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2018

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Articles 691 - 720 of 812

Full-Text Articles in Entomology

A Review Of Three Species-Level Taxa Of The Anthocharis Sara Complex (Lepidoptera: Pieridae: Pierinae: Anthocharidini), Todd L. Stout Jan 2018

A Review Of Three Species-Level Taxa Of The Anthocharis Sara Complex (Lepidoptera: Pieridae: Pierinae: Anthocharidini), Todd L. Stout

Insecta Mundi

A combination of five characters supports the arrangement of three species in the Anthocharis sara complex (Lepidoptera: Pieridae: Pierinae: Anthocharidini) consisting of Anthocharis sara Lucas, 1852 (Sara orangetip), Anthocharis thoosa Scudder, 1878 (southwestern orangetip), and Anthocharis julia W.H. Edwards, 1872 (Julia orangetip). These five characters include adult phenotypes, fifth instar larval coloration, pupal cone curvature and color, number of overwintering cycles, and interspecific contact zone behavior. This taxonomic treatment is generated from extensive life history studies from 12 western U.S. states through most of the sara complex distribution.


New Species Of The Scarabaeus Subgenus Scarabaeolus Balthasar, With A Review Of The Subgenus (Scarabaeidae: Scarabaeinae: Scarabaeini), Jiri Zídek, Svatopluk Pokorny Jan 2018

New Species Of The Scarabaeus Subgenus Scarabaeolus Balthasar, With A Review Of The Subgenus (Scarabaeidae: Scarabaeinae: Scarabaeini), Jiri Zídek, Svatopluk Pokorny

Insecta Mundi

The Scarabaeus subgenus Scarabaeolus Balthasar, 1965 (Scarabaeidae: Scarabaeinae: Scarabaeini) is defined and nine new species are described, six from the Republic of South Africa [S. (S.) fragilis sp. n., S. (S.) krugeri sp. n., S. (S.) lizleri sp. n., S. (S.) orientalis sp. n., S. (S.) rugosipennis sp. n., S. (S.) similis sp. n.] and one each from Angola [S. (S.) cunene sp. n.], Namibia [S. (S.) namibensis sp. n.] and Kenya [ …


Description Of A New Species Of Toumeyella Cockerell (Hemiptera: Coccomorpha: Coccidae) On Crataegus Mexicana Moc. And Sessé Ex Dc. (Rosaceae), Takumasa Kondo, Héctor González Jan 2018

Description Of A New Species Of Toumeyella Cockerell (Hemiptera: Coccomorpha: Coccidae) On Crataegus Mexicana Moc. And Sessé Ex Dc. (Rosaceae), Takumasa Kondo, Héctor González

Insecta Mundi

A new species of soft scale from Mexico, Toumeyella crataegi Kondo and González sp. nov., (Hemiptera: Coccomorpha: Coccidae) collected on Crataegus mexicana DC. (Rosaceae), is described and illustrated based on the adult female. An updated taxonomic key to the soft scale insects of the genus Toumeyella Cockerell known from Mexico is provided. The specific epithet of Toumeyella martinezi Kondo and González is here emended to T. martinezae. A checklist with information on geographical distribution, host plants and brief notes of all 18 currently known species of Toumeyella is provided.

Una nueva especie de escama blanda de México, Toumeyella crataegi …


New Records And Diagnostic Notes On Large Carpenter Bees (Hymenoptera: Apidae: Genus Xylocopa Latreille), From The Amazon River Basin Of South America, Jonathan R. Mawdsley Jan 2018

New Records And Diagnostic Notes On Large Carpenter Bees (Hymenoptera: Apidae: Genus Xylocopa Latreille), From The Amazon River Basin Of South America, Jonathan R. Mawdsley

Insecta Mundi

Previously unpublished museum specimen records are presented for 23 species of the genus Xylocopa Latreille (Hymenoptera: Apidae) collected in portions of the countries of Bolivia, Brazil, Peru, and Venezuela within the Amazon River basin of South America. Dichotomous keys and dorsal habitus photographs are provided for the identification of females of the 13 species of Xylocopa subgenus Neoxylocopa Michener, and females of the 10 species of Xylocopa subgenus Schonnherria Lepeletier, that have been recorded to date from the Amazon River basin.


