Entomology Commons^™

Physiological Responses Of Resistant And Susceptible Buffalograsses To Blissus Occiduus (Hemiptera: Blissidae) Feeding, Tiffany Heng-Moss, Tulio Macedo, Lisa Franzen-Castle, Frederick P. Baxendale, Leon G. Higley, Gautam Sarath

Department of Entomology: Faculty Publications

The impact of Blissus occiduus Barber feeding on resistant (‘Prestige’) and susceptible (‘378’) buffalograsses, Buchloe dactyloides (Nuttall) Engelmann, was evaluated through measurement of carbon exchange rate, light and carbon assimilation (A-C) curves, chlorophyll a fluorescence, and nonstructural carbohydrates. No significant differences in carbon exchange rates were observed between infested and control plants for 378 at 5 and 10 d after infestation; however, at 20 d after chinch bug introduction, significant differences in carbon exchange rates between infested and control 378 plants were detected. Carbon exchange rates were similar between infested and control Prestige plants at 5, 10, and 20 d …

Evaluation Of Cool- And Warm-Season Grasses For Resistance To Multiple Chinch Bug (Hemiptera: Blissidae) Species, Wyatt G. Anderson, Tiffany Heng-Moss, Frederick P. Baxendale

Department of Entomology: Faculty Publications

Chinch bugs are common pests of many agronomic and horticulturally important crops and turfgrasses. The extensive overlap of plant hosts and geographic distribution of Blissus leucopterus leucopterus (Say), Blissus leucopterus hirtus Montandon, Blissus insularis Barber, and Blissus occiduus Barber underscores the importance of identifying resistant germplasm. Cool- and warm-season turfgrasses and sorghum, Sorghum bicolor (L.) Moench, were evaluated for resistance to chinch bugs in the Blissus complex, and the presence of multiple resistance was documented. Greenhouse studies established that B. occiduus-resistant (‘Prestige’, formerly NE91-118) and -susceptible (‘378’) buffalograsses, , Buchloe dactyloides (Nuttall) Engelmann, were susceptible to all other chinch …

Nebline, February 2006

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Making Nutrition Education a Hands-On Experience for Youth
PUDDING CUP Recipe
PEANUT BUTTER BITES Recipe
YUMMY BUG Recipe
YOGURT PARFAIT Recipe
Private Pesticide Applicator Certification
Dormant Spray for Alfalfa Weeds
Commercial Pesticide Applicator Training
Crop Protection Clinic, Jan. 23
Commercial Pesticide Applicator Training
Boost Profits by at Least $20/ Acre Workshop, Feb. 15
Chemigation Certification Training
Fertilizing Crop Land with Biosolids Workshop, March 9
Dealing with Winter Flies
Beginning Beekeeping 2-Day Workshop
Be My Valentine? Consider these mating curiosities from the insect world...
Amazing Facts... About Honey and Honey bees
Household Hints: Rise and Shine with Clean Bed Linens
President’s …

Woy '06: Spicebush Provides A Salad Bar To Some Caterpillars, W. John Hayden

Biology Faculty Publications

While many wildflower enthusiasts appreciate spicebush (Lindera benzoin), the 2006 Virginia Wildflower of the Year, for its subtle beauty, plant ecologists have found this humble shrub to be a fruitful subject for scientific inquiry. The notes that follow relay just a few of the interesting nuggets that can be gleaned from a cursory study of the scientific literature about this plant.

Reproductive Isolation And Differentiation Between Five Populations Of Cotesia Plutellae (Hymenoptera: Braconidae), Parasitoid Of Plutella Xylostella (Lepidoptera: Plutellidae), Claudia Rincon, Dominique Bordat, Bernhard Löhr, Stéphane Dupas

All Peer-Reviewed Publications

Many taxa used in biological control may be composed of several population units reproductively isolated to various degrees. Yet, the introductions of non-compatible populations may result in a depression of intended biological control. Cotesia plutellae has been widely used as a biological control agent of the diamondback moth, Plutella xylostella. However, not all introductions and augmentations were successful. With the aim to develop markers of compatibility for this species, we studied the reproductive compatibility between five populations (South Africa, Benin, Martinique, Reunion, and Taiwan) and analyzed its statistical relationship with three morphological characters (antennae and body length and antennae/body ratio), …

Interspecific Competition Between Xanthopimpla Stemmator Thunberg And Dentichasmias Busseolae Heinrich (Hymenoptera: Ichneumonidae), Pupal Parasitoids Attacking Chilo Partellus (Lepidoptera: Crambidae) In East Africa, Benjamin K. Muli, Fritz Schulthess, Rosebella O. Maranga, Helen L. Kutima, Nanqing Jiang

All Peer-Reviewed Publications

Interspecific competition between Xanthopimpla stemmator and Dentichasmias busseolae was studied using pupae of the invasive crambid stemborer Chilo partellus as the host. While X. stemmator is an old association, D. busseolae formed a relatively new association with C. partellus in East Africa. Two different time intervals between parasitism (0 and 48 h) and two parasitoid sequences [i.e., X. stemmator before D. busseolae (Xs-Db) and D. busseolae before X. stemmator (Db-Xs)] were chosen. In addition, the parasitoids' performance on pupae in maize stems and ears was assessed. For both X. stemmator and D. busseolae, there was no difference in foraging time …

Stability And Persistence Of Aldrin And Methyl-Parathion Resistance In Western Corn Rootworm Populations (Coleoptera: Chrysomelidae), Srinivas Parimi, Lance J. Meinke, B. Wade French, Laurence D. Chandler, Blair D. Siegfried

Department of Entomology: Faculty Publications

The susceptibilities of laboratory and field-collected western corn rootworm populations (Diabrotica virgifera virgifera LeConte) to methyl-parathion and aldrin were estimated by topical application of insecticide during 2002 to determine the stability of resistance in the absence of selective pressures. Most of the laboratory-reared and field-collected populations were significantly resistant to both insecticides. Average LD ₅₀ values of laboratory and field-collected populations were 19- and 13-fold greater than the susceptible population in methyl-parathion bioassays, respectively, and 204- and 125-fold greater in the aldrin bioassays, respectively. The presence of aldrin and methyl-parathion resistance in field-collected populations strongly suggests that both resistance …

Rediscovery And Redescription Of The Remarkable Phoenicus Sanguinipennis Lacordaire (Coleoptera: Cerambycidae: Trachyderini) From The Dominican Republic, Steven Lingafelter, Eugenio Nearns

USDA Systematic Entomology Laboratory

Phoenicus sanguinipennis was described by Lacordaire in 1869 based on one male specimen of unknown origin. We rediscovered this species 135 years later in the Punta Cana region in La Altagracia Province of eastern Dominican Republic (18°30.477’N, 68°22.499’W). Twenty-seven specimens were collected at lights and on dead Maclura tinctoria (Linnaeus) D. Don ex Steudel (Moraceae). We provide a thorough description of the species and the previously unknown female, and a discussion of the previous and current knowledge of the species.

County-Level Surveillance Of White-Tailed Deer Infestation By Ixodes Scapularis And Dermacentor Albipictus (Acari: Ixodidae) Along The Illinois River, M. Roberto Cortinas, Uriel Kitron

Department of Entomology: Faculty Publications

From 1998 to 2003, 4,935 hunter-killed deer in northern and central Illinois were examined for ticks; 4,066 blacklegged ticks, Ixodes scapularis Say, and 6,530 winter ticks, Dermacentor albipictus (Packard) (Acari: Ixodidae), were collected. I. scapularis was the predominant tick species in the northern portion of the study area, with a decreasing north-to-south prevalence gradient. In contrast, D. albipictus was more common in the south with a decreasing south-to-north prevalence gradient. Compared with previous studies, the geographic range for both species expanded into the central portion of the Illinois River. Prevalence and intensity of both tick species were greater on bucks, …

Relative Abundance Of Exotic And Native Coccinellidae (Coleoptera) In Southeast Nebraska Alfalfa, James C. Kriz, Stephen D. Danielson, James R. Brandle, Erin E. Blankenship

Department of Entomology: Faculty Publications

The seven-spotted lady beetle, Coccinella septempunctata L., and the multicolored Asian lady beetle, Harmonia axyridis Pallas, are exotic Coccinellidae (Coleoptera) that are regularly encountered in southeastern Nebraska. Harmonia axyridis, a native of eastern Asia, was first reported in an established population near Abita Springs, St. Tammay Parish, Louisiana, in 1988. It was hypothesized that the introduction was accidental through commerce in Louisiana and not from introduction for biological control. Coccinella septempunctata, a native of Eurasia, was introduced for biological control several times and at a variety of locations across North America during the last century. As is the case …

Spatial Learning In Dragonflies, Perri K. Eason, Paul Switzer

Faculty Research & Creative Activity

No abstract provided.

Spatial Learning In Dragonflies, Perri Eason, Paul Switzer

Faculty Research & Creative Activity

No abstract provided.

