heavy damage to these crops. The impact of this host shift on the interaction with Diadegma mollipla (Holmgren), one of the most frequent parasitoid species attacking P. xylostella in this area, was investigated. Parasitism rates and development of two strains of D. mollipla, one reared from a cabbage-feeding strain of P. xylostella and the second from …

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Revision Of The Males Of The Hydrospyche Scalaris Group In North America (Trichoptera: Hydropsychidae), James Korecki Dec 2006

Revision Of The Males Of The Hydrospyche Scalaris Group In North America (Trichoptera: Hydropsychidae), James Korecki

All Theses

The genus Hydrospsyche Pictet sensu stricto in North America is divided into three species groups, the Hydrospyche cuanis Ross Group Ross, the Hydropsyche depravata Hagen Group Ross, and the Hydropsyche scalaris Hagen Group Banks. Thirty-one of thirty-six described species are recognized in the Hydropsyche scalaris Group. Examination of adult males resulted in 5 junior subjective synonyms and one possible new species based on a single exemplar from Sevier County, Utah. Hydropsyche bidens Ross 1938, H. orris Ross 1938, and H. alvata Denning 1949 are junior synonyms of Hydropsyche incommoda Hagen 1861. Hydrospyche rossi Flint, Voshell and Parker, 1979 and H. …

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Phylogeny Of Family Limnephilidae (Insecta: Trichoptera) With Emphasis On Tribe Limnephilini (Subfamily Limnephilinae), Tatyana Vshivkova Dec 2006

Phylogeny Of Family Limnephilidae (Insecta: Trichoptera) With Emphasis On Tribe Limnephilini (Subfamily Limnephilinae), Tatyana Vshivkova

All Dissertations

Morphological characters of adults and immature stages of Limnephilidae were analyzed with modern phylogenetic techniques, including traditionally used characters and some that have been poorly investigated or never studied. For the first time, monophyly is inferred for the following nominotypical taxa: superfamily Limnephiloidea, family Limnephilidae, subfamily Limnephilinae, tribe Limnephilini, and Limnephilus sensu stricto. Some other higher taxa are distinguished based on high bootstrap support, unreversed synapomorphies, and/or topography, including a new family-group category for Trichoptera, 'Branch,' more inclusive than the family category and less inclusive than the superfamily category. These new taxa in Limnephiloidea are as follows: Brachycentrida New Branch …

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A New Genus Of Moss-Inhabiting Flea Beetles (Coleoptera: Chrysomelidae) From The Dominican Republic, Alexander S. Konstantinov, Maria Lourdes Chamorro-Lacayo Dec 2006

A New Genus Of Moss-Inhabiting Flea Beetles (Coleoptera: Chrysomelidae) From The Dominican Republic, Alexander S. Konstantinov, Maria Lourdes Chamorro-Lacayo

USDA Systematic Entomology Laboratory

Kiskeya new genus and two new species (K. baorucae and K. neibae), from the Dominican Republic are described and illustrated. Kiskeya is compared to Monotalla Bechyne, Normaltica Konstantinov, and Clavicornaltica Scherer. Geographic ranges in which Greater Antillean endemics have closest relatives in the Old World are discussed.

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Differential Induction Of Proteins In Anopheles Gambiae Sensu Stricto (Diptera: Culicidae) Larvae In Response To Heavy Metal Selection, Paul Odhiambo Mireji, Joseph Keating, Eucharia Kenya, Charles Mbogo, Hudson Nyambaka, Ellie Osir, John Githure, John Beier Dec 2006

Differential Induction Of Proteins In Anopheles Gambiae Sensu Stricto (Diptera: Culicidae) Larvae In Response To Heavy Metal Selection, Paul Odhiambo Mireji, Joseph Keating, Eucharia Kenya, Charles Mbogo, Hudson Nyambaka, Ellie Osir, John Githure, John Beier

