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Articles 19471 - 19500 of 19773

Full-Text Articles in Life Sciences

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.


Arkansas Avifauna: Some Significant Findings, 1960-1964., Douglas A. James Jan 1964

Arkansas Avifauna: Some Significant Findings, 1960-1964., Douglas A. James

Journal of the Arkansas Academy of Science

No abstract provided.


Problem Of The Hybridization Of The Red Cave Salamander, Eurycea Lucifuga (Raf), And The Long-Tailed Salamander, Eurycea Longicauda Melanopleura (Green), Charles C. Smith Jan 1964

Problem Of The Hybridization Of The Red Cave Salamander, Eurycea Lucifuga (Raf), And The Long-Tailed Salamander, Eurycea Longicauda Melanopleura (Green), Charles C. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


Vermin Control This Month, Department Of Agriculture, Western Australia Jan 1964

Vermin Control This Month, Department Of Agriculture, Western Australia

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

THE effects of the very wet winter are no longer being felt in vermin control activities in most of Western Australia and they have returned to normal.


Poison Plant Problems, T E H Aplin Jan 1964

Poison Plant Problems, T E H Aplin

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

A POISON plant may be defined as a plant which, when eaten by humans or animals, exerts harmful effects or causes death by virtue of its toxic substances.


The Sparrow, John L. Long Jan 1964

The Sparrow, John L. Long

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

SCATTERED widely throughout the world, sparrows are a nuisance wherever they have become established.

Two species have been introduced to Australia—the House sparrow (Passer domesticus) and the Tree sparrow (Passer montanus.)


Seasonal Occurrences Of Arkansas Birds, Douglas A. James, Frances C. James Jan 1964

Seasonal Occurrences Of Arkansas Birds, Douglas A. James, Frances C. James

Journal of the Arkansas Academy of Science

No abstract provided.


Notes On The Natural Habitat Of The Brown Recluse Spider, Loxoseles Reclusa Gertsch And Mulaik, Maxine Hite Jan 1964

Notes On The Natural Habitat Of The Brown Recluse Spider, Loxoseles Reclusa Gertsch And Mulaik, Maxine Hite

Journal of the Arkansas Academy of Science

No abstract provided.


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.


Notes On The Avian Genus Arremonops With Description Of A New Subspecies From Honduras, Burt L. Monroe Jr. Dec 1963

Notes On The Avian Genus Arremonops With Description Of A New Subspecies From Honduras, Burt L. Monroe Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Relationships And Taxonomic Status Of The North American Natricine Snake Genera Liodytes, Regina, And Clonophis, Douglas A. Rossman Dec 1963

Relationships And Taxonomic Status Of The North American Natricine Snake Genera Liodytes, Regina, And Clonophis, Douglas A. Rossman

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A Revision Of The Lampornis Viridipallens Complex (Aves: Trochilidae), Burt L. Monroe Jr. Dec 1963

A Revision Of The Lampornis Viridipallens Complex (Aves: Trochilidae), Burt L. Monroe Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A New Race Of Centurus Aurifrons (Aves: Picidae) From British Honduras, Stephen M. Russell Dec 1963

A New Race Of Centurus Aurifrons (Aves: Picidae) From British Honduras, Stephen M. Russell

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A New Carolina Wren (Aves: Troglodytidae) From Southern Mexico, George H. Lowery Jr., Delwyn G. Berrett Dec 1963

A New Carolina Wren (Aves: Troglodytidae) From Southern Mexico, George H. Lowery Jr., Delwyn G. Berrett

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Three New Subspecies Of Birds From Honduras, Burt L. Monroe Jr. Dec 1963

Three New Subspecies Of Birds From Honduras, Burt L. Monroe Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Effects Of Beaver On Stream Flow And Water Quality, James W. Bates May 1963

Effects Of Beaver On Stream Flow And Water Quality, James W. Bates

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water, one of the major resources of the western lands, controls the economy and expansion of the communities. Industry, agriculture, timber, livestock, game and home water needs are all dependent upon a steady and continued flow of water from wells, springs, and rivers. Water is derived from one source, precipitation, which occurs in the form of rain and snow. Watersheds which are properly managed accumulate a substantial snow pack during the winter which is the life-giving source of water for our springs.

The Utah Water and Power Report (1948) indicates the annual precipitation over the entire state of Utah averaged …


Habitat Specificity In Land Snails, John C. Coulter, Glen L. White, Frank G. Nordlie Jan 1963

Habitat Specificity In Land Snails, John C. Coulter, Glen L. White, Frank G. Nordlie

Journal of the Minnesota Academy of Science

No abstract provided.


The Sparrow Invasion Of 1962, C D. Gooding, C. R. Walton Jan 1963

The Sparrow Invasion Of 1962, C D. Gooding, C. R. Walton

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

During late 1962 and early 1963, a report that sparrows were at large in the metropolitan area close to Perth drew intense public interest.

This article gives some facts about the reported sightings.


The Webworm. 1. The Webworm In Its Natural Environment, J A. Button Jan 1963

The Webworm. 1. The Webworm In Its Natural Environment, J A. Button

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

MANY farmers are concerned about the apparent increase in webworm numbers in recent years.

It has been suggested that the problem is now more widespread and the outbreaks more regular than a few years ago.


The Webworm. 3. Ecology : A Report On Some Of The Factors Which Regulate Webworm Numbers In The Field, J A. Button Jan 1963

The Webworm. 3. Ecology : A Report On Some Of The Factors Which Regulate Webworm Numbers In The Field, J A. Button

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

IN this section the webworm will be examined in its environment, and particular attention will be given to the more important factors which govern numbers and distribution of the insects.


Literature On The Vegetation Of Arkansas, Edward E. Dale Jr. Jan 1963

Literature On The Vegetation Of Arkansas, Edward E. Dale Jr.

Journal of the Arkansas Academy of Science

No abstract provided.


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, …


Ant Pests In Western Australia, Clee Francis Howard Jenkins Jan 1963

Ant Pests In Western Australia, Clee Francis Howard Jenkins

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

THERE are many different species of native ants in Western Australia, but few of these are of major economic importance.

Several introduced species however, have spread extensively and have proved troublesome both as agricultural and household pests.


Spraying For Grasshopper Control, T J. Tozer Jan 1963

Spraying For Grasshopper Control, T J. Tozer

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

A BIG increase in cereal growing in the "hopper" belt has brought a general improvement in the grasshopper situation over the past few years.

This highlights the emphasis entomologists have placed on cultivation as the best known way of controlling grasshoppers.


Wallaby Control In The Kimberleys, C D. Gooding Jan 1963

Wallaby Control In The Kimberleys, C D. Gooding

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

EXPERIMENTS aimed at controlling sandy wallