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Fifty Years Of Cave Arthropod Sampling: Techniques And Best Practices, J. Judson Wynne, Francis G. Howarth, Stefan Sommer, Brett G. Dickson 2019 Northern Arizona University

Fifty Years Of Cave Arthropod Sampling: Techniques And Best Practices, J. Judson Wynne, Francis G. Howarth, Stefan Sommer, Brett G. Dickson

International Journal of Speleology

Ever-increasing human pressures on cave biodiversity have amplified the need for systematic, repeatable, and intensive surveys of cave-dwelling arthropods to formulate evidence-based management decisions. We examined 110 papers (from 1967 to 2018) to: (i) understand how cave-dwelling invertebrates have been sampled; (ii) provide a summary of techniques most commonly applied and appropriateness of these techniques, and; (iii) make recommendations for sampling design improvement. Of the studies reviewed, over half (56) were biological inventories, 43 ecologically focused, seven were techniques papers, and four were conservation studies. Nearly one-half (48) of the papers applied systematic techniques. Few papers (24) provided enough information ...


Interacting Stressors Matter: Diet Quality And Virus Infection In Honeybee Health, Adam G. Dolezal, Jimena Carrillo-Tripp, Timothy M. Judd, W. Allen Miller, Bryony C. Bonning, Amy L. Toth 2019 University of Illinois at Urbana-Champaign

Interacting Stressors Matter: Diet Quality And Virus Infection In Honeybee Health, Adam G. Dolezal, Jimena Carrillo-Tripp, Timothy M. Judd, W. Allen Miller, Bryony C. Bonning, Amy L. Toth

Ecology, Evolution and Organismal Biology Publications

Honeybee population declines have been linked to multiple stressors, including reduced diet diversity and increased exposure to understudied viral pathogens. Despite interest in these factors, few experimental studies have explored the interaction between diet diversity and viral infection in honeybees. Here, we used a mixture of laboratory cage and small semi-field nucleus hive experiments to determine how these factors interact. In laboratory experiments, we found that high-quality diets (polyfloral pollen and high-quality single-source pollen) have the potential to reduce mortality in the face of infection with Israeli acute paralysis virus (IAPV). There was a significant interaction between diet and virus ...


Hexapod Herald - Vol. 31, No. 1, February 2019, 2019 University of Nebraska - Lincoln

Hexapod Herald - Vol. 31, No. 1, February 2019

Hexapod Herald & Other Entomology Department Newsletters

Welcome -- Congratulations -- Note from John Ruberson -- Grants -- Faculty News -- Student News -- Publications -- Blast from the Past -- Brewer Appreciation Reception -- Intro Beekeeping Class-Year 1 -- Condolences -- Retirement Reception for Kalisch and Roselle


Rnai Targeting Of Rootworm Troponin I Transcripts Confers Root Protection In Maize, Elane Fishilevich, Andrew J. Bowling, Meghan L. F. Frey, Po-Hao Wang, Wendy Lo, Murugesan Rangasamy, Sarah E. Worden, Heather E. Pence, Premchand Gandra, Shannon L. Whitlock, Greg Schulenberg, Eileen Knorr, Linda Tenbusch, Jamie R. Lutz, Stephen Novak, Ronda L. Hamm, Karl D. Schnelle, Andreas Vilcinskas, Kenneth E. Narva 2019 University of Nebraska-Lincoln

Rnai Targeting Of Rootworm Troponin I Transcripts Confers Root Protection In Maize, Elane Fishilevich, Andrew J. Bowling, Meghan L. F. Frey, Po-Hao Wang, Wendy Lo, Murugesan Rangasamy, Sarah E. Worden, Heather E. Pence, Premchand Gandra, Shannon L. Whitlock, Greg Schulenberg, Eileen Knorr, Linda Tenbusch, Jamie R. Lutz, Stephen Novak, Ronda L. Hamm, Karl D. Schnelle, Andreas Vilcinskas, Kenneth E. Narva