All Peer-Reviewed Publications

Investigations were conducted to establish the magnitude and pattern of differential expression of proteins due to generational selection of third instar Anopheles gambiae s.s. Giles larvae by cadmium, copper and lead heavy metals, the three possible common urban pollutants. A susceptible strain of A. gambiae s.s. third instar larvae was separately placed under selection pressure with cadmium, copper and lead at LC30 and controls through five generations. First, third and fifth generation selection survivors were screened for differentially expressed proteins relative to non-exposed control by two-dimensional gel electrophoresis. Distribution patterns of the spots were analyzed by χ2 or Fishers' exact …

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Survival Of Immature Anopheles Arabiensis (Diptera: Culicidae) In Aquatic Habitats In Mwea Rice Irrigation Scheme, Central Kenya, Joseph M. Mwangangi, Ephantus J. Muturi, Josephat Shililu, Simon M. Muriu, Benjamin Jacob, Ephantus W. Kabiru, Charles M. Mbogo, John Githure, Robert Novak Nov 2006

Survival Of Immature Anopheles Arabiensis (Diptera: Culicidae) In Aquatic Habitats In Mwea Rice Irrigation Scheme, Central Kenya, Joseph M. Mwangangi, Ephantus J. Muturi, Josephat Shililu, Simon M. Muriu, Benjamin Jacob, Ephantus W. Kabiru, Charles M. Mbogo, John Githure, Robert Novak

All Peer-Reviewed Publications

Background: The survivorship and distribution of Anopheles arabiensis larvae and pupae was examined in a rice agroecosystem in Mwea Irrigation Scheme, central Kenya, from August 2005 to April 2006, prior to implementation of larval control programme. Methods: Horizontal life tables were constructed for immatures in semi-field condition. The time spent in the various immature stages was determined and survival established. Vertical life tables were obtained from five paddies sampled by standard dipping technique. Results: Pre-adult developmental time for An. arabiensis in the trays in the experimental set up in the screen house was 11.85 days from eclosion to emergence. The …

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Trapping Phyllophaga Spp. (Coleoptera: Scarabaeidae: Melolonthinae) In The United States And Canada Using Sex Attractants., Paul S. Robbins, Steven R. Alm, Charles D. Armstrong, Anne L. Averille, Thomas C. Baker, Robert J. Bauernfiend, Frederick P. Baxendale, S. Kris Braman, Rick L. Brandenburg, Daniel B. Cash, Gary J. Couch, Richard S. Cowles, Robert L. Crocker, Zandra D. Delamar, Timothy G. Dittl, Sheila M. Fitzpatrick, Kathy L. Flanders, Tom Forgatsch, Timothy J. Gibb, Bruce D. Gill, Daniel O. Gilrein, Clyde Gorsuch, Abner M. Hammond, Patricia D. Hastings, David W. Held, James L. Holliman, William G. Hudson, Michael G. Klein, Vera L. Krischik, David J. Lee, Charles E. Linn Jr., Nancy J. Luce, Kenna Mackenzie, Catherine M. Mannion, Sridhar Polavarapu, Daniel A. Potter, Daniel A. Potter, Wendell Roelofs, Brian M. Royals, Glenn A. Salsbury, Nathan M. Schiff, David J. Shetlar, Margaret Skinner, Beverly L. Sparks, Jessica A. Sutschek, Timothy P. Sutschek, Stanley R. Swier, Martha M. Sylvia, Neil J. Vickers, Patricia A. Vittum, Richard Weidman, Donald C. Weber, R. Chris Williamson, Michael G. Villani Nov 2006