Biomass Dynamics Of Tipula (Insecta: Diptera) In Forested Streams Of The Interior Highlands, Arkansas, Samuel B. Mccord, Alan D. Christian, Richard S. Grippo

Journal of the Arkansas Academy of Science

Abundance patterns of aquatic macroinvertebrates that utilize coarse particulate organic matter as a food source are important indicators of non--point source pollution associated with silviculture activities. This group, referred to as shredders, typically decreases in abundance as its food source—primarily leaves—is removed from the ecosystem. We tested whether larval biomass of the crane fly Tipula, a common member of the group, was an effective estimator of shredder abundance. Additionally, we used regression analysis to test whether the length to dry mass relationship of Tipula differed among geographic regions, between seasons, and between years. Results did not indicate significant differences in …

Ants Said To Use ‘Odometers’, Aldemaro Romero Jr., Tanja Mckay

Publications and Research

No abstract provided.

Ants Can Jump Farther, Faster Than Others, Aldemaro Romero Jr., Tanja Mckay

Publications and Research

No abstract provided.

Characteristics Of Bark Beetle Infestations In East Texas During A Period Of Low Southern Pine Beetle Activity, David L. Kulhavy

Faculty Publications

The species composition nf southern pine bark beetle infestations was examined in east Texas in 1979, A total of 545 infestations were located in thirteen 18,000 acresurvey blocks. Ips spp, were observed in 98.9 of ihe infestations, with black turpentine beetles, Dendrnclonus lerebrans Olivier, present in 42.4 % ofthe infestations. Southern pine beetles, D. fronlulis Zimmemiann. were only observed in 11 infestations (2.0%), and were less abundant than other bark beetle species in these infestations. Almost 80% of the infestations were associated with a recognizable pre-disposing factor (lightning, fire, etc.). Most Infestations were small (less than six trees), though infestations …

Thermal Conditioning Of Fifth-Instar Cydia Pomonella (Lepidoptera: Tortricidae) Affects Hsp70 Accumulation And Insect Mortality, X. Yin, S. Wang, J. Tang, J. D. Hansen, S. Lurie

Entomology Papers from Other Sources

Levels of HSP70 protein of fifth-instar codling moth [Cydia pomonella (L.) (Lepidoptera: Tortricidae)] are determined after conditioning at 35 °C for different times and also after recovery at 22 °C. Protein samples from larvae conditioned for different times are separated by sodium dodecyl sulphate-polyacrylamide gel electrophoresis electrophoresis. Sub-lethal thermal conditioning at 35 °C for 40 min, 2, 6 and 18 h induces new protein bands in the extracts from treated codling moth larvae. Immunodetection with an antibody to a heat-inducible HSP70 indicates a stronger reaction after 35 °C for 2, 6 and 18 h than after 35 °C for …

Nebline, January 2006

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

30 MyPyramid Steps to a Healthier You
Guide to Growing Amaryllis
Winter Care of Houseplants
Managing Dust Mites
Urban Pest Management Conference
You Caught Your Mouse — How About Cleanup?
Beginning Beekeeping 2-Day Workshop
Private Pesticide Applicator Certification
Is Burning Wood an Economically Feasible Option?
Crop Protection Clinic, Jan. 23
Acreage-Tough Plants
The Physical Resources of the Acreage—Part 1
Upcoming Acreage Insights Clinics
Meet the Grain Group
Mock Frozen “Peach” Daiquiri Recipe
Sit Less, Move More!
Low-Cost Indoor Avenues to Fitness
Home Energy Checkup
Household Hints: Cleaning silver by electrolysis
President’s Notes — Janet’s Jargon
FCE News & Events
Rokeby …

Phylogenetic Analysis Of The Scarab Family Hybosoridae And Monographic Revision Of The New World Subfamily Anaidinae (Coleoptera: Scarabaeoidea), Federico C. Ocampo

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

1. Introduction to the Scarab Family Hybosoridae (Coleoptera: Scarabaeoidea). Federico C. Ocampo.

2. Molecular Phylogenetics and Systematic Placement of the Family Hybosoridae (Coleoptera: Scarabaeoidea). Federico C. Ocampo and David C. Hawks.

3. Phylogenetic Analysis of the Subfamily Anaidinae (Coleoptera: Scarabaeoidea). Federico C. Ocampo.

4. Catalog of the Subfamilies Anaidinae, Ceratocanthinae, Hybosorinae, Liparochrinae, and Pachyplectrinae (Scarabaeoidea: Hybosoridae). Federico C. Ocampo and Alberto Ballerio.

