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University of Nebraska - Lincoln

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Articles 4051 - 4080 of 4226

Full-Text Articles in Entomology

European Corn Borer, Ostrinia Nubilalis (Hbn.) Populations In Field Corn, Zea Mays (L.) In The North Central United States, R. E. Hill, A. N. Sparks, C. C. Burkhardt, H. C. Chiang, M. L. Fairchild, W. D. Guthrie Aug 1967

European Corn Borer, Ostrinia Nubilalis (Hbn.) Populations In Field Corn, Zea Mays (L.) In The North Central United States, R. E. Hill, A. N. Sparks, C. C. Burkhardt, H. C. Chiang, M. L. Fairchild, W. D. Guthrie

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A long-range study of the annual changes in corn borer populations in the North Central States was started in Minnesota, Iowa, Kansas and Nebraska in 1955 and in Missouri and Ohio in 1956. This investigation was a phase of a broader Regional Project, NC-20, entitled "Factors Influencing Corn Borer Populations" and was undertaken to measure by standardized procedures the seasonal changes in abundance of the European corn borer, Ostrinia nubilalis (Hbn.), under cropping procedures in different locations within, the North Central States. Much valuable information has been accumulated on the abundance and effects of various physical and biotic factors on …


Distribution Of Eggs And Leaf Mines Of Choristoneura Houstonana (Lepidoptera: Tortricidae) Attacking Eastern Red Cedar, Juniperus Virginiana, Elvis A. Heinrichs Jul 1967

Distribution Of Eggs And Leaf Mines Of Choristoneura Houstonana (Lepidoptera: Tortricidae) Attacking Eastern Red Cedar, Juniperus Virginiana, Elvis A. Heinrichs

Department of Entomology: Faculty Publications

Cedar at Larned, Kansas, appeared to be more severely damaged in the upper and southern portions of the trees. There was a significant difference, in numbers of eggs and leaf mines, between the upper and lower halves and between compass directions; the upper and southern portions of the trees being most highly infested.

Choristoneura houstonana (Grote) is a pest of eastern red cedar, Juniperus virginiana, grown as a home landscape ornamental in shelter belts and windbreaks in western Kansas. It has been present for many years but the first reliable record in Kansas was in 1964, when it was sent …


Arthropods Of Medical Importance In Asia (And The European Ussr), Part Ii: Data On Arthropods Other Than Mosquitoes, Bernard V. Travis, Renato M. Labadan Jun 1967

Arthropods Of Medical Importance In Asia (And The European Ussr), Part Ii: Data On Arthropods Other Than Mosquitoes, Bernard V. Travis, Renato M. Labadan

Harold W. Manter Laboratory of Parasitology: Library Materials

Includes information on black flies, sand flies, midges, horse flies, biting flies, non-biting flies, fleas, bugs, urticating and vesicating arthropods, ticks, mites, and miscellaneous arthropods of medical importance from Asia and the European USSR.


A Revision Of The Bees Of The Genus Andrena Of The Western Hemisphere. Part I. Callandrena. (Hymenoptera: Andrenidae), Wallace E. Laberge Jan 1967

A Revision Of The Bees Of The Genus Andrena Of The Western Hemisphere. Part I. Callandrena. (Hymenoptera: Andrenidae), Wallace E. Laberge

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

This paper is the first part of a monograph of the bee genus Andrena in the western hemisphere and treats the subgenus Callandrena. Available data regarding phylogeny, distribution, biology, and flower preferences are presented together with keys to separate the species, diagnoses and descriptions of the species and discussions of geographic variation when applicable. Seventy-nine species and one subspecies are recognized. Sixteen names are relegated to synonymy, one to homonymy and eight are removed from the subgenus Callandrena. The thirty-nine species new to science are: aerifera, aeripes, afimbriata, ardis, auripes, balsamorhizae, beameri, bilimeki, bullata, calvata, dreisbachorum, fulminea, fulminoides, …


A New Species Of Rhinoceros, Aphelops Kimballensis, From The Latest Pliocene Of Nebraska, Lloyd G. Tanner Jan 1967