A New Species Of Honduran Strongylaspis (Coleoptera: Cerambycidae: Prioninae), Maria Helena M. Galileo, Antonio Santos-Silva Jan 2018

A New Species Of Honduran Strongylaspis (Coleoptera: Cerambycidae: Prioninae), Maria Helena M. Galileo, Antonio Santos-Silva

Insecta Mundi

Strongylaspis antonkozlovi Galileo and Santos-Silva sp. nov. (Coleoptera: Cerambycidae: Prioninae) is described from Cusuco National Park in Honduras, becoming the second species of the genus known in that country. The new species is compared to S. bullata Bates, 1872, the most similar species.


Notes On The Amydetinae (Coleoptera: Lampyridae) In Mcdermott’S 1966 Catalogue Of Lampyridae, Oliver Keller, Marc A. Branham Jan 2018

Notes On The Amydetinae (Coleoptera: Lampyridae) In Mcdermott’S 1966 Catalogue Of Lampyridae, Oliver Keller, Marc A. Branham

Insecta Mundi

Nomenclatural changes are proposed and herein implemented for several beetles in the family Lampyridae (Coleoptera). Corrections of authorship are proposed for Psilocladus marginatus (Lewis), Psilocladus ruficollis (Kiesenwetter), and Dryptelytra fulvipennis E. Olivier. Dates of publication are corrected for Magnoculus marginatus (Guérin-Méneville), Psilocladus calvus Kirsch, Psilocladus peruvianus Kirsch, and Vesta vitellinothorax (Perty) a synonym of Vesta thoracica (G. A. Olivier). “Dodacles grandjeani E. Olivier” is found to be a nomen nudum, which actually refers to Dryptelytra grandjeani (E. Olivier).


Canthidium Alvarezi Martínez And Halffter, 1986: A Remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae), Francois Genier, Mario Cupello Jan 2018

Canthidium Alvarezi Martínez And Halffter, 1986: A Remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae), Francois Genier, Mario Cupello

Insecta Mundi

The species Canthidium alvarezi Martínez and Halffter, 1986 (Coleoptera: Scarabaeidae: Scarabaeinae) is transferred to the genus Ateuchus Weber, 1801, becoming Ateuchus alvarezi (Martínez and Halffter), new combination. Its relationship with other species in the genus is briefly discussed. The validity and ranking of the genus Lobidion Génier, 2010, originally described from a single female, is discussed based on the discovery of male specimens, which lead us to reclassify it as a monotypic subgenus of Ateuchus, becoming Ateuchus (Lobidion), new rank, with the only included species becoming Ateuchus (Lobidion) punctatissimus (Génier, 2010) new combination …


Melipona Beecheii Bennett (Hymenoptera: Apidae): Origen, Estudios Y Meliponicultura En Cuba, Julio A. Genaro, Walberto Loriga Jan 2018

Melipona Beecheii Bennett (Hymenoptera: Apidae): Origen, Estudios Y Meliponicultura En Cuba, Julio A. Genaro, Walberto Loriga

Insecta Mundi

Melipona beecheii Bennett is a common bee, native to Mexico and some parts of Central America. There has been much speculation about his presence in Cuba and Jamaica. The origin, the studies carried out, and the development of meliponiculture in Cuba are reviewed. The main diagnostic characteristics between M. beecheii and Apis mellifera Linnaeus, the only two highly social and domesticated species in Cuba, are presented. The historical trend has been the independent capture of colonies of M. beecheii, in the wild, by untrained farmers. These colonies are kept inside the trunks or branches of the trees that the …


The Dung Beetle Fauna Of The Big Bend Region Of Texas (Coleoptera: Scarabaeidae: Scarabaeinae), William D. Edmonds Jan 2018

The Dung Beetle Fauna Of The Big Bend Region Of Texas (Coleoptera: Scarabaeidae: Scarabaeinae), William D. Edmonds