Faculty Publications: Department of Entomology

Western corn rootworm, Diabrotica virgifera virgifera, is the major agronomically important pest of maize in the US Corn Belt. To augment the repertoire of the available dsRNA-based traits that control rootworm, we explored a potentially haplolethal gene target, wings up A (wupA), which encodes Troponin I. Troponin I, a component of the Troponin-Tropomyosin complex, is an inhibitory protein involved in muscle contraction. In situ hybridization showed that feeding on wupA-targeted dsRNAs caused systemic transcript knockdown in D. v. virgifera larvae. The knockdown of wupA transcript, and by extension Troponin I protein, led to deterioration of the striated banding pattern ...


A New Species And Synonymy In North American Phymatodes (Phymatodes) Mulsant, 1839 (Coleoptera: Cerambycidae: Cerambycinae: Callidiini), James E. Wappes, Antonio Santos-Silva 2019 American Coleoptera Museum, San Antonio, TX

A New Species And Synonymy In North American Phymatodes (Phymatodes) Mulsant, 1839 (Coleoptera: Cerambycidae: Cerambycinae: Callidiini), James E. Wappes, Antonio Santos-Silva

Insecta Mundi

Phymatodes (Phymatodes) huetheri Wappes and Santos-Silva (Coleoptera: Cerambycidae: Cerambycinae: Callidiini) from upstate New York, USA and Canada is described and illustrated. Phymatodes (Phymatodes) rainieri Van Dyke, 1937 is placed in synonymy with Phymatodes (Phymatodes) fulgidus Hopping, 1928.


Description Of A New Species Of Melanesiandra Santos-Silva Et Al. (Coleoptera: Cerambycidae: Parandrinae) Found In Vanuatu, Shunsuke Kakinuma 2019 Tokyo University of Agriculture and Technology

Description Of A New Species Of Melanesiandra Santos-Silva Et Al. (Coleoptera: Cerambycidae: Parandrinae) Found In Vanuatu, Shunsuke Kakinuma

Insecta Mundi

Melanesiandra anatomensis Kakinuma, new species (Coleoptera: Cerambycidae: Parandrinae), found in Aneityum Island (Vanuatu), is described and illustrated. An updated key is presented to separate the six known species of the genus.


Descripción De Una Especie Nueva Y Dos Nuevos Registros De Paraleurolobus Sampson Y Drews (Hemiptera: Aleyrodidae) De Guatemala, José Francisco García Ochaeta, Oscar Ángel Sánchez-Flores 2019 Ministerio de Agricultura Ganadería y Alimentación, Petén, Guatemala

Descripción De Una Especie Nueva Y Dos Nuevos Registros De Paraleurolobus Sampson Y Drews (Hemiptera: Aleyrodidae) De Guatemala, José Francisco García Ochaeta, Oscar Ángel Sánchez-Flores

Insecta Mundi

Se describe Paraleurolobus evansi García-Ochaeta y Sánchez-Flores sp. nov. (Hemiptera: Aleyrodidae) de Guatemala. Se comentan los caracteres diferenciales de esta especie con sus congéneres. Se incluye una clave para determinar las especies de Paraleurolobus Sampson y Drews, y se reportan por primera vez para Guatemala a P. chamaedoreae Russell y P. imbricatus Sampson y Drews.

Paraleurolobus evansi García-Ochaeta y Sánchez-Flores sp. nov. (Hemiptera: Aleyrodidae) is described from Guatemala. Differential characters between this and related species are discussed. A key is included to identify Paraleurolobus Sampson y Drews species, and P. chamaedoreae Russell and P. imbricatus Sampson y Drews are reported ...