A New Species Of Rhinoceros, Aphelops Kimballensis, From The Latest Pliocene Of Nebraska, Lloyd G. Tanner

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

An uncrushed skull and associated skeletal elements of a very large rhinoceros are the basis for the description of a new species of Aphelops from Frontier County, Nebraska. The major differences are: the skull is much larger in most dimensions than other Aphelops; it has an extremely elevated occipital region in comparison to Aphelops mutilus; the narial notch is retracted to a point perpendicular to the center of molar one; and the teeth are more hypsodont than any other species of this genus. The sediments which yielded the skull and skeletal parts are considered to be Kimballian in …


The Monotypic North American Subgenus Larandrena Of Andrena (Hymenoptera: Apoidea), D. W. Ribble Jan 1967

The Monotypic North American Subgenus Larandrena Of Andrena (Hymenoptera: Apoidea), D. W. Ribble

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

Larandrena contains a single species, A. miserabilis Cresson. This small, common Andrena is found throughout most of the United States and southern Canada in the spring. The subgeneric position, nomenclature, redescription. variation, notes on the biology, parasites, range, seasonal activity and plant host records are included. A. rniserabilis is thought to be an important pollinator of fruit trees.


Citellus Kimballensis, A New Late Pliocene Ground Squirrel, Douglas C. Kent Jan 1967

Citellus Kimballensis, A New Late Pliocene Ground Squirrel, Douglas C. Kent

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

A new fossil sciurid, Citellus kimballensis, is described. This new species was found in the Kimball Formation, uppermost Ogallala (very late Pliocene) at the University of Nebraska State Museum Collecting Locality Cn-1O1, northeast of Sidney, Cheyenne County, Nebraska. Characters of the dentition and skull of C. kimballensis are compared with those of other species of the genus, and with those of Cynomys.


The Brule-Gering (Oligocene-Miocene) Contact In The Wildcat Ridge Area Of Western Nebraska, C. Bertrand Schultz, Charles H. Falkenbach, Carl F. Vondra Jan 1967

The Brule-Gering (Oligocene-Miocene) Contact In The Wildcat Ridge Area Of Western Nebraska, C. Bertrand Schultz, Charles H. Falkenbach, Carl F. Vondra

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

The contact between the Brule Formation (Oligocene) and the Gering Formation (Miocene) can be readily distinguished in the Wildcat Ridge area, as elsewhere in western Nebraska. At the critical fossiliferous exposures at Castle Rock in Scotts Bluff County, the contact on the south face between the two formations is defined as 129 feet above the base of the "Upper Ash" bed, which corresponds to the upper portion of Darton's (1899, PI. C, Fig. D, following p. 754) "sandy phase" in the upper part of the Brule. Certain key beds in the Gering Formation can be traced laterally from a channel …


A Revision Of The Genus Furnaricola(Mallophaga) With Descriptions Of New Species, M. A. Carriker Jr. Jan 1967

A Revision Of The Genus Furnaricola(Mallophaga) With Descriptions Of New Species, M. A. Carriker Jr.

Department of Entomology: Faculty Publications

The present paper has been prepared with much care for two reasons: The first and most urgent is to clarify the taxonomic position of the genus itself, which has been a controversial one since it was placed under the synonomy of Rallicola in the 1952 "Checklist of Mallophaga" by Hopkins and Clay. The second reason is to describe additional material which has been collected by the author since the genus was established in 1944 and also to record its occurrence on two other families of birds, from one of which no Mallophaga have previously been taken..

It will be noted …


Department Of Entomology Newsletter - No. 2, 1966, D. W. Ribble May 1966

Department Of Entomology Newsletter - No. 2, 1966, D. W. Ribble

Hexapod Herald and Other Entomology Department Newsletters

Lawrence Bruner - Pioneer Nebraska Entomologist

Bruner Entomology Club

New Department Facilities

Staff: Lloyd W. Andersen, Nina Jeffrey, Aline N. Bare, Esther A. Schock, Calvin M. Jones, Robert E. Roselle, Roscoe E. Hill, Arthur F. Hagen, Kenneth P. Pruess, Terrance L. Dukes, Ahmed M. Kadoum, S. Dean Kindler, Robert Staples, Harold J. Ball, Donald E. Lawson, Gerald T. Weekman, George R. Manglitz, John F. Hermanussen, Walter R. Akeson, Henry Stevens, Johnny M. Perdue, James M. Schalk, Warren T. At yeo, J erold H. L. Bell, Jon J. Rhine

Graduate Students: Khogali Ahmed, David L. Keith, J. Derril Munson, Saad Elfaki, …


Melathion, Naled, Fenthion, And Bayer 39007 Thermal Fogs For Control Of The Stable Fly, Gary A. Mount, C. S. Lofgren, James B. Gahan Jan 1966

Melathion, Naled, Fenthion, And Bayer 39007 Thermal Fogs For Control Of The Stable Fly, Gary A. Mount, C. S. Lofgren, James B. Gahan

Entomology Papers from Other Sources

The stable fly, Stomoxys calcitrans (L.), or dog fly, as it is commonly called in northwest Florida, has been a serious nuisance in that area for many years. Blakeslee (1945) found that DDT gave effective control when it was applied as a residual spray to larval breeding areas in marine grass deposits. However, in recent years this method has not provided the degree of control necessary. As a result, large numbers of adult flies have at times seriously affected the tourist industry of northwest Florida. On the basis of our work, and that of others, with thermal fogs for mosquito …


The Feather Mite Genus Proctophyllodes (Sarcoptiformes: Proctopbyllodidae), Warren T. Atyeo, Norman L. Braasch Jan 1966

The Feather Mite Genus Proctophyllodes (Sarcoptiformes: Proctopbyllodidae), Warren T. Atyeo, Norman L. Braasch

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

A systematic revision is presented for the genus Proctophyllodes. Data on the bionomics, morphology, and host-parasite relationships are included.


Usda Insect Control By Host Plant Resistance Class, Stephen D. Danielson Jan 1966

Usda Insect Control By Host Plant Resistance Class, Stephen D. Danielson

Department of Entomology: Faculty Publications

Row 1: Donald B. Leuck, John M. McWilliams, Kenneth J. Starks, George R. Manglitz, William W. McMillian, R. H. Painter, Harry W. Somsen, Billy R. Wiseman, W.A. Douglas, R.L. Gallun.

Row 2: Eldon E.Ortman, Roger Ratcliffe, James R. Gifford, Fowden G. Maxwell, Edgar L. Sorensen, S. Dean Kindler, W. D. Guthrie, James A. Webster, John A. Schillinger, Walter E. Peay.

Row 3: George R. Pesho, William L. Parrott, Marvin W. Nielson, Lew E.Wallace, Birely J. Landis, Terry F. Branson, Richard C. Newton, Ralph Mathes, Merrill Cleveland, Ted N. Shaver.

Row 4: Paul A. Stewart, B. Dean Barry, Everett A. Wood, …


Chromogen-Ratio Method For Determining Digestibility Of Plants By Grasshoppers, E. A. Heinrichs, K. P. Pruess Jan 1966

Chromogen-Ratio Method For Determining Digestibility Of Plants By Grasshoppers, E. A. Heinrichs, K. P. Pruess

Department of Entomology: Faculty Publications

The concentration of plant pigments in excreta vs. food provided a measure of digestibility of most plants by grasshoppers. Digestibility values obtained with the chromogen-ratio method and consumption-excretion ratios were highly correlated (r = 0.789**). Greatly disparate results were obtained in 4 cases. The chromogen method, when applicable, gave better duplicability and eliminated many of the errors and much labor associated with consumption-excretion ratios.


Appraisal For Combined Pea Aphid And Spotted Alfalfa Aphid Resistance In Alfalfa, W. L. Howe, W. R. Kehr, C. O. Calkins Feb 1965

Appraisal For Combined Pea Aphid And Spotted Alfalfa Aphid Resistance In Alfalfa, W. L. Howe, W. R. Kehr, C. O. Calkins

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Sources of combined resistance to spotted alfalfa and pea aphids were found in Ranger alfalfa and its parental strains, foreign plant introductions, clones and their progenies. Ranger alfalfa appeared to be a good source for selection of plants with resistance to both aphids.


