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2009

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Articles 121 - 150 of 215

Full-Text Articles in Entomology

Effects Of Soldier-Derived Terpenes On Soldier Caste Differentiation In The Termite (Reticulitermes Flavipes), Matthew R. Tarver, Erica A. Schmelz, James R. Rocca, Michael E. Scharf Feb 2009

Effects Of Soldier-Derived Terpenes On Soldier Caste Differentiation In The Termite (Reticulitermes Flavipes), Matthew R. Tarver, Erica A. Schmelz, James R. Rocca, Michael E. Scharf

Department of Entomology Faculty Publications

Primer pheromones play key roles in regulating division of labor, which is one of the most fundamental and defining aspects of insect sociality. Primer pheromones are chemical messengers that transmit hormone-like messages among colony members; in recipients these messages can either induce or suppress phenotypic caste differentiation. Here, we investigated soldier-caste-derived chemicals as possible primer pheromones in the lower termite Reticulitermes flavipes, a species for which no primer pheromones have yet been identified. We determined that soldier head extracts (SHE), when provided to totipotent workers along with the insect morphogenetic juvenile hormone (JH), significantly enhanced soldier caste differentiation. When …


Submicroscopic Gametocytes And The Transmission Of Antifolate-Resistant Plasmodium Falciparum In Western Kenya, Mayke J.A.M. Oesterholt, Michael Alifrangis, Colin J. Sutherland, Sabah A. Omar, Patrick Sawa, Christina Howitt, Louis C. Gouagna, Robert W. Sauerwein, Teun Bousema Feb 2009

Submicroscopic Gametocytes And The Transmission Of Antifolate-Resistant Plasmodium Falciparum In Western Kenya, Mayke J.A.M. Oesterholt, Michael Alifrangis, Colin J. Sutherland, Sabah A. Omar, Patrick Sawa, Christina Howitt, Louis C. Gouagna, Robert W. Sauerwein, Teun Bousema

All Peer-Reviewed Publications

Background: Single nucleotide polymorphisms (SNPs) in the dhfr and dhps genes are associated with sulphadoxine-pyrimethamine (SP) treatment failure and gametocyte carriage. This may result in enhanced transmission of mutant malaria parasites, as previously shown for chloroquine resistant parasites. In the present study, we determine the association between parasite mutations, submicroscopic P. falciparum gametocytemia and malaria transmission to mosquitoes. Methodology/Principal Findings: Samples from children treated with SP alone or in combination with artesunate (AS) or amodiaquine were genotyped for SNPs in the dhfr and dhps genes. Gametocytemia was determined by microscopy and Pfs25 RNA-based quantitative nucleic acid sequence-based amplification (Pfs25 QT-NASBA). …


A Preliminary Study Of The Diversity And Temporal Patterns Of Abundance Of Tachinidae In Southwestern Ohio, Diego J. Inclán, John O. Stireman Iii Feb 2009

A Preliminary Study Of The Diversity And Temporal Patterns Of Abundance Of Tachinidae In Southwestern Ohio, Diego J. Inclán, John O. Stireman Iii

Biological Sciences Faculty Publications

Although tachinids are one of the most diverse families of Diptera (Irwin et al. 2003) and represent the largest group of non-hymenopteran parasitoids (Belshaw 1994), the ecology of most species in the family is poorly known. Most of the studies that have focused on tachinids are related to taxonomic descriptions. Currently, our knowledge is very limited in terms of the diversity and distribution of populations across time and space, especially in the Nearctic and Neotropical Regions (Stireman 2008). There have been a number of recent studies focused on diversity and temporal distributions of tachinids in the Palaearctic Region such as …


Biological Control Of Marmara Gulosa Guillén And Davis In The San Joaquin Valley, Crystal A. Kirkland Feb 2009

Biological Control Of Marmara Gulosa Guillén And Davis In The San Joaquin Valley, Crystal A. Kirkland