Insecta Mundi

This paper reports the results of a 2001–2009 field study of the scarabaeine dung beetle fauna (Coleoptera: Scarabaeidae) of the Big Bend region of Texas, a three-county area of the Trans-Pecos portion of the Chihuahuan Desert. The observed fauna comprises 10 native species, Canthon blumei Halffter and Halffter, C. imitator Brown, C. praticola LeConte, and C. mixtus Robinson; Onthophagus browni Howden and Cartwright, O. knausi Brown, O. velutinus Horn and O. brevifrons Horn; Copris arizonensis Schaeffer and Phanaeus texensis Edmonds; as well as two exotic species introduced in the 1970s, Digitonthophagus gazella (Fabricius) and Euoniticellus intermedius (Reiche). The existing native …


Forty New Records Of Aleocharine Beetles, And Two New Species In The Genera Acrotona Thomson And Atheta Thomson, For The Province Of Manitoba, Canada (Coleoptera: Staphylinidae: Aleocharinae), Jan Klimaszewski, Benoit Godin, Anthony Davies, Caroline Bourdon, Denise Horwood Jan 2018

Forty New Records Of Aleocharine Beetles, And Two New Species In The Genera Acrotona Thomson And Atheta Thomson, For The Province Of Manitoba, Canada (Coleoptera: Staphylinidae: Aleocharinae), Jan Klimaszewski, Benoit Godin, Anthony Davies, Caroline Bourdon, Denise Horwood

Insecta Mundi

Forty new provincial records, including two new aleocharine species for the province of Manitoba (Coleoptera: Staphylinidae) are provided. The two new species, Acrotona manitobensis Klimaszewski and Godin, new species, and Atheta manitobae Klimaszewski and Godin, new species, are described and illustrated. Habitat information and new locality records are provided for the newly recorded species. The current number of Aleocharinae in Manitoba stands at 120 species, including 40 new records and two new species described here. A checklist of all currently recorded species from the province, with their distribution records in Canada and USA, is included.


New Genus And Species Of Yponomeutidae (Lepidoptera: Yponomeutoidea) Associated With Maytenus Boaria Molina (Celastraceae) From Chile, With Descriptions Of Immature Stages And Natural History Observations, Danilo E. Cepeda Jan 2018

New Genus And Species Of Yponomeutidae (Lepidoptera: Yponomeutoidea) Associated With Maytenus Boaria Molina (Celastraceae) From Chile, With Descriptions Of Immature Stages And Natural History Observations, Danilo E. Cepeda

Insecta Mundi

A new genus and species of Yponomeutidae (Lepidoptera: Yponomeutoidea) from Chile, Chileporter huemeri n. gen. and n. sp., is described based on adults, larvae and pupae. This is the second record of a specific herbivore associated with Maytenus boaria Molina.

Se describe un nuevo género y especie de Yponomeutidae (Lepidoptera: Yponomeutoidea) de Chile, Chileporter huemeri n. gen. y n. sp., basado en caracteres morfológicos del adulto, larva y pupa. Este corresponde al segundo registro de un herbívoro específico asociado a Maytenus boaria Molina.


Contribution To The Knowledge Of Chilean Phycitinae (Lepidoptera: Pyralidae): New Species Of Passadena Hulst, 1900, And Ragonotia Grote, 1888, From Northern Chile, Danilo E. Cepeda Jan 2018

Contribution To The Knowledge Of Chilean Phycitinae (Lepidoptera: Pyralidae): New Species Of Passadena Hulst, 1900, And Ragonotia Grote, 1888, From Northern Chile, Danilo E. Cepeda

Insecta Mundi

Two new species of Phycitinae (Lepidoptera: Pyralidae) from Chile are described: Passadena mistralae Cepeda, n. sp., and Ragonotia campodonicoi Cepeda, n. sp. Adult external morphological characters, as well as male and female genitalia, are described and illustrated for both taxa.

Se describen dos nuevas especies de Phycitinae (Lepidoptera: Pyralidae) de Chile: Passadena mistralae Cepeda, n. sp., y Ragonotia campodonicoi Cepeda, n. sp. Para ambos taxa, se entregan caracteres morfológicos externos del adulto y se describen e ilustran la genitalia masculina y femenina.