Dual Low Dosage Applications Of Heptachlor For Control Of The Imported Fire Ant, C. S. Lofgren, C. E. Stringer, Jr., F. J. Bartlett, W. A. Banks, W. F. Barthel Jan 1965

Dual Low Dosage Applications Of Heptachlor For Control Of The Imported Fire Ant, C. S. Lofgren, C. E. Stringer, Jr., F. J. Bartlett, W. A. Banks, W. F. Barthel

Entomology Papers from Other Sources

Control of the imported fire ant, Solenopsis saevissima richteri (Forel), with two applications of heptachlor at dosages of 1/4 or 1/2 pound per acre applied at intervals of 3 or 6 months was reported by Lofgren et al. (1961). Murphy et al. (1962) reported that soil residue following two successive 1/4 pound per acre treatments of heptachlor is equivalent after 10 months to the residue following a single 1 pound per acre treatment.


Seasonal Population Fluctuations And Natural Control Of The Sweetclover Aphid, G. R. Manglitz, R. E. Hill Jul 1964

Seasonal Population Fluctuations And Natural Control Of The Sweetclover Aphid, G. R. Manglitz, R. E. Hill

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Because the potential of the sweetclover aphid for damaging sweetclover is well documented, yet damage occurs only occasionally under field conditions, it would appear that natural factors which depress midsummer populations are important in preventing greater damage and worthy of detailed study. Thus, this study was begun early in 1959 to investigate the natural factors which generally keep populations of this aphid below levels causing economic damage.


Chlorinated Insecticides Fate In Aqueous Suspensions Containing Mosquito Larvae, M. C. Bowman, C. S. Lofgrens, Fred Acree, Jr., Morton Beroza Jan 1964

Chlorinated Insecticides Fate In Aqueous Suspensions Containing Mosquito Larvae, M. C. Bowman, C. S. Lofgrens, Fred Acree, Jr., Morton Beroza

Entomology Papers from Other Sources

Aldrin, p,p’-DDT, dieldrin, gamma chlordane, heptachlor, heptachlor epoxide, 1-hydroxychlordene, and lindane were biassayed against larvae of Anopheles quadrimaculaus Say; the remnant amounts of insecticide and metabolites in larvae and medium were determined by electron-affinity gas chromatography. The insecticides were surprisingly nonpersistant at concentrations normally sued.


New Species Of Proctophyllodes From Bulgaria (Sarcoptiformes, Analgoidea), Warren T. Atyeo, I. D. Vassilev Jan 1964

New Species Of Proctophyllodes From Bulgaria (Sarcoptiformes, Analgoidea), Warren T. Atyeo, I. D. Vassilev

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

Two new species of feather mites are described: Proctophyllodes tenericaulus from Turdus viscivorus L. (Turdidae) and Galerida cristata (L.) (Alaudidae) and Proctophyllodes emberizae from Emberiza melanocephala Scopoli and E. hortulana (L.) (Fringillidae).


Prodromus Of American Bees Of The Genus Andrena (Hymenoptera, Apoidea), Wallace E. Laberge Jan 1964

Prodromus Of American Bees Of The Genus Andrena (Hymenoptera, Apoidea), Wallace E. Laberge

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

Keys to the females and males and diagnoses of the American subgenera of the genus Andrena are presented in this paper. Previously described subgenera recognized in this work are as follows: Callandrena Cockerell, Scaphandrena Lanham, Plastandrena Hedicke, Parandrena Robertson, Dactylandrena Viereck, Andrena Fabricius, Iomelissa Robertson, Oligandrena Lanham, Hesperandrena Timberlake, Micrandrena Ashmead, Gonandrena Viereck, Opandrena Robertson, Cnemidandrena Hedicke, Simandrena Perez, Thysandrena Lanham, Taeniandrena Hedicke, Ptilandrena Robertson, Trachandrena Robertson, Xanthandrena Lanham, Diandrena Cockerell, Leucandrena Hedicke, Melandrena Perez, Gymnandrena Hedicke, Scoliandrena Lanham, Onagrandrena Linsley and MacSwain. The following five new subgenera are described: Eremandrena, Larandrena, Tylandrena, Geandrena, Chaulandrena.