Master's Theses

Peelminer, Marmara gulosa Davis and Guillén, has been reported as a sporadic pest in California and Arizona since 1998. Marmara gulosa has been a persistent pest in the San Joaquin Valley of California (USA) since 1998. Prior to 2000 the only reports of high populations of citrus peelminer were in the Coachella Valley. The larval stages of M. gulosa create serpentine mines scarring the upper epidermal layers of citrus rind, rendering it unacceptable for fresh market sale. Chemicals have failed to provide adequate control of M. gulosa; thus, the use of natural enemies is considered the best long-term option. …


Nebline, February 2009 Feb 2009

Nebline, February 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

13 Fun Ways to Eat More Fruites and Vegetables!
Farmland Leasing Workshop, Feb. 11
Soil Fertility and Phosphorus
Private Pesticide Applicator Certification Opportunities
The Value of Landscaping
Are You Winning the “Fruit & Vegetable Bowl Game”?
5 Main Dishes—Each Using Only 5 Ingredients
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Beltline FCE Club: 1931–2008
Household Hints: How to Keep Red Clothes from Turning Pink
Small Steps to Health and Wealth
2009 All-America Selections
Starting Tender Perennials Indoors
Garden Guide: Things to Do This Month
Tree Squirrels and Rabbits are Active in Winter
Beginning Beekeeping …


Parasitoids Associated With Mussidia Spp. (Lepidoptera: Pyralidae) In Kenya, Benjamin Kimwele Muli, Fritz Schulthess, Johnnie Van Den Berg Feb 2009

Parasitoids Associated With Mussidia Spp. (Lepidoptera: Pyralidae) In Kenya, Benjamin Kimwele Muli, Fritz Schulthess, Johnnie Van Den Berg

All Peer-Reviewed Publications

The pyralid Mussidia nigrivenella, a pest of cotton, maize and Phaseolus bean in West Africa, has never been reported as a crop pest in East and Southern Africa, although reportedly it exists in the wild. It is hypothesized that the difference in pest status of M. nigrivenella between western and eastern Africa was either due to differences in natural enemy compositions or that there exist several populations and/or species of Mussidia, which vary in their host plant range. Thus, a catalogue of parasitoids of Mussidia spp. was established through surveys in mid-altitude and coastal Kenya, between 2006 and 2007. Mussidia …


Revision Of The Genus Chalcasthenes Arrow (Coleoptera: Scarabaeidae: Dynastinae: Oryctoderini) From The Solomon Islands, Mary Liz Jameson, Brett C. Ratcliffe Jan 2009

Revision Of The Genus Chalcasthenes Arrow (Coleoptera: Scarabaeidae: Dynastinae: Oryctoderini) From The Solomon Islands, Mary Liz Jameson, Brett C. Ratcliffe

University of Nebraska State Museum: Entomology Papers

Abstract The genus Chalcasthenes Arrow (Dynastinae: Oryctoderini), a scarab beetle genus endemic to the Solomon Islands, is reviewed. Based on examination of type specimens, the genus Strehlia Frey (Rutelinae: Rutelini: Parastasiina) is a new junior synonym of Chalcasthenes. The historical classification of these genera (either in the subfamily Dynastinae or Rutelinae) and character-based criteria for assigning the taxa to the Dynastinae are provided. We discuss character states that support the monophyly of members of the genus Chalcasthenes, comment on the distribution and biogeography of species in the genus and provide a key to species. The genus includes four …


The Genus Arnoldiola (Diptera: Cecidomyiidae) In The Nearctic Region, With New Synonymies And Combinations, Raymond Gagne Jan 2009

The Genus Arnoldiola (Diptera: Cecidomyiidae) In The Nearctic Region, With New Synonymies And Combinations, Raymond Gagne

USDA Systematic Entomology Laboratory

Six nominal species of gall midges (Diptera: Cecidomyiidae) originally assigned to four separate genera and recognized here as three valid species are transferred to Arnoldiola Strand. They are as follows: Arnoldiola azaleae (Felt 1907a), new combination (from Oligotrophus Latreille); Arnoldiola caudata (Felt 1915), new combination (from Phytophaga Rondani) and new synonym of A. azaleae; Arnoldiola brevicornis (Felt 1907a), new combination (from Janetiella Kieffer); Arnoldiola tiliacei (Felt 1907a), new combination (from Janetiella) and new synonym of A. brevicornis; Arnoldiola castaneae (Felt 1909), new combination (from Rhopalomyia Rubsaamen); and Arnoldiola ligni (Felt 1915), new combination (from Janetiella) and new synonym …


