Open Access. Powered by Scholars. Published by Universities.®

Entomology Commons™

Open Access. Powered by Scholars. Published by Universities.®

Biology

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 571 - 598 of 598

Full-Text Articles in Entomology

Aquatic Insects Of Selected Fishponds At Minor Clark Fish Hatchery, Rowan County, Kentucky, Lynda Jane Andrews May 1982

Aquatic Insects Of Selected Fishponds At Minor Clark Fish Hatchery, Rowan County, Kentucky, Lynda Jane Andrews

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Lynda Jane Andrews on May 3, 1982.


A Revision Of The North American Species In The Genus Euodynerus (Hymenoptera: Eumenidae), Ali Shallan Moalif May 1982

A Revision Of The North American Species In The Genus Euodynerus (Hymenoptera: Eumenidae), Ali Shallan Moalif

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-eight species of Euodynerus Dalla Torre are recognized from the Nearctic Region, of which one is Holarctic. Literature on the biology of fourteen species is reviewed and new biological information discussed for four species. The phylogenetic relationships of the genus Euodynerus to other genera and the classification and relationships of the species of Euodynerus are discussed. Seven subgenera are recognized of which four are new: Euodynerus, Pareuodynerus Bluethgen, Leucodynerus Bohart, Annodynerus new subgenus, Gonodynerus n. subgenus, Holodynerus n. subgenus and Plecodynerus n. subgenus. Their comparative morphology, phylogeny, and distrubution are discussed. Larval instars of E. hidalgo (Saussure), E. scutellaris …


Field Studies Comparing The Effectiveness Of A Synthetic Female Sex Pheromone ([R,Z]-5-[1-Decenyl] Dihydro-2[3h]-Furanone) And A Floral Bait (Phenylethyl Propionate + Eugenol 7:3) In Controlling Adult Populations Of The Japanese Beetle (Popillia Japonica Newman), Sharon Kay Stahl Apr 1981

Field Studies Comparing The Effectiveness Of A Synthetic Female Sex Pheromone ([R,Z]-5-[1-Decenyl] Dihydro-2[3h]-Furanone) And A Floral Bait (Phenylethyl Propionate + Eugenol 7:3) In Controlling Adult Populations Of The Japanese Beetle (Popillia Japonica Newman), Sharon Kay Stahl

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Sharon Kay Stahl on April 22, 1981.


Distribution And Ecology Of Cavernicolous Coleoptera In Bat Cave, Carter County, Kentucky, David Bruce Conn Apr 1980

Distribution And Ecology Of Cavernicolous Coleoptera In Bat Cave, Carter County, Kentucky, David Bruce Conn

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by David Bruce Conn on April 28, 1980.


Spider Community Organization : Seasonal Variation And The Role Of Vegetation Architecture, Cynthia L. Hatley, James A. Macmahon Jan 1980

Spider Community Organization : Seasonal Variation And The Role Of Vegetation Architecture, Cynthia L. Hatley, James A. Macmahon

Green Canyon Environmental Research Area, Logan Utah

The relationship between vegetation architecture and spider community attributes were examined in a big sage community. Spiders were separated into guilds using similarities of species' hunting behavior. Shrub architecture was experimentally manipulated in the field by either clippings 50% of the shrub's foliage to decrease foliage density or tying together a shrub's branches to increase foliage density. Shrub perturbations resulted in changes in the number of spider species, spider guilds and guild importance values. The number on spider species and guilds in the tied shrubs were significantly higher than those in the clipped or control shrubs sampled. Spider species diversity …


Eatonia No. 20, May 05, 1975, William L. Peters, Janice Peters Mar 1975

Eatonia No. 20, May 05, 1975, William L. Peters, Janice Peters

Eatonia

Eatonia was a newsletter established to facilitate communication among scientists working on a group of aquatic insects in the order Ephemeroptera, more commonly known as mayflies. The newsletter is named after Rev. Alfred E. Eaton who studied mayflies in England in the late 1800’s and is considered the “father” of the modern classification of mayflies.


Eatonia Sup. 01, Jan. 05, 1975, William L. Peters, Janice Peters Jan 1975

Eatonia Sup. 01, Jan. 05, 1975, William L. Peters, Janice Peters

Eatonia

Eatonia was a newsletter established to facilitate communication among scientists working on a group of aquatic insects in the order Ephemeroptera, more commonly known as mayflies. The newsletter is named after Rev. Alfred E. Eaton who studied mayflies in England in the late 1800’s and is considered the “father” of the modern classification of mayflies.