Three New Madagascan Species Of Ochodaeus Dejean (Coleoptera: Scarabaeoidea: Ochodaeidae), M. J. Paulsen 2019 University of Nebraska State Museum

Three New Madagascan Species Of Ochodaeus Dejean (Coleoptera: Scarabaeoidea: Ochodaeidae), M. J. Paulsen

Insecta Mundi

Adults of three known species of Ochodaeus Dejean (Coleoptera: Scarabaeoidea: Ochodaeidae) in Madagascar have a strongly granulate pronotum. Three new species are described herein that have a smooth or weakly granulate pronotum: Ochodaeus modopunctatus, O. polypollicatus, and O. meandrus. A key to the species of Ochodaeus from Madagascar is provided.


Simpson (Geddes W.) Records, 1928-1989, Special Collections, Raymond H. Fogler Library, University of Maine 2019 The University of Maine

Simpson (Geddes W.) Records, 1928-1989, Special Collections, Raymond H. Fogler Library, University Of Maine

Finding Aids

Geddes Wilson Simpson received an A.B. in zoology from Bucknell University in 1929 and an A.M. in insect morphology from Cornell University in 1931. In 1935 he completed a Ph.D. in economic entomology at Cornell.

In 1931, Simpson joined the staff of the Maine Agricultural Experiment Station at the University of Maine. As a research entomologist, he gained national recognition for his work on aphids, especially those affecting potato plants. In 1952, Simpson was named professor of entomology at UMaine. He remained in that position until his retirement in 1974. For many years he was editor of ...


Intraguild Predation: Interactions Between Predators, Pathogens, And Their Shared Resources In Crop Pest Communities, Andrew Jason Flick 2018 Louisiana State University and Agricultural and Mechanical College

Intraguild Predation: Interactions Between Predators, Pathogens, And Their Shared Resources In Crop Pest Communities, Andrew Jason Flick

LSU Doctoral Dissertations

Crop pest management requires an understanding of the complex interactions among pest species that potentially damage crop yield and species that may be crucial for controlling pest species outbreaks. For example, predators, parasitoids, and pathogens are constantly interacting via their shared prey or hosts. Predators may prefer infected prey, which can be easier to catch; however, infected prey may be less nutritious or even lethal for predators. These interactions then dictate the short-term dynamics of host and pathogen as well as between prey and predator. "How these dynamics change as the species in the system change either empirically or theoretically ...


A Change In Grain? Diet Induced Plasticity In The Generalist Grasshopper Melanoplus Differentialis, Austin M. Culotta 2018 University of New Orleans

A Change In Grain? Diet Induced Plasticity In The Generalist Grasshopper Melanoplus Differentialis, Austin M. Culotta

University of New Orleans Theses and Dissertations

Phenotypic plasticity is favored in heterogeneous environments in which alternative phenotypes can exploit alternative resources. However, it’s not clear whether phenotypic plasticity is useful in environments that become more homogenous over an organism’s life cycle. I studied a population of grasshopper Melanoplus differentialis that experiences high resource diversity as nymphs but low resource diversity as adults to determine if individuals can undergo diet-induced morphological plasticity in head shape to increase biting ability and ingestion of hard diets. Insects on a soft diet were larger and had greater bite force than those on a hard diet. Head structures related ...


The Beetle Chronicler, Chris Dunker, Kayla Wolf, Brett Ratcliffe 2018 Lincoln Journal Star

The Beetle Chronicler, Chris Dunker, Kayla Wolf, Brett Ratcliffe

Papers in Entomology

Longtime UNL entomologist names beetles for dragons

Gymnetis rhaegali, Gymnetis drogoni, Gymnetis viserioni, Ambyoproctus boondocksius, Cyclocephala nadanotherwon, Strategus longichomperus

University of Nebraska entomology professor Brett Ratcliffe, who also curates the Nebraska State Museum's beetle collection, shows elephant beetles, a member of the scarab beetle family, in his office in Nebraska Hall.

Unlike their namesakes, three species of scarab beetles newly described by University of Nebraska-Lincoln entomologist Brett Ratcliffe do not breathe fire. Or, at least, entomologists and field researchers haven't observed them doing so.