Abstract. Phylogenetic analyses and taxonomic revisions were conducted on the scarabaeoid family Hybosoridae. Two new subfamilies of Hybosoridae are described, Liparochrinae and Pachyplectrinae. Phylogenetic analysis and a systematic revision of the New World subfamily Anaidinae are provided. The …

Tapeworms Of Elasmobranchs (Part Ii) A Monograph On The Diphyllidea (Platyhelminthes, Cestoda), Gaines Albert Tyler Ii

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

The main objective of this monograph was a synthesis of the available knowledge on the diversity, systematics, host associations, and biogeography of the Diphyllidea. A thorough review of the literature resulted in the transfer of Diagonobothrium into Diphyllidea as a genus inquirendum. The genus Yogeshwaria was also transferred to Diphyllidea as a synonym of Echinobothrium. Its only species, E. nagabhushani n. comb., is considered to be a species inquirenda. New collections resulted in the description of a new species of Echinobothrium. Type and/or voucher specimens for 32 of 36 valid diphyllidean species (including the new species) …

Genetic Analysis Of Resistance To European Corn Borer (Ostrinia Nubllalls Hub. Lepidoptera:Crambidae) Damage In Eight Maize Germplasm, Cengis Ikten, John E. Foster

Department of Entomology: Faculty Publications

The inheritance of resistance to Oslrinia nubilalis (ECB) damage in eight breeding maize lines was studied by Griffing's diallel analysis (Griffing 1956) under two water regimes. One hundred fifty neonate larvae of second generation of ECB were infested around ear node of maize germplasm and approximately two months later, the potentials of the germplasm were determined by measuring stalk and shank tunneling damage in plants. General combining ability (GCA) was more important than specific combining ability (SCA) in determining resistance to both stalk and shank tunneling. Although mean squares for GCA accounted for 76.1% of the variation for stalk tunneling …

Cowpea Weevil Flights To A Point Source Of Female Sex Pheromone: Analyses Of Flight Tracks At Three Wind Speeds, L. P. S. Kuenen, H. C. Rowe

Entomology Papers from Other Sources

Two-day-old male cowpea weevils, Callosobruchus maculatus, fly upwind to a point source of female sex pheromone at three wind speeds. All beetles initiating flight along the pheromone plume make contact with the pheromone source. Analysis of digitized flight tracks indicates that C. maculatus males respond similarly to moths tested at several wind speeds. Beetles’ mean net upwind speeds and speeds along their track are similar (P > 0.05) across wind speeds, whereas airspeeds increase (P < 0.01) with increasing wind speed. Beetles adjust their course angles to fly more directly upwind in higher wind speeds, whereas track angles are almost identical at each wind speed. The zigzag flight paths are generally narrow compared with most moth flight tracks and interturn distances are similar (P > 0.05) at the wind speeds employed. The frequency of these counterturns across the wind line is almost constant regardless of wind speed, and there is …

Olfactory Cues And Nest Recognition In The Solitary Bee Osmia Lignaria, Christelle Guedot, Theresa Pitts-Singer, James Buckner, Jordi Bosch, William Kemp

Entomology Papers from Other Sources

The use of olfactory cues for nest recognition by the solitary bee Osmia lignaria is studied in a greenhouse environment. Glass tubes are provided as nesting cavities to allow the in-nest behavior of bees to be observed. In addition, each glass tube is cut into three sections for experimental manipulation and for subsequent chemical analysis. Nesting females drag their abdomen along the tube before exiting, spiral inside the tube, and sometimes deposit fluid droplets from the tip of the abdomen. For the manipulation, the outer section, the middle section, or both sections are removed and replaced with similar clean glass …

Letter From The Dean, Gregory J. Weidemann

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

No abstract provided.

Effects Of Insect Herbivory On Physiological And Biochemical (Oxidative Enzyme) Responses Of The Halophyte Atriplex Subspicata (Chenopodiaceae), P. D. Nabity, Tiffany Heng-Moss, Leon G. Higley

Department of Entomology: Faculty Publications

Physiological responses of the halophyte, Atriplex subspicata Nutt. Rydb., to defoliation injury were evaluated through a series of experiments measuring plant gas exchange, fluorometry, and enzyme activity. Leaves exposed to simulated insect herbivory exhibited reductions in photosynthesis, stomatal conductance, and transpiration. Carboxylation efficiency, maximum assimilation, and CO₂ compensation were also negatively associated with mechanical leaf injury. Insect injury by a herbivore generalist, Spilosoma virginica, also reduced photosynthesis and carboxylation efficiency within the saturated spectrum of A/C_i response curves. Initially, declines in photosynthesis occurred because of transient stomatal limitations. However, after time, mesophyll limitations impaired photosynthesis and the …

Spatiotemporal Patterns Of Host-Seeking Ixodes Scapularis Nymphs (Acari: Ixodidae) In The United States, M. A. Diuk-Wasser, A. G. Gatewood, M. Roberto Cortinas, S. Yaremych-Hamer, J. Tsao, Uriel Kitron, G. Hickling, J. S. Brownstein, E. Walker, J. Piesman, D. Fish

Department of Entomology: Faculty Publications

The risk of Lyme disease for humans in the eastern United States is dependent on the density of host-seeking Ixodes scapularis Say nymphal stage ticks infected with Borrelia burgdorferi. Although many local and regional studies have estimated Lyme disease risk using these parameters, this is the first large-scale study using a standardized methodology. Density of host-seeking I. scapularis nymphs was measured by drag sampling of closed canopy deciduous forest habitats in 95 locations spaced among 2° quadrants covering the entire United States east of the 100th meridian. Sampling was done in five standardized transects at each site and repeated …

Key To Selected Pyraloidea (Lepidoptera) Larvae Intercepted At U.S. Ports Of Entry: Revision Of Pyraloidea In Keys To Some Frequently Intercepted Lepidopterous Larvae By Weisman 1986, M. Alma Solis

USDA Systematic Entomology Laboratory

A key to frequently intercepted lepidopterous larvae, designed for the United States Department of Agriculture, Animal and Plant Health Inspection Service (USDA, APHIS) identifiers at US ports, was last revised in 1986. Since then many changes have occurred in the classification, nomenclature, and the nature of commodities being imported into the US. In this revision of the section on Pyraloidea, species recently intercepted are included, the most recent generic combinations are used, and families and subfamilies are now included in the key. Distributions are updated, stating if the species occurs in Hawaii or restricted areas of the continental United States. …

Discovery Of A New Species Of Smicronyx Schoenherr (Coleoptera: Curculionidae), Donald M. Anderson, Boris A. Korotyaev, Steven W. Lingafelter

USDA Systematic Entomology Laboratory

Smicronyx obrieni Anderson, Korotyaev, and Lingafelter, a new species associated with ragweed [Ambrosia grayi (A. Nelson) Shinners], was discovered in Krasnodar (Russia) and Texas (United States), and is described.

Review Of Lady Beetles In The Cycloneda Germainii Species Complex (Coleoptera; Coccinellidae: Coccinellinae: Coccinellini) With Descriptions Of New And Unusual Species From Chile And Surrounding Countries, Guillermo González, Natalia J. Vandenberg

USDA Systematic Entomology Laboratory

A complex of lady beetle species including Cycloneda germainii (Crotch) is reviewed and seven valid species recognized, including C. germainii, C. eryngii (Mulsant), C. sicardi (Brèthes), C. boliviana (Mulsant), and three new species, C. lacrimosa González & Vandenberg, n. sp., C. disconsolata Vandenberg & González, n. sp., and C. patagonica González & Vandenberg, n. sp. Cycloneda duplaris (Berg) and Arrowella albilacus Brèthes, previously synonymized with C. areata Mulsant, are placed as new synonyms of C. germainii; C. boliviana is removed from synonymy with C. areata and reinstated as a full species; C. sicardi (Brèthes) is recognized as the valid replacement …

Taygete Sphecophila (Meyrick) (Lepidoptera; Autostichidae): Redescription Of The Adult, Description Of The Larva And Pupa, And Impact On Polistes Wasps (Hymenoptera; Vespidae) Nests In The Galapagos Islands, Bernard Landry, David Adamski, Patrick Schmitz, Christine Parent, Lazaro Roque-Albelo

USDA Systematic Entomology Laboratory

Taygete sphecophila (Meyrick) (Lepidoptera; Autostichidae) is reported on the Galapagos Islands. The morphology of the moth, larva, and pupa are described and illustrated in details. Part of the mitochondrial DNA was sequenced and made available on GenBank. The incidence of predation by T. sphecophila on nests of Polistes versicolor Olivier (Hymenoptera; Vespidae) was measured in four different vegetation zones of Floreana and Santa Cruz Islands. The percentages of infested nests varied greatly (from 13.9% to 66.7% on Floreana and from 20.0 to 100% on Santa Cruz) and no clear ecological trends could be ascertained.