Comparison Of Laboratory Rhythms In Several Species And Genera Of Ants, Siu-Ming A. Soong Jan 1975

Comparison Of Laboratory Rhythms In Several Species And Genera Of Ants, Siu-Ming A. Soong

Loma Linda University Electronic Theses, Dissertations & Projects

Few simultaneous comparative studies of functional diversity have been made at the genus level. Four genera (Pogonomyrmex, Veromessor, Formica, Myrmecocystus) of ants were compared, two of them represented by two species each. Under controlled temperatures, in alternating light and dark, there was more difference in phase of rhythm among than within genera. This evidence adds to previous field evidence for a taxonomic explanation of such diversity in ants.


The Α-Glycerophosphate Cycle In Drosophila Melanogaster Iv. Metabolic, Ultrastructural, And Adaptive Consequences Of Αgpdh-1 "Null" Mutations, Stephen J. O'Brien, Yoshio Shimada Dec 1974

The Α-Glycerophosphate Cycle In Drosophila Melanogaster Iv. Metabolic, Ultrastructural, And Adaptive Consequences Of Αgpdh-1 "Null" Mutations, Stephen J. O'Brien, Yoshio Shimada

Biology Faculty Articles

"Null" mutations previously isolated at the αGpdh-1 locus of Drosophila melanogaster, because of disruption of the energy-producing α-glycerophosphate cycle, severely restrict the flight ability and relative viability of affected individuals. Two "null" alleles, αGpdh-1BO-1-4, and αGpdh-1BO-1-5, when made hemizygous with a deficiency of the αGpdh-1 locus,Df(2L)GdhA, were rendered homozygous by recombination with and selective elimination of the Df(2L)GdhA chromosome. After over 25 generations, a homozygous αGpdh-1BO-1-4stock regained the ability to fly despite the continued absence of …


The Α-Glycerophosphate Cycle In Drosophila Melanogaster. Iii. Relative Viability Of "Null" Mutants At The Α-Glycerophosphate Dehydrogenase-1 Locus, Stephen J. O'Brien, Bruce Wallace, Ross J. Macintyre Nov 1972

The Α-Glycerophosphate Cycle In Drosophila Melanogaster. Iii. Relative Viability Of "Null" Mutants At The Α-Glycerophosphate Dehydrogenase-1 Locus, Stephen J. O'Brien, Bruce Wallace, Ross J. Macintyre

Biology Faculty Articles

No abstract provided.


An Analysis Of Gene-Enzyme Variability In Natural Populations Of Drosophila Melanogaster And D. Simulans, Stephen J. O'Brien, Ross J. Macintyre Mar 1969

An Analysis Of Gene-Enzyme Variability In Natural Populations Of Drosophila Melanogaster And D. Simulans, Stephen J. O'Brien, Ross J. Macintyre

Biology Faculty Articles

Nine populations of D. melanogaster and two populations of D. simulans were analyzed for polymorphism in 10 gene-enzyme systems by the technique of gel electrophoresis. In the eight natural populations of D. melanogaster, an average of 54% of the enzymes were polymorphic, and the average heterozygosity was 22.7%. An experimental population of D. melanogaster, which has been maintained in a laboratory cage for 20 years, showed levels of polymorphism equivalent to those of natural populations. The D. simulans populations had much less variability. The possible factors involved in maintaining these polymorphisms are discussed.


Ecological Determination Of The Hour Of Nest Opening By An Ant, A. Dwight Smith Dec 1968

Ecological Determination Of The Hour Of Nest Opening By An Ant, A. Dwight Smith

Loma Linda University Electronic Theses, Dissertations & Projects

The timing of daily opening of the nest entrance by the red harvester ant Popnomyrmex californicus was studied during all four seasons. Multiple regression analysis of several , environmental variables shows that the variation from day to day in mean opening time can be attributed to temperature differences, with the time that a given temperature was reached being the most important single variable for the autumn days studied. An equation incorporating this and the minimum temperature was sufficient to specify the mean opening time to within a few minutes. For the spring days, it was necessary to combine sunrise time …


Ecological Factors Controlling Population Distribution Of The Burying Beetle, Nicrophorus Orbicollis Say, Gerald L. Demoss Jul 1968

Ecological Factors Controlling Population Distribution Of The Burying Beetle, Nicrophorus Orbicollis Say, Gerald L. Demoss

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Gerald L. DeMoss on July 11, 1968.


A Study Of The Extent Of Spread Of Infestation, Effects, And Possible Control Of The Tent Caterpillar In Lewis County, Kentucky, Edna Mae Love May 1968

A Study Of The Extent Of Spread Of Infestation, Effects, And Possible Control Of The Tent Caterpillar In Lewis County, Kentucky, Edna Mae Love

Morehead State Theses and Dissertations

A thesis presented to the faculty of the Graduate School at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Arts by Edna Mae Love on May 22, 1968.