Nor do the scarabs have the thick, reptilian scales and leathery wings like the ...


Reducing Protected Lands In A Hotspot Of Bee Biodiversity: Bees Of Grand Staircase-Escalante National Monument, Joseph S. Wilson, Matt Kelly, Olivia Messinger Carril 2018 Utah State University

Reducing Protected Lands In A Hotspot Of Bee Biodiversity: Bees Of Grand Staircase-Escalante National Monument, Joseph S. Wilson, Matt Kelly, Olivia Messinger Carril

Biology Faculty Publications

Grand Staircase-Escalante National Monument is a federally protected area found in central southern Utah. Designated in 1996 by President William J. Clinton, it was recently reduced in size by President Donald J. Trump in a proclamation that turned the one large monument into three smaller ones. A long-term, standardized study of the bees had been conducted from 2000–2003, revealing 660 species. The bee communities of the area are characterized by being spatially heterogeneous; most of the bees occur in isolated areas, with only a few being both abundant and widespread. Here we examine what affect the recent resizing of ...


Ray Et Al.: Pheromone Of The Velvet Longhorned Beetle Trichoferus Campestris, Ann M. Ray, Joseph A. Francese, Yunfan Zou, Kristopher Watson, Damon J. Crook, Jocelyn G. Millar 2018 Xavier University

Ray Et Al.: Pheromone Of The Velvet Longhorned Beetle Trichoferus Campestris, Ann M. Ray, Joseph A. Francese, Yunfan Zou, Kristopher Watson, Damon J. Crook, Jocelyn G. Millar

Faculty Scholarship

No abstract provided.


Spotted Wing Drosophila (Drosophila Suzukii) In Arkansas: Winter Morphs, Wild Hosts, And Fungal Control, Rosalee Knipp 2018 University of Arkansas, Fayetteville

Spotted Wing Drosophila (Drosophila Suzukii) In Arkansas: Winter Morphs, Wild Hosts, And Fungal Control, Rosalee Knipp

Theses and Dissertations

Drosophila suzukii (Matsumura), or spotted wing drosophila (SWD), is an invasive fruit fly pest that was first found in the United States in 2008. Unlike native Drosophila, SWD females have a serrated ovipositor that allows them to attack ripening fruit. Since its introduction, it is unclear how and where they overwinter in Arkansas, what local hosts they utilize and what potential alternative tactics can be used to combat this pest. In states north of Arkansas, winter morphs (WM) of SWD are larger, darker pigmented, and can survive colder temperatures than SWD flies found in the summer. These WM were found ...


Evaluation Of Rice Stink Bug, Oebalus Pugnax (F.), Damage And Monitoring Techniques In Rice, Oryza Sativa L., And Grain Sorghum, Sorghum Bicolor (L.), Aaron Joseph Cato 2018 University of Arkansas, Fayetteville

Evaluation Of Rice Stink Bug, Oebalus Pugnax (F.), Damage And Monitoring Techniques In Rice, Oryza Sativa L., And Grain Sorghum, Sorghum Bicolor (L.), Aaron Joseph Cato

Theses and Dissertations

Rice stink bug, Oebalus pugnax (F.), is a serious pest of headed rice, Oryza sativa L. and an occasional pest of heading grain sorghum in the Mid-south. Work from this dissertation focuses on resolving gaps in and knowledge of rice stink bug sampling and management, and attempts to create a basis for rice stink bug damage assessment in future studies.

Field experiments were conducted from 2016-2018 to asses variation in sweep net sampling by observing producers, researchers, extension personnel, consultants and their workers. Large levels of variation were found in sweep lengths between observed sweepers and reliability of smaller sweep ...