Two New Species Of Compsolechia Meyrick (Lepidoptera: Gelechiidae) Associated With Casearia (Flacourtiaceae) In Coastal Dry-Forests Of Western Mexico, David Adamski, Karina Boege Jan 2009

Two New Species Of Compsolechia Meyrick (Lepidoptera: Gelechiidae) Associated With Casearia (Flacourtiaceae) In Coastal Dry-Forests Of Western Mexico, David Adamski, Karina Boege

USDA Systematic Entomology Laboratory

Two new species of Compsolechia Meyrick (Lepidoptera: Gelechiidae), C. camilotus Adamski and C. vittatiella Adamski, are described from dry-forests in western Mexico. Larvae of both species were collected on leaves of Casearia nitida (L.) Jacq. (Flacourtiaceae), a new host record for the genus. Photographs of larvae and their shelters and adult moths are provided. In addition, illustrations of the male and female genitalia of the adults, larval chaetotaxal maps, and scanning electron micrographs for both species are included. The pupa of only C. camilotus was available for description.


Two New Species Of Wockia Heinemann (Lepidoptera: Urodidae) From Coastal Dry-Forests In Western Mexico, David Adamski, Karina Boege, Jean-Francois Landry, Jae-Cheon Sohn Jan 2009

Two New Species Of Wockia Heinemann (Lepidoptera: Urodidae) From Coastal Dry-Forests In Western Mexico, David Adamski, Karina Boege, Jean-Francois Landry, Jae-Cheon Sohn

USDA Systematic Entomology Laboratory

Two new species of Wockia Heinemann, 1870 (Lepidoptera: Urodidae), W. chewbacca and W. mexicana, are described from primary dry-forests in western Mexico. A new host record is reported for the genus from larvae of W. chewbacca feeding on leaves of Casearia nitida (L.) Jacq. (Salicaceae). Several shared genitalic features and DNA barcode similarities suggest a congeneric relationship between the two Mexican species but uncertain generic placement within Urodidae. Scanning electron micrographs of the larva and illustrations of the larva and pupa of Wockia chewbacca are provided, along with illustrations of male and female genitalia of both Mexican species. Three …


The Evolution Of Food Preferences In Coccinellidae, José Adriano Giorgi, Natalia J. Vandenberg, Joseph V. Mchugh, Juanita A. Forrester, S. Adam Ślipiński, Kelly B. Miller, Lori R. Shapiro, Michael F. Whiting Jan 2009

The Evolution Of Food Preferences In Coccinellidae, José Adriano Giorgi, Natalia J. Vandenberg, Joseph V. Mchugh, Juanita A. Forrester, S. Adam Ślipiński, Kelly B. Miller, Lori R. Shapiro, Michael F. Whiting

USDA Systematic Entomology Laboratory

Despite the familiarity and economic significance of Coccinellidae, the family has thus far escaped analysis by rigorous phylogenetic methods. As a result, the internal classification remains unstable and there is no framework with which to interpret evolutionary events within the family. Coccinellids exhibit a wide range of preferred food types spanning kingdoms, and trophic levels. To provide an evolutionary perspective on coccinellid feeding preferences, we performed a phylogenetic analysis of 62 taxa based on the ribosomal nuclear genes 18S and 28S. The entire dataset consists of 3957 aligned nucleotide sites, 787 of which are parsimony informative. Bayesian and parsimony analyses …


Book Review Of The Wood Midges (Diptera: Cecidomyiidae: Lestremiinae) Of Fennoscandia And Denmark By Mathias Jaschhof And Catrin Jaschhof, Raymond Gagne Jan 2009

Book Review Of The Wood Midges (Diptera: Cecidomyiidae: Lestremiinae) Of Fennoscandia And Denmark By Mathias Jaschhof And Catrin Jaschhof, Raymond Gagne

USDA Systematic Entomology Laboratory

The present study is the result of a four-year project supported by the Swedish Taxonomy Initiative to collect and systematize the Lestremiinae. It fleshes out the skeleton presented in Jaschhof (1998) of this group for the Palearctic Region, bringing to bear the broad knowledge gained from the authors’ studies since 1998 from Japan, Malaysia, South Africa, and New Zealand and Mathias Jaschhof’s subsequent studies of the Mamaev types. More species of wood midges (n = 203) are now known from Sweden than any other country or all of the Western Hemisphere. The fact that until the 1990s only four species …


Redescription Of Anovia Circumclusa (Gorham) (Coleoptera: Coccinellidae: Noviini), With First Description Of The Egg, Larva, And Pupa, And Notes On Adult Intraspecific Elytral Pattern Variation, Juanita A. Forrester, Natalia J. Vandenberg, Joseph V. Mchugh Jan 2009

Redescription Of Anovia Circumclusa (Gorham) (Coleoptera: Coccinellidae: Noviini), With First Description Of The Egg, Larva, And Pupa, And Notes On Adult Intraspecific Elytral Pattern Variation, Juanita A. Forrester, Natalia J. Vandenberg, Joseph V. Mchugh

USDA Systematic Entomology Laboratory

Anovia circumclusa (Gorham), a neotropical lady beetle, recently was recorded in North America for the first time. Previously, only the adult form of this beneficial predator had been described. This paper provides a redescription of the adult and the first descriptions of the egg, larva, and pupa. Diagnostic characters for the genus and species are given, and intraspecific color variation in Anovia adults is discussed.


Redescription And Immature Stages Of Promalactis Suzukiella (Matsumura) (Gelechioidea: Oecophoridae), A New Introduction Into The United States, David Adamski, Gary F. Hevel, Alan Pultyniewicz Jan 2009

Redescription And Immature Stages Of Promalactis Suzukiella (Matsumura) (Gelechioidea: Oecophoridae), A New Introduction Into The United States, David Adamski, Gary F. Hevel, Alan Pultyniewicz

USDA Systematic Entomology Laboratory

Promalactis suzukiella (Matsumura) was discovered independently several times over the past 5 years throughout the northeastern United States by private collectors and biophotographers. These discoveries represent the first records of this species in the United States and validate its approximate distributional range. Color photographs and a redescription of the adult, including the male and female genitalia, are provided. The larva and pupa of Promalactis are described in detail for the first time, with scanning electron micrographs and chaetotaxal maps. A lectotype for Borkhausenia suzukiella Matsumura, 1931, is designated herein. The importance of ‘‘backyard collecting’’ and amateur biophotography is emphasized, and …


A Revision Of Anacharoides Cameron, 1904 (Hymenoptera, Figitidae) With A Description Of A New Species, Matthew L. Buffington, Simon Van Noort Jan 2009

A Revision Of Anacharoides Cameron, 1904 (Hymenoptera, Figitidae) With A Description Of A New Species, Matthew L. Buffington, Simon Van Noort

USDA Systematic Entomology Laboratory

Anacharoides Cameron is revised and six species are recognized: A. nicknacki Buffington & van Noort, sp. n., A. pallida Quinlan, A. paragi Benoit, A. quadrus Quinlan, A. striaticeps Cameron and A. stygius Benoit. A key to species is provided. Anacharoides striaticeps was determined to be a variable species, and consequently a number of names have been proposed for this species. Here we clarify the identity of A. striaticeps and provide evidence for the following new synonymies of A. striaticeps: Anacharoides elongaticornis Benoit, syn. n., Anacharoides eurytergis Benoit, syn. n., Anacharoides decellius Quinlan, syn. n., Anacharoides sanitas …