Trapping Phyllophaga Spp. (Coleoptera: Scarabaeidae: Melolonthinae) In The United States And Canada Using Sex Attractants., Paul S. Robbins, Steven R. Alm, Charles D. Armstrong, Anne L. Averille, Thomas C. Baker, Robert J. Bauernfiend, Frederick P. Baxendale, S. Kris Braman, Rick L. Brandenburg, Daniel B. Cash, Gary J. Couch, Richard S. Cowles, Robert L. Crocker, Zandra D. Delamar, Timothy G. Dittl, Sheila M. Fitzpatrick, Kathy L. Flanders, Tom Forgatsch, Timothy J. Gibb, Bruce D. Gill, Daniel O. Gilrein, Clyde Gorsuch, Abner M. Hammond, Patricia D. Hastings, David W. Held, James L. Holliman, William G. Hudson, Michael G. Klein, Vera L. Krischik, David J. Lee, Charles E. Linn Jr., Nancy J. Luce, Kenna Mackenzie, Catherine M. Mannion, Sridhar Polavarapu, Daniel A. Potter, Daniel A. Potter, Wendell Roelofs, Brian M. Royals, Glenn A. Salsbury, Nathan M. Schiff, David J. Shetlar, Margaret Skinner, Beverly L. Sparks, Jessica A. Sutschek, Timothy P. Sutschek, Stanley R. Swier, Martha M. Sylvia, Neil J. Vickers, Patricia A. Vittum, Richard Weidman, Donald C. Weber, R. Chris Williamson, Michael G. Villani

Department of Entomology: Faculty Publications

The sex pheromone of the scarab beetle, Phyllophaga anxia, is a blend of the methyl esters of two amino acids, L-valine and L-isoleucine. A field trapping study was conducted, deploying different blends of the two compounds at 59 locations in the United States and Canada. More than 57,000 males of 61 Phyllophaga species (Coleoptera: Scarabaeidae: Melolonthinae) were captured and identified. Three major findings included: (1) widespread use of the two compounds [of the 147 Phyllophaga (sensu stricto) species found in the United States and Canada, males of nearly 40% were captured]; (2) in most species intraspecific male …

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An Overview Of The Classification And Evolution Of The Major Scarab Beetle Clades (Coleoptera: Scarabaeoidea) Based On Preliminary Molecular Analyses, Andrew B. T. Smith, David C. Hawks, John M. Heraty Nov 2006

An Overview Of The Classification And Evolution Of The Major Scarab Beetle Clades (Coleoptera: Scarabaeoidea) Based On Preliminary Molecular Analyses, Andrew B. T. Smith, David C. Hawks, John M. Heraty

University of Nebraska State Museum: Entomology Papers

We present a preliminary overview of our molecular phylogenetics research on the superfamily Scarabaeoidea. The molecular data consists of 28S ribosomal DNA sequences (mainly D2 and D3 expansion regions) for over 600 taxa and 18S ribosomal DNA sequences (mainly E17 to E35 expansion regions) for over 150 representative taxa within the lineages sampled. Based on our preliminary molecular phylogenetic results, Scarabaeoidea includes three major groups: 1) Geotrupidae, Passalidae, and Pleocomidae; 2) Lucanidae, Diphyllostomatidae, Trogidae, and Glaresidae; and 3) Hybosoridae, Ochodaeidae, Glaphyridae, and Scarabaeidae. The broad evolutionary patterns within the Scarabaeoidea are discussed with respect to phylogeny and evolution.

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A Review Of The Family-Group Names For The Superfamily Scarabaeoidea (Coleoptera) With Corrections To Nomenclature And A Current Classification, Andrew B. T. Smith Nov 2006

A Review Of The Family-Group Names For The Superfamily Scarabaeoidea (Coleoptera) With Corrections To Nomenclature And A Current Classification, Andrew B. T. Smith

University of Nebraska State Museum: Entomology Papers

For the first time, all family-group names in the superfamily Scarabaeoidea (Coleoptera) are evaluated using the International Code of Zoological Nomenclature to determine their availability and validity. A total of 383 family-group names were found to be available, and all are reviewed to scrutinize the correct spelling, author, date, nomenclatural availability and validity, and current classification status. Numerous corrections are given to various errors that are commonly perpetuated in the literature. A reversal of precedence is used to preserve the prevailing usage of the following family-group names: Eupariini Schmidt, 1910 (over Ataeniini Harold, 1868); Pachydemini Burmeister, 1855 (over Elaphocerini Blanchard, …

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Scarab Beetles In Human Culture, Brett C. Ratcliffe Nov 2006