Impact Of Roadside Maintenance Practices On Larinus Minutus (Gyllenhal), A Biological Control Agent Of Spotted Knapweed, Mary Elizabeth Ferguson 2018 University of Arkansas, Fayetteville

Impact Of Roadside Maintenance Practices On Larinus Minutus (Gyllenhal), A Biological Control Agent Of Spotted Knapweed, Mary Elizabeth Ferguson

Theses and Dissertations

Spotted knapweed, Centaurea stoebe, is an invasive weed found throughout much of the United States. Spotted knapweed is a rangeland weed where it was originally introduced into western North America in the 1880s.Where spotted knapweed spread to the southeastern U.S., it is found mostly along roadsides. It has been the focus of a biological control program beginning in the 1960s, with 12 insects established, with the final introductions occurring in the 1990s. After the success observed in the western U.S. and Canada with one of these insects, Larinus minutus, this weevil was established in northwestern Arkansas. It ...


A Tale Of Two Butterflies: The Effect Of Larval Social Environment And Circadian Rhythms On Mating Behavior In Bicyclus Anynana And Heliconius Hewitsoni, Deonna Nicole Robertson 2018 University of Arkansas, Fayetteville

A Tale Of Two Butterflies: The Effect Of Larval Social Environment And Circadian Rhythms On Mating Behavior In Bicyclus Anynana And Heliconius Hewitsoni, Deonna Nicole Robertson

Theses and Dissertations

Two key components of mate choice research focus on: 1) who an organism mates with, which may be influenced by any number of factors from sexual ornamentation to male-male competition; and, 2) when an organism courts, be it daily, monthly, or seasonally. Both aspects are especially important for gregarious species as mistakes in either can incur high costs to overall fitness. My research focuses on using butterflies to explore kin recognition from the larval stage and its possible impacts on adult mate choice and if courtship is circadian in Heliconius hewitsoni. My first experiment concerned kin recognition. When inbred, Bicyclus ...


Influence Of Loss Of Function Of The Fatty Acid Desaturase 7 Gene On Photosynthetic Activity And Foliar Redox Status, Janithri Savindya Wickramanayake 2018 University of Arkansas, Fayetteville

Influence Of Loss Of Function Of The Fatty Acid Desaturase 7 Gene On Photosynthetic Activity And Foliar Redox Status, Janithri Savindya Wickramanayake

Theses and Dissertations

Fatty Acid Desaturase7 (FAD7) is a chloroplast-localized enzyme that converts 16 and 18 carbon dienoic fatty acids to trienoic fatty acids. The suppressor of prosystemin-mediated response2 (spr2) mutant in tomato (Solanum lycopersicum) and the fad7-1 mutant in Arabidopsis (Arabidopsis thaliana) result in the loss of function of FAD7, which alter the fatty acid profiles of chloroplast membranes and enhance resistance against aphids. This research contributes toward the long-term goal of identifying factors that determine aphid resistance in FAD7 mutants. Previous data suggested constitutive differences between spr2 and WT including increased expression of genes associated with photosynthesis and differences in redox ...


Revision Of The Genus Monatractides (Parasitengona, Torrenticolidae) Of The United States And Canada: New Species, Re-Descriptions, Phylogenetics, And A Key To Species, Whitney Anne Nelson 2018 University of Arkansas, Fayetteville

Revision Of The Genus Monatractides (Parasitengona, Torrenticolidae) Of The United States And Canada: New Species, Re-Descriptions, Phylogenetics, And A Key To Species, Whitney Anne Nelson

Theses and Dissertations

The full suite of known Monatractides (Parasitengona, Torrenticolidae) taxa of North America (north of Mexico) are investigated herein using integrative methods. Species hypotheses are supported with morphology, geography, and phylogenetic analysis of the barcoding region of COI for 154 individuals from over 100 localities. Relationships between species are examined with a combined analysis of COI and 28S rDNA for 55 specimens. Previously described species are examined and re-described with color images and updated information, where possible. Our results indicate the need to synonymize two species: M. californica (Marshall, 1943) is a junior synonym of M. geographica (Marshall, 1943). We describe ...


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