Behavioral Explanations Underlying The Lack Of Trap Effectiveness For Small-Scale Management Of Japanese Beetles (Coleoptera: Scarabaeidae), Paul V. Switzer, Patrick C. Enstrom, Carissa A. Schoenick Jan 2009

Behavioral Explanations Underlying The Lack Of Trap Effectiveness For Small-Scale Management Of Japanese Beetles (Coleoptera: Scarabaeidae), Paul V. Switzer, Patrick C. Enstrom, Carissa A. Schoenick

Faculty Research & Creative Activity

Traps containing a combination floral and synthetic pheromone lure are used to monitor and manage Japanese beetles, Popillia japonica Newman (Coleoptera: Scarabaeidae). One key factor limiting trap effectiveness for beetle control is the "trap spillover" phenomenon, in which the trap attracts beetles without capturing them, resulting in increased damage to surrounding host plants. We investigated the mechanisms underlying trap spillover by conducting two studies in a soybean field in east central Illinois. In the first study, we set up trap stations for 1 d and compared the sex, size, and egg load (for females) of beetles caught in the traps …


Behavioral Explanations Underlying The Lack Of Trap Effectiveness For Small-Scale Management Of Japanese Beetles (Coleoptera: Scarabaeidae), Paul Switzer, Patrick Enstrom, Carissa Schoenick Jan 2009

Behavioral Explanations Underlying The Lack Of Trap Effectiveness For Small-Scale Management Of Japanese Beetles (Coleoptera: Scarabaeidae), Paul Switzer, Patrick Enstrom, Carissa Schoenick

Faculty Research & Creative Activity

Traps containing a combination floral and synthetic pheromone lure are used to monitor and manage Japanese beetles, Popillia japonica Newman (Coleoptera: Scarabaeidae). One key factor limiting trap effectiveness for beetle control is the "trap spillover" phenomenon, in which the trap attracts beetles without capturing them, resulting in increased damage to surrounding host plants. We investigated the mechanisms underlying trap spillover by conducting two studies in a soybean field in east central Illinois. In the first study, we set up trap stations for 1 d and compared the sex, size, and egg load (for females) of beetles caught in the traps …


Backyard "Bug" Collecting Results In 6 New State Records For Arkansas, U.S.A., Stephen W. Chordas Iii, J. Kremers Jan 2009

Backyard "Bug" Collecting Results In 6 New State Records For Arkansas, U.S.A., Stephen W. Chordas Iii, J. Kremers

Journal of the Arkansas Academy of Science

The aquatic Hemiptera of Arkansas are fairly well documented (see Chordas et al. 2005), but the terrestrial bugs are less well known. Recent projects and publications have begun to address this deficiency. Including the 6 reported herein, there have been 64 Hemiptera species newly recorded for Arkansas between 2005 and 2009 (Chordas et al. 2005, Chordas and Kovarik 2008a, Chordas and Kovarik 2008b). The second author is an invertebrate enthusiast who maintains a large personal collection. The content of this collection is primarily an accumulation of invertebrates captured on or around his property in Clarksville (Johnson County) Arkansas (Figure 1). …


Gamebird 2006: Quail Vi And Perdix Xii, Sandra B. Cederbaum, Brant C. Faircloth, Theron M. Terhune, Jeffrey J. Thompson, John P. Carroll Jan 2009

Gamebird 2006: Quail Vi And Perdix Xii, Sandra B. Cederbaum, Brant C. Faircloth, Theron M. Terhune, Jeffrey J. Thompson, John P. Carroll

School of Natural Resources: Faculty Publications

Foreword v

Acknowledgements vi

Editorial Panel vii

Sponsors x

Invited Manuscripts 2

Integrating Management, Research, and Monitoring: Balancing the 3-Legged Stool. Michael J. Conroy & James T. Peterson . 2

Management of Southern African Gamebirds: Opportunities and Threats. Tim Crowe . 11

Taking the Northern Bobwhite Conservation Initiative to the Next Level. Donald F. McKenzie . 16

Restoring a Gray Partridge (Perdix perdix) Population and the Future of Predation Control. G.R. Potts . 24

Abundance Estimation 27

The GWCT Partridge Count Scheme: A Volunteer-Based Monitoring and Conservation Promotion Scheme. Julie Ewald, Nevile Kingdon, & Hugues Santin-Janin . 27

Refining the …


Contents, Discovery Editors Jan 2009

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Nebline, January 2009 Jan 2009

Nebline, January 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Creating a Strong Family: Strong Families Have Six Common Characteristics
Ways to Spend Time With Your Family in January
Private Pesticide Applicator Certification Opportunities
Soybean Cyst Nematode Spreading in Nebraska: Free Soil Sampling Kits at Extension Offices
Mystery “Bites”: Unidentifiable Skin Problems Usually Have Non-Insect Causes
Raccoons in the City
2009 Wall Calendar
Beginning Beekeeping 2-Day Workshop
2009 All-America Rose Selections
Shopping for Plants and Seeds
Garden Guide: Things to Do This Month
Birds Need Water In Winter
Attract Winter Birds With Feeders
Top 10 Myths of Entrepreneurship
Winter Houseplant Care
Wishing You a Healthy H-A-P-P-Y N-E-W Y-E-A-R!
$tretch Your …


Hexapod Herald - Vol. 21, No. 1, January 2009 Jan 2009

Hexapod Herald - Vol. 21, No. 1, January 2009

Hexapod Herald and Other Entomology Department Newsletters

Contents:
Congratulations
Welcome
Grants
Publications
Student News
Condolences
Faculty News
From the Office
Travel


Wolf Spiders Of The Pacific Region: The Genus Zoica (Araneae, Lycosidae), Volker W. Framenau, James W. Berry, Joseph A. Beatty Jan 2009

Wolf Spiders Of The Pacific Region: The Genus Zoica (Araneae, Lycosidae), Volker W. Framenau, James W. Berry, Joseph A. Beatty

Scholarship and Professional Work - LAS

The wolf spider genus Zoica Simon 1898 is currently known only from the Indo-Australasian region, including India in the west to northern Western Australia and Papua New Guinea in the east. Here we extend the known distribution of the genus into the Pacific region by describing two new species, Z. carolinensis new species from the Caroline Islands, Federated States of Micronesia, and Z. pacifica new species from the Republic of the Marshall Islands.


Tthe Immature Stages And Natural History Of Antirrhea Adoptiva Porphyrosticta (Watkins, 1928) In Eastern Ecuador (Lepidoptera, Nymphalidae, Morphinae), Harold F. Greeney, Philip J. Devries, Carla M. Penz, Rafael B. Granizo-T, Heidi Connahs, John O. Stireman Iii, Thomas R. Walla, Lee A. Dyer Jan 2009

Tthe Immature Stages And Natural History Of Antirrhea Adoptiva Porphyrosticta (Watkins, 1928) In Eastern Ecuador (Lepidoptera, Nymphalidae, Morphinae), Harold F. Greeney, Philip J. Devries, Carla M. Penz, Rafael B. Granizo-T, Heidi Connahs, John O. Stireman Iii, Thomas R. Walla, Lee A. Dyer

Biological Sciences Faculty Publications

Here we describe the immature stages and ecological associations of Antirrhea adoptiva porphyrosticta Watkins, 1928 (Lepidoptera:Nymphalidae:Morphinae). The cloud forest bamboo, Chusquea scandens Kunth (Bambusoidea: Poaceae), serves as the larval food plant for this butterfly in eastern Ecuador, the first hostplant record for Antirrhea outside the family Arecaceae. The larvae of A. adoptiva porphyrosticta are superficially similar to those of other Antirrhea species. We also provide observations on adult and larval behavior. Caterpillars of this butterfly species are parasitized by tachinid flies, as well as by Ichneumonidae and a newly described braconid wasp.