Factors Influencing Population Growth Of Tribolium Brevicornis In The Laboratory, Amin Gulla May 1967

Factors Influencing Population Growth Of Tribolium Brevicornis In The Laboratory, Amin Gulla

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

To determine the effect of the factors of the environment (temperature, relative humidity, and food) on the population growth of Tribolium brevicornis, different levels of temperatures from 17.5°C - 37.5°C were used. Effect of these IeveIs of temperatures was tested upon both pre-embryonic and post-embryonic development. No hatching occurred at 17.5°C, but the threshold temperature (the minimum temperature for the development) was just before 17.5°C. The optimum temperature for the embryonic development was found to be between 32.5°C - 35°C.

With the use of the saturated salt solution according to Buxton (1931) and Buxton and Melanby (1934), certain humidity …


Nocturnal Flights Of Triatoma Protracta (Uhler) As Indicated By Collections At Black Light Traps : (Hemiptera: Reduviidae: Triatominae), Robert D. Sjogren Jun 1965

Nocturnal Flights Of Triatoma Protracta (Uhler) As Indicated By Collections At Black Light Traps : (Hemiptera: Reduviidae: Triatominae), Robert D. Sjogren

Loma Linda University Electronic Theses, Dissertations & Projects

An investigation into the environmental and ethological factors relating to summer flights of Triatoma protracta protracta (Uhler) was performed utilizing black light traps of original design. Field observations were conducted on 51 evenings during the period June 1 to October 31, 1964. The traps were operated on a surveillance basis for the remainder of a twelve month period.

A total of 398 adult Triatoma protracta were collected in traps around a residence located in the chaparral covered foothills 10 miles east of Redlands, California. In addition to observations on field behavior, laboratory dissections were performed on each bug to obtain …


The Webworm. 2. The Biology Of The Webworm, J A. Button Jan 1963

The Webworm. 2. The Biology Of The Webworm, J A. Button

Journal of the Department of Agriculture, Western Australia, Series 4

A detailed knowledge of the seasonal history of an insect pest is essential for an understanding of the way in which it is affected by various management and cultural practices.


Apparent Effects Of Refrigeration On The Rate Of Embryonic Development Of Mayfly (Hexagenia Limbata) Eggs, Roger Flattum Jan 1963

Apparent Effects Of Refrigeration On The Rate Of Embryonic Development Of Mayfly (Hexagenia Limbata) Eggs, Roger Flattum

Journal of the Minnesota Academy of Science

Hunt (19 5 3) states that temperature is an important factor influencing the rate of embryonic development of Hexagenia (mayfly) eggs. Pasvogel (1962) has reported that 46 days is the time limit Hexagenia eggs can remain dormant at temperatures slightly above freezing. It was the object of this investigation to continue this line of research and to determine the effects of temperature on the embryonic development of Hexagenia limbata eggs.


Insect Pests : Snails And Slugs, Clee Francis Howard Jenkins Jan 1960

Insect Pests : Snails And Slugs, Clee Francis Howard Jenkins

Journal of the Department of Agriculture, Western Australia, Series 4

WHILE snails and slugs are not insects, they have been included in this series of articles, because the damage they cause is very similar to that caused by insect pests—and furthermore, the task of testing and recommending control measures is usually left to the entomologists.


Technique For Demonstrating The Chromosomes In The Salivary Glands Of The Fruit Fly, Drosophila Melanogaster, M. M. Keith May 1956

Technique For Demonstrating The Chromosomes In The Salivary Glands Of The Fruit Fly, Drosophila Melanogaster, M. M. Keith

Journal of the Minnesota Academy of Science

No abstract provided.


Hive And Field Mortality Of Honey Bees In Northern Utah Due To Effects Of Certain Ecological And Chemical Factors, Shih Chun Ma May 1950

Hive And Field Mortality Of Honey Bees In Northern Utah Due To Effects Of Certain Ecological And Chemical Factors, Shih Chun Ma

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The honey bee is the most important pollinating insect in Utah, because various important crops such as fruits, legumes, and vegetable seed crops depend chiefly on it for pollination. In the past, honey bees have suffered repeated severe death losses through contact with arsenic and other agricultural chemicals. Recently the newer insecticides, such as DDT, chlordane, parathion, benzene hexachloride, lindane, toxaphene, and several kinds of miticides have further complicated the problem of bee survival. In addition, natural enemies such as predators and parasites and some unfavorable environmental conditions, including unfavorable temperature and humidity, wind, storm, and other changeable weather conditions, …


Insect Pests And Predators In Relation To Alfalfa Seed Setting In Southern Alberta And The Effects On These Insects Of Three Chlorinated Hydrocarbons, Gordon A. Hobbs May 1948

Insect Pests And Predators In Relation To Alfalfa Seed Setting In Southern Alberta And The Effects On These Insects Of Three Chlorinated Hydrocarbons, Gordon A. Hobbs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa-insect investigations, because of necessity, had been neglected in the province of Alberta during the war years. Work was resumed on this project in the spring of 1946 by the writer.

So much progress has been made in the field of insect pest control since the advent of war-born chlorinated hydrocarbons, that it was thought advisable to design an experiment which would test under Alberta conditions the results obtained in Utah where most of this type of research had been previously carried out, and would thus serve to bring investigations in this part of Canada up to date.

It is …


Population Size And Longevity Of Males And Females In Drosophila, Kathleen M. Murphy May 1943

Population Size And Longevity Of Males And Females In Drosophila, Kathleen M. Murphy

Bachelors’ Theses

The two ever present instincts of man are self-preservation and the propagation of the race. At the beginning of one’s life this urge to survive is wholly unconscious but later on this will to live Is supplimented within the individual as a definite conscious search for longevity. Awareness to this inherent and universal desire to live is evidenced by the sought after services of the physician or doctor; the presence of civil law with the law courts and many other protective establishments. This conscious awareness to the possibilities, no matter how slight, of extending or at least maintaining life has …


Nutrition Of The Wax Moth Larvae. Vitamin Requirement. I. Requirement For Vitamin B, Mykola H. Haydak Apr 1941

Nutrition Of The Wax Moth Larvae. Vitamin Requirement. I. Requirement For Vitamin B, Mykola H. Haydak

Journal of the Minnesota Academy of Science

No abstract provided.


The Life History Of The Dewberry Fruit Worm Cacoecia Rosaceana (Harr.) In Utah, Merlin W. Allen May 1937

The Life History Of The Dewberry Fruit Worm Cacoecia Rosaceana (Harr.) In Utah, Merlin W. Allen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study has been to determine the identity and the life history of certain larvae attacking dewberry fruits and foliage in a few sections of Utah. The dewberry fruit worm as it was called until it was definitely identified the oblique-banded leaf-roller, was first observed by farmers at Granite and Butlerville in 1932. Since 1934 it has been found affecting dewberries in other parts of northern Utah.

This investigation was begun in the spring of 1935 and continued until the fall of 1936, being made possible through the Utah Agricultural Experiment Station, Department of Entomology, and with …


Contributions To The Anatomy Of The Mature Larva Of Papilio Polyxenes Fab. (Lepidoptera: Papilionidae), Ernst J. Dornfeld Apr 1933

Contributions To The Anatomy Of The Mature Larva Of Papilio Polyxenes Fab. (Lepidoptera: Papilionidae), Ernst J. Dornfeld

Bachelors’ Theses

Thia study was undertaken with the purpose of gathering more comprehensive information on the larval anatomy of a typical member of the lepidopterous family Papilionidae. Except for investigations dealing with the osmeteria, literature on the general anatomy of this otherwise well known family is very scant. Because of the relatively small number of speci­mens that were available for study, this paper has been limi­ted to a discussion of the external anatomy and of the gross . morphology of the digestive tract, the urinary system, the silk glands, and the mandibular glands. Important papers in which these structures have been …


Spermatogenesis Of The Butterfly, Papilio Rutulus, John P. Munson Jan 1906

Spermatogenesis Of The Butterfly, Papilio Rutulus, John P. Munson

All Faculty Scholarship for the College of the Sciences

For a number of years I have been studying the spermatogenesis of Papilio rutulus (pl. 12, fig. 1) not ,with any one single problem especially in view, but with the aim of ascertaining the entire life history of its sperm cell, its various phases of development, its mode of growth and differentiation, the history of its several parts, and its relation to the organism.


Alfred E. Eaton - Father Of Modern Classification Of Mayflies, Late 1800'S, P. Barnard Jan 1890

Alfred E. Eaton - Father Of Modern Classification Of Mayflies, Late 1800'S, P. Barnard

Eatonia

This is the only known photograph of Rev. Alfred E. Eaton. It is provided by P. Barnard.

The Eatonia newsletter is named after Rev. Alfred E. Eaton who studied mayflies in England in the late 1800’s and is considered the “father” of the modern classification of mayflies.