New Species Of Elaphidiini From Central America (Coleoptera: Cerambycidae: Cerambycinae), James E. Wappes, Juan Pablo Botero, Antonio Santos-Silva Jan 2018

New Species Of Elaphidiini From Central America (Coleoptera: Cerambycidae: Cerambycinae), James E. Wappes, Juan Pablo Botero, Antonio Santos-Silva

Insecta Mundi

Four new species of Elaphidiini (Coleoptera: Cerambycidae: Cerambycinae) are described: Psyrassa vandenberghei Wappes, Botero and Santos-Silva, from Nicaragua; Psyrassa androwi Wappes, Botero and Santos-Silva, from Belize, Costa Rica, Nicaragua and Panama; Psyrassa vandevenderi Wappes, Botero and Santos-Silva, from Mexico; and Aneflomorpha monzoni Wappes, Botero and Santos-Silva, from Guatemala.


Erratum To Cano (2018): A New Anomiopus Westwood (Coleoptera: Scarabaeidae: Scarabaeinae) From The Mayan Biosphere Reserve, Petén, Guatemala, Enio B. Cano Jan 2018

Erratum To Cano (2018): A New Anomiopus Westwood (Coleoptera: Scarabaeidae: Scarabaeinae) From The Mayan Biosphere Reserve, Petén, Guatemala, Enio B. Cano

Insecta Mundi

After publication of Cano (2018), it was noticed that the wrong holotype photographs of Anomiopus cirulito Cano were included in Figure 3, resulting in images that did not correspond to the captions. The author and the Insecta Mundi editorial staff apologize for this error. The intended version of Figure 3 is reproduced here. Insecta Mundi has also released a revised version of the Cano (2018) manuscript, with this error corrected. However, the revised version is not an official peer-reviewed article, and anyone wishing to reference the findings of Cano (2018) should cite the original manuscript or this erratum.


A New Species Of Philacelota Heller (Scarabaeidae: Melolonthinae: Melolonthini) From Flores Island, Indonesia, Jiri Zidek Jan 2018

A New Species Of Philacelota Heller (Scarabaeidae: Melolonthinae: Melolonthini) From Flores Island, Indonesia, Jiri Zidek

Insecta Mundi

Philacelota jakli sp. n. (Scarabaeidae: Melolonthinae: Melolonthini) is described, illustrated and compared with the other two known congeners, P. submaculata Heller and P. sulana Heller. Philacelota sub maculata is here designated the type species for the genus.


New Species And Records Of Elateridae (Coleoptera) From Cuatrociénegas, Coahuila, Mexico, Paul J. Johnson, David C. Lightfoot Jan 2018

New Species And Records Of Elateridae (Coleoptera) From Cuatrociénegas, Coahuila, Mexico, Paul J. Johnson, David C. Lightfoot

Insecta Mundi

Eleven species of Elateridae (Coleoptera) were collected during a two-year arthropod inventory survey at the Cuatrociénegas Natural Protected Area, Coahuila, Mexico. Aeolus cuatro new species, Horistonotus coahuila new species, and Megapenthes cienegas new species are described for the first time. Additionally reported as new state records are Conoderus athoides (LeConte), C. lividus (De Geer), Deilelater mexicanus (Champion), Esthesopus parcus Horn, and Dipropus rufulus (Candèze). Sixteen species of click beetle are now recorded from Coahuila. The sampled habitats and the environmental setting are briefly described with images of each sampling site.

Once especies de Elateridae (Coleoptera) fueron recolectadas durante …


Remarks On The Subgenus Cylinderina Rivalier (Coleoptera: Cicindelidae: Cylindera) From The Philippines With Description Of A New Species 144. Contribution Towards The Knowledge Of The Cicindelidae, Jürgen Wiesner, Charles Dheurle Jan 2018

Remarks On The Subgenus Cylinderina Rivalier (Coleoptera: Cicindelidae: Cylindera) From The Philippines With Description Of A New Species 144. Contribution Towards The Knowledge Of The Cicindelidae, Jürgen Wiesner, Charles Dheurle

Insecta Mundi

Cylindera (Cylinderina) sierramadrensis Wiesner and Dheurle, new species (Coleoptera: Cicindelidae) is described from Luzon. Re-descriptions of the other seven species of this subgenus (C. (C.) nanula (Horn, 1937), C. (C.) nana (Schaum, 1862), C. (C.) pseudonana (Horn, 1924), C. (C.) werneri Wiesner, 1988, C. (C.) rothschildi (Horn, 1896), C. (C.) genieri Cassola and Werner, 2003, C. (C.) vandenberghei Dheurle, 2016) are provided together with a key and pictures of their habitus, labrum and aedeagus.