Biology And Management Of The Bed Bug, Cimex Lectularius L. (Heteroptera: Cimicidae), Alvaro Romero Jan 2009

Biology And Management Of The Bed Bug, Cimex Lectularius L. (Heteroptera: Cimicidae), Alvaro Romero

University of Kentucky Doctoral Dissertations

The near absence of bed bugs from human dwellings for fifty or more years has left us with limited knowledge of its biology and few answers to eliminate populations. I explored a diverse set of objectives to answer key questions concerning bed bug biology and control. Major objectives were studies of circadian rhythmicity, pyrethroid resistance, sublethal effects of insecticides, synergism of pyrethroids, and evaluation of a pyrrole insecticides, chlorfenapyr. Additional studies included persistence of Borrelia in bed bugs after ingestion, and aggregation factors from feces.

In the absence of host stimuli, insects were much more active in the dark than …


Natural Distribution Of Parasitoids Of Larvae Of The Fall Armyworm, Spodoptera Frugiperda, In Argentina, M Gabriela Murua, Jamie Molina Ochoa, Patricio Fidalgo Jan 2009

Natural Distribution Of Parasitoids Of Larvae Of The Fall Armyworm, Spodoptera Frugiperda, In Argentina, M Gabriela Murua, Jamie Molina Ochoa, Patricio Fidalgo

Department of Entomology: Faculty Publications

Abstract To develop a better understanding of the natural distribution of the fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), and to update the knowledge of the incidence of its complex of parasitoids. S. frugiperda, samplings in whorl-stage corn were carried out in provinces of Argentina from 1999 to 2003. S. frugiperda larvae were collected from corn in localities of the provinces of Tucumán, Salta, Jujuy, Santiago del Estero, La Rioja, Córdoba, San Luis, Chaco and Misiones. In each locality 30 corn plants were sampled and only larvae located in those plants were collected. The parasitoids that emerged from S. …


Effects Of Temperature On The Metabolic Rates Of Insecticide Resistant And Susceptible German Cockroaches, Blattella Germanica (L.) (Dictyoptera: Blattellidae), B. N. Dingha, A. G. Appel, J. T. Vogt Jan 2009

Effects Of Temperature On The Metabolic Rates Of Insecticide Resistant And Susceptible German Cockroaches, Blattella Germanica (L.) (Dictyoptera: Blattellidae), B. N. Dingha, A. G. Appel, J. T. Vogt

Midsouth Entomologist

We examined the standard metabolic rates of pyrethroid resistant and susceptible German cockroaches, B. germanica. Measurements of CO2 production and O2 consumptions were obtained at 5 to 40 °C at 5 °C intervals using closed-system respirometry. Overall VO2 (ml g-1 h-1) was not significantly different among strains but different strains reacted differently to increasing temperature. Mean cockroach body mass differed significantly among strains and VO2 (ml g-1 h-1) scaled with temperature and mass in all strains. We used data at 25 °C to examine the effect of mass on the rate of oxygen consumption. Mass specific VO2 (ml g--1 h-1) …


Unknown Substance Found On Spotted Cucumber Beetle Larva (Diabrotica Undecimpunctata Howardi Barber), D. E. Fleming Jan 2009

Unknown Substance Found On Spotted Cucumber Beetle Larva (Diabrotica Undecimpunctata Howardi Barber), D. E. Fleming

Midsouth Entomologist

An unknown substance (Figure 1) was discovered on the cuticle of a one-day-old spotted cucumber beetle larvae (Diabrotica undecimpunctata howardi) by means of scanning electron microscopy.


The Regulatory Corner: Citrus Not So Green With Citrus Greening, H. Fulton Jan 2009

The Regulatory Corner: Citrus Not So Green With Citrus Greening, H. Fulton

Midsouth Entomologist

No abstract provided.


Gordonius Rhinocerillus, A New Genus And Species Of Colombian Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae), Paul E. Skelley, Marco Dellacasa, Giovanni Dellacasa Jan 2009

Gordonius Rhinocerillus, A New Genus And Species Of Colombian Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae), Paul E. Skelley, Marco Dellacasa, Giovanni Dellacasa

Insecta Mundi

Gordonius rhinocerillus, a new genus and new species of Colombian Aphodiini is described and figured. It is the only known member of New World Aphodiinae where the male has a prominent horn on the head.