A Review Of The Mites Of The Family Pseudocheylidae Oudemans, 1909 (Acarina, Prostigmata), Edward W. Baker, Warren T. Atyeo Jan 1964

A Review Of The Mites Of The Family Pseudocheylidae Oudemans, 1909 (Acarina, Prostigmata), Edward W. Baker, Warren T. Atyeo

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

Four genera and ten species are included; these are: Pseudocheylus biscalattts Ber1ese, 1888, P. americanus (Ewing), 1909, Stigmocheylus brevisetus Berlese, 1910, Anoplocheylus europaeus (Berlese), 1910, A. clavatus, n. sp., A. aegypticus, n. sp., A. protea (Womersley), 1935, Neocheylus natalensis Tragardh, 1906, N. nidcolus Lawrence, 1954, and N. collis, n. sp.


Tarsocheylidae, A New Family Of Prostigmatic Mites (Acarina), Warren T. Atyeo, Edward W. Baker Jan 1964

Tarsocheylidae, A New Family Of Prostigmatic Mites (Acarina), Warren T. Atyeo, Edward W. Baker

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

The new family is based on two genera, Tarsocheylus Berlese, 1904 and Hoplocheylus, new genus. The species included are: Tarsocheylus paradoxus Berlese, 1904, Hoplocheylus atomarius (Berlese), 1913, H. johnstoni, n. sp., H. aethiopicus (Cooreman), 1951, H. longispinus, n. sp., and H. cliscalis, n. sp.


Effect On Residual And Contact Sprays On The Resistance Of The German Cockroach To Chlordane, G. S. Burden, C. S. Lofgren, J. B. Gahan Jan 1964

Effect On Residual And Contact Sprays On The Resistance Of The German Cockroach To Chlordane, G. S. Burden, C. S. Lofgren, J. B. Gahan

Entomology Papers from Other Sources

When contact sprays are applied for cockroach control, they are dispersed with the expectation that they will kill the insects actually in the room at that time but will have little if any effect on those that enter after the spraying has been completed. Residual sprays, which are applied to stationary objects such as walls or furniture, have the added advantage of also being toxic to those cockroaches that contact the treated surfaces at a later date. If the residual treatments actually kill a greater number of insects, they also may select for resistance at a much higher level and …


Resistance To The Chemical Sterilant, Apholate, In Aedes Aegypti, E. I. Hazard, C. S. Lofgren, D. B. Woodard, H. R. Ford, B. M. Glancey Jan 1964

Resistance To The Chemical Sterilant, Apholate, In Aedes Aegypti, E. I. Hazard, C. S. Lofgren, D. B. Woodard, H. R. Ford, B. M. Glancey

Entomology Papers from Other Sources

lncreased resistance to the sterilizing efects of apholate was observed in two colonies of Aedes aegypti (L.) exposed in the larval stage of each generation to concentrations of apholate that induced about 90 to 40 percent sterility in the eggs laid by the ensuing adults.


Effects Of Food, Temperature, And Oviposition Site On Longevity And Fecundity Of The Army Cutworm, K. P. Pruess Apr 1963

Effects Of Food, Temperature, And Oviposition Site On Longevity And Fecundity Of The Army Cutworm, K. P. Pruess

Department of Entomology: Faculty Publications

Longevity of the army cutworm, Chorizagrotis auxiliaris (Grote), following mating was inversely related to temperature. Females lived longer than males at all temperatures, and food increased longevity of both sexes. Oviposition occurred at 70° and 55° but not at 32° F. None of the variables tested affected total fecundity but oviposition was completed sooner at 70° than at 55°, in sand as an oviposition site vs. paper toweling and by unfed than by fed moths. Starvation preceding oviposition did not affect fecundity but speeded completion of oviposition when moths were returned to favorable conditions.


Studies Of The Mechanisms And Sources Of Spotted Alfalfa Aphid Resistance In Ranger Alfalfa, W. L. Howe, W. R. Kehr, M. E. Mcknight, G. R. Manglitz Mar 1963

Studies Of The Mechanisms And Sources Of Spotted Alfalfa Aphid Resistance In Ranger Alfalfa, W. L. Howe, W. R. Kehr, M. E. Mcknight, G. R. Manglitz

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Mechanisms and sources of spotted alfalfa aphid resistance in Ranger alfalfa and its five parental strains were investigated during 1957-1960.


The Bdellidae (Acarina) Of The Australian Realm, Warren T. Atyeo Jan 1963

The Bdellidae (Acarina) Of The Australian Realm, Warren T. Atyeo

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

Although primarily a systematic study, variations in the integumental striae and chaetotaxy of the legs are discussed. The genus Octobdellodes Atyeo, 1960 is synonymized with Bdellodes Oudemans, 1937 and the sugenus Cytobdella Mihelcic, 1958 is synonymized with Cyta von Heyden, 1826. The genus Bdellodes is divided into the subgenera Bdellodes and Hoploscirus Thor, 1937 (=Thoribdella Grandjean, 1938, new synonymy). Twenty-two species are now known to occur in New Zealand and the outlying islands. These include four known species: Bdella iconica, Bdellodes (Roploscirus) lapidaria, B. (R.) reticulata, and Cyta latirostris, and eighteen new species: Bdellodes (Bdellodes) harpax, B. (B.) oraria, …


New Species And Records Of Little-Known Species Of Melissodes From North America (Hymenoptera: Anthophoridae), Wallace E. Laberge Jan 1963

New Species And Records Of Little-Known Species Of Melissodes From North America (Hymenoptera: Anthophoridae), Wallace E. Laberge

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

Two new species from Mexico, Melissodes (Tachymelissodes) sonorensis and M. (Melissodes) tescorum, are described in this paper. The previously undescribed males of M. cerussata LaBerge and M. baileyi Cockerell are described. Notes concerning the key to species of the subgenus Callimelissodes are given. New records of the following poorly known species of Melissodes are included: M. opuntiella, M. sphaeralcea, M. fimbriata, M. baileyi, M. apicata, M. mitchelli, M. intorta, M. flexa, M. maesta, M. cerussata, M. expolita, M. fasciatella, M. floris, M. …


Deltoptila, A Middle American Genus Of Anthophorine Bees (Hymenoptera, Apoidea), Wallace E. Leberge, Charles D. Michener Jan 1963

Deltoptila, A Middle American Genus Of Anthophorine Bees (Hymenoptera, Apoidea), Wallace E. Leberge, Charles D. Michener

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

A third genus in the tribe Anthophorini in the vI/estern Hemisphere, genus Deltoptila, is described in this work. Previously described species included in the genus are as follows: D. melanopyrrha (Dours), D. elefas (Friese), D. fulva (Smith), D. bombyformis (Smith), D. montezumia (Smith), D. aurulentocaudata (Dours), D. agilis (Smith), D. costaricensis (Friese). New descriptions and records are given for D. montezumia, D. aurulentocaudata, D. agilis and D. costaricensis. Two new species are described: D. afimbriata and D. pexata.


Index Catalogue To Russian, Central And Eastern European, And Chinese Literature In Medical Entomology, Volume 1: Diptera, George Anastes Jan 1963

Index Catalogue To Russian, Central And Eastern European, And Chinese Literature In Medical Entomology, Volume 1: Diptera, George Anastes

United States Naval Medical Research Unit 3: Publications

Over the past several years a large number of references from the USSR, Eastern Europe, and China have been collected dealing with arthropods of medical importance. These references were coded on keysort cards which made it possible to index as many as fifteen subject areas on one card. The usefulness of this indexing system was evident by the number of medical entomologists who used it in searching for references in their specialty. In response to requests from workers in the United States and other countries who did not have ready access to the index. it was decided to publish these …