Scarab Beetles In Human Culture, Brett C. Ratcliffe

University of Nebraska State Museum: Entomology Papers

The use of scarab beetles (Coleoptera: Scarabaeidae) by primarily pre- and non-industrial peoples throughout the world is reviewed. These uses consist of (1) religion and folklore, (2) folk medicine, (3) food, and (4) regalia and body ornamentation. The use of scarabs in religion or cosmology, once widespread in ancient Egypt, exists only rarely today in other cultures. Scarabs have a minor role in folk medicine today although they may have been more important in the past. The predominant utilization of these beetles today, and probably in the past as well, is as food with emphasis on the larval stage. Lastly, …

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Hexapod Herald - Vol. 18, No. 5, November 2006 Nov 2006

Hexapod Herald - Vol. 18, No. 5, November 2006

Hexapod Herald and Other Entomology Department Newsletters

Contents:
Congratulations
Welcome
Grants
Publications
Meet a Distance Student
Student News
Travel
Condolences

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Nebline, November/December 2006 Nov 2006

Nebline, November/December 2006

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Extension Offers Guardianship Trainings Mandated By the Nebraska Supreme Court
Guardianships Happen for Variety of Reasons
Pruning Ornamental Plants
Spark Up the Fireplace with Color
Test Nitrogen Levels this Fall, Begin Planning for Spring Fertilization
Free Soybean Cyst Nematode Sample Kits Available
Farming No-Till Increases for Major Nebraska Crops, Better for Environment, Fuel Saved
Computerized Farm Financial Recordkeeping Workshops
Preparing a Thanksgiving Feast Does Not Have to be Difficult!
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Electrophysiological Responses Of The Lepidopterous Stemborers Chilo Partellus And Busseola Fusca To Volatiles From Wild And Cultivated Host Plants, M. A. Birkett, K. Chamberlain, Z. R. Khan, J. A. Pickett, T. Toshova, L. J. Wadhams, C. M. Woodcock Nov 2006

Electrophysiological Responses Of The Lepidopterous Stemborers Chilo Partellus And Busseola Fusca To Volatiles From Wild And Cultivated Host Plants, M. A. Birkett, K. Chamberlain, Z. R. Khan, J. A. Pickett, T. Toshova, L. J. Wadhams, C. M. Woodcock

All Peer-Reviewed Publications

The stemborers Chilo partellus and Busseola fusca are major pests of subsistence cereal farming in Africa. Volatiles released by two cultivated hosts, sorghum and maize (Sorghum bicolor and Zea mays), and two wild grass hosts, Pennisetum purpureum and Hyparrhenia tamba, were collected by air entrainment. Electrophysiologically active components in these samples were detected by coupled gas chromatography-electroantennography (GC-EAG), and the active peaks identified by gas chromatography-mass spectrometry. A total of 41 compounds were identified from the four plant species, all of which, as well as two unidentified compounds, elicited an electrophysiological response from one or both of the stemborers. The …

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Laboratory Environment Effects On The Reproduction And Mortality Of Adult Screwworm (Diptera: Calliphoridae), Dennis Berkebile, Agustin Sagel, Steven R. Skoda, John E. Foster Nov 2006

Laboratory Environment Effects On The Reproduction And Mortality Of Adult Screwworm (Diptera: Calliphoridae), Dennis Berkebile, Agustin Sagel, Steven R. Skoda, John E. Foster

Department of Entomology: Faculty Publications

The New World screwworm, Cochliomyia hominivorax Coquerel, is mass reared for screwworm eradication initiatives that use the sterile insect technique. New methods for rearing have helped to reduce the cost of the eradication program. We examined the effect and interaction of three temperatures (24.5, 29.5 and 34.5ºC), two diets (2% spray-dried blood plus 0.05% vitamins and corn syrup carrageenan) and three population densities (300, 400, and 500 flies/cage) on egg production, egg hatch, number of observable fertilized eggs, mortality (male and female) and ovarian development. The three population densities did not affect any of the parameters monitored. Using the protein …

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