Using Colony Monitoring Devices To Evaluate The Impacts Of Land Use And Nutritional Value Of Forage On Honey Bee Health, Matthew D. Smart, Clint R.V. Otto, Robert Cornman, Deborah Iwanowicz Jan 2018

Using Colony Monitoring Devices To Evaluate The Impacts Of Land Use And Nutritional Value Of Forage On Honey Bee Health, Matthew D. Smart, Clint R.V. Otto, Robert Cornman, Deborah Iwanowicz

Department of Entomology: Faculty Publications

Colony monitoring devices used to track and assess the health status of honey bees are becoming more widely available and used by both beekeepers and researchers. These devices monitor parameters relevant to colony health at frequent intervals, often approximating real time. The fine-scale record of hive condition can be further related to static or dynamic features of the landscape, such as weather, climate, colony density, land use, pesticide use, vegetation class, and forage quality. In this study, we fit commercial honey bee colonies in two apiaries with pollen traps and digital scales to monitor floral resource use, pollen quality, and …


The Six-Legged Subject: A Survey Of Secondary Science Teachers’ Incorporation Of Insects Into U.S. Life Science Instruction, Erin Ingram, Douglas Golick Jan 2018

The Six-Legged Subject: A Survey Of Secondary Science Teachers’ Incorporation Of Insects Into U.S. Life Science Instruction, Erin Ingram, Douglas Golick

Department of Entomology: Faculty Publications

To improve students’ understanding and appreciation of insects, entomology education efforts have supported insect incorporation in formal education settings. While several studies have explored student ideas about insects and the incorporation of insects in elementary and middle school classrooms, the topic of how and why insects are incorporated in secondary science classrooms remains relatively unexplored. Using survey research methods, this study addresses the gap in the literature by (1) describing in-service secondary science teachers’ incorporation of insects in science classrooms; (2) identifying factors that support or deter insect incorporation and (3) identifying teachers’ preferred resources to support future entomology education …


Cyclocephala Labidion Ratcliffe, A New Report For The Fauna Of Nicaragua (Scarabaeidae: Dynastinae: Cyclocephalini), Jean Michel Maes, Brett C. Ratcliffe Jan 2018

Cyclocephala Labidion Ratcliffe, A New Report For The Fauna Of Nicaragua (Scarabaeidae: Dynastinae: Cyclocephalini), Jean Michel Maes, Brett C. Ratcliffe

Department of Entomology: Faculty Publications

Se redescribe e ilustra Cyclocephala labidion Ratcliffe, nuevo reporte para la fauna de Nicaragua. Se compara con otras especies de aspecto similar, principalmente Cyclocephala lunulata Burmeister, con quien es casi idéntica.

Cyclocephala labidion Ratcliffe is reported for first time from Nicaragua, described, illustrated, and compared with other species similar in appearance, especially Cyclocephala lunulata Burmeister with which it is nearly identical externally.


Integrated Pest Management Plan, Bryon Kacprzyk Jan 2018

Integrated Pest Management Plan, Bryon Kacprzyk

Department of Entomology: Distance Master of Science Projects

This Integrated Pest Management Plan is to provide a framework through which pest management is defined and accomplished in northern Lowndes County in Georgia and focusing on Moody AFB. The plan identifies elements of the program to include health, environmental protection, safety, training, pest identification and pest management. This plan is to be used as a tool to reduce pesticide use, enhance environmental protection, and maximize the use of integrated pest management techniques. The overall objective of the program is to provide guidance for operating an effective pest management program. Integrated Pest Management (IPM) principles are stressed and application of …


The Endangered Insects Of North America: A Brief Survey, Angela Anthony, Jan 2018

The Endangered Insects Of North America: A Brief Survey, Angela Anthony,

Department of Entomology: Distance Master of Science Projects

Foreword 3

Chapter One: Introduction 4

Chapter Two: American Burying Beetle, Nicrophorus americanus 8

Chapter Three: Karner Blue Butterfly, Lycaeides melissa samuelis 12

Chapter Four: Hine’s Emerald Dragonfly, Somatochlora hineana 15

Chapter Five: Hawaiian Picture Wing Fly, Drosophila sp 18

Chapter Six: Zayante Band-Winged Grasshopper, Trimerotropis infantilis 21

Chapter Seven: Salt Creek Tiger Beetle, Cicindela nevadica lincolniana 24

Chapter Eight: Rusty Patched Bumble Bee, Bombus affinis 27

Chapter Nine: Monarch Butterfly, Danaus plexippus 31

Chapter Ten: Conclusion and How to Get Involved 35

References and Further Reading 37

Acknowledgments 41

About the Author


Mimicry In Insects: An Illustrated Study In Mimicry And Cryptic Coloration In Insects, Merrie Schultz Jan 2018

Mimicry In Insects: An Illustrated Study In Mimicry And Cryptic Coloration In Insects, Merrie Schultz

Department of Entomology: Distance Master of Science Projects

INSECT MIMICRY 4

WHAT IS MIMICRY? 5

MÜLLERIAN MIMICRY 7

MÜLLERIAN MIMICRY 8

YELLOWJACKET – VESPULA SPP. 9

HONEY BEE – APIS SPP. 10

BUMBLE BEE – BOMBUS SPP. 11

VELVET ANT (COW KILLER) – DASYMUTILLA OCCIDENTALIS 12

BLISTER BEETLE – EUPOMPHA ELEGANS 13

THREAD-WAISTED WASP – AMMOPHILA SPP. 14

MONARCH BUTTERFLY – DANAUS PLEXIPPUS 15

VICEROY BUTTERFLY – LIMENTIS SPP. 16

BATESIAN MIMICRY 17

BATESIAN MIMICRY 18

METALLIC WOODBORING BEETLE – ACMAEODERA SPP. 19

WASP BEETLE – CLYTUS SPP. 20

FLOWER LONGHORN BEETLE – TYPOCERUS SPP. 21

BEE BEETLE – TRICHIUS SPP. 22

BEE FLY – BOMBYLIUS SPP. 23 …


Understanding And Controlling The Red Legged Ham Beetle (Necropia Rufipes), Alexandria Hammel Jan 2018

Understanding And Controlling The Red Legged Ham Beetle (Necropia Rufipes), Alexandria Hammel

Department of Entomology: Distance Master of Science Projects

The Red Legged Ham Beetle (Necrobia rufipes), RLHB has fascinated me since the moment we met. The beautiful greens and blues that sparkle from its elytra, the sharp and fast red legs that flash just below the body and just last month I was able to see a RLHB in flight for the first time. My squeal of delight was not left un-mocked by my coworkers. This beetle is a detrimental and determined stored product pest. One that, we in the pet food business, don’t take lightly. This generated a need for control in warehousing as distribution but …


Emerald Ash Borer (Coleoptera: Buprestidae) Host Expansion; Trading An Optimal Host For Enemy Free Space?, David G. Olson Jan 2018

Emerald Ash Borer (Coleoptera: Buprestidae) Host Expansion; Trading An Optimal Host For Enemy Free Space?, David G. Olson

Theses and Dissertations--Entomology

Emerald ash borer (EAB), Agrilus planipennis (Coleoptera: Buprestidae), is an aggressive invader from Asia that has killed millions of trees in North America. Recently EAB has been documented developing in a novel host, white fringetree, Chionanthus virginicus. I evaluated larval performance in two common ash species and white fringetree by infesting excised bolts with emerald ash borer eggs. In addition I evaluated several plant characteristics to determine which most influence larval development. I also conducted choice and no choice assays using the classical biological control agent, Tetrastichus planipennisi (Hymenoptera: Eulophidae), to assess its ability to locate larval EAB in …


Dna Barcoding As A Tool For Species Discovery And Documentation In The Superfamily Ichneumonoidea, Sarah Meierotto Jan 2018

Dna Barcoding As A Tool For Species Discovery And Documentation In The Superfamily Ichneumonoidea, Sarah Meierotto

Theses and Dissertations--Entomology

Changes to traditional taxonomic methods to incorporate new technologies and methods have already improved the quality of species hypotheses, but more work can be done to improve the speed of new species documentation. The mitochondrial COI DNA barcode has been successfully used to identify species with high accuracy since the early 2000s, and has been used in conjunction with morphological examinations and other DNA markers to discover and delimit new species. This thesis explores the application of DNA barcodes as the primary data for delimitation and diagnosis of new species of ichneumonoids.

The genera Zelomorpha and Hemichoma are revised and …


Wild Type Drosophila Melanogaster Eye Pigments: Examining Absorbance Spectra And Light Sensitivity, Erin Brown, Taylor M. Delaney Jan 2018

Wild Type Drosophila Melanogaster Eye Pigments: Examining Absorbance Spectra And Light Sensitivity, Erin Brown, Taylor M. Delaney

A with Honors Projects

The eyes of wild type fruit flies contain various pigments that contribute to a brick red color. Chromatography techniques are used to separate and view these pigments. IN this project, the students extract and gather absorbance spectra for these pigments using three methods: eye pigment chromatography, pigment extraction and spectrophotometry, and spectrophotometry and photosensitivity. The methods are compared to determine how efficient they are at separating and extracting pigments and producing reliable results when examining absorbance spectra. To explore the photosensitivity of the pigments, we compare absorbance spectra changes to a pigment solution.


Insecticidal Seed And In-Furrow Treatment Recommendations For Soybean And Sunflower, Brady Hauswedell Jan 2018

Insecticidal Seed And In-Furrow Treatment Recommendations For Soybean And Sunflower, Brady Hauswedell

Electronic Theses and Dissertations

Throughout the 2016 and 2017 growing season, field research experiments were replicated across South Dakota. Many times seed treatments are used prophylactic, which is neither good for the producers or the environment. Producers will be able to reduce production costs, if they only use a seed treatment when necessary. The purpose of the first experiment was to determine the effects of seed treatments in combination with planting date and seeding rate on soybean yield. To determine the effects, two years of field data from four eastern South Dakota locations were compared. Within each year and location we compared two planting …


Aquatic Invertebrate Community Structure, Biological Condition, Habitat, And Water Quality At Ozark National Scenic Riverways, Missouri, 2005-2014, David E. Bowles, L. W. Morrison, J. T. Cribbs Jan 2018

Aquatic Invertebrate Community Structure, Biological Condition, Habitat, And Water Quality At Ozark National Scenic Riverways, Missouri, 2005-2014, David E. Bowles, L. W. Morrison, J. T. Cribbs

Journal of the Arkansas Academy of Science

Ozark National Scenic Riverways (OZAR) was established to protect the corridor of the Current River and its major tributary, the Jacks Fork. The Current River is one of the few remaining free-flowing rivers in the U.S., with much of its base flow coming from several large springs. To assess the biological condition of these rivers, aquatic invertebrate community structure was monitored from 2005 to 2014. Benthic invertebrate samples and associated habitat and water quality data were collected from each of nine sampling sites using a Slack-Surber sampler. The Stream Condition Index (SCI), a multimetric index that incorporates taxa richness, EPT …


Jeweled Spider Flies (Eulonchus Tristis) Are Important Pollinators Of Iris Bracteata, A Rare Siskiyou Mountain Endemic, Jean-Paul E. Ponte Jan 2018

Jeweled Spider Flies (Eulonchus Tristis) Are Important Pollinators Of Iris Bracteata, A Rare Siskiyou Mountain Endemic, Jean-Paul E. Ponte

Cal Poly Humboldt theses and projects

Little is known about the pollination biology of the Pacific Coast Irises (Iris: series Californicae, hereafter PCI), especially who visits and pollinates their flowers. In general, Iris flowers are considered bee-pollinated, however, flies in the genus Eulonchus (Acroceridae) are known to visit some PCI members. Therefore, I assessed the relative importance of Eulonchus and other insect visitors to the pollination of a rare PCI species native to the Siskiyou Mountains, I. bracteata.

Methods. I quantified pollinator importance for all flower visitors at sites in northern California and southern Oregon as the product of average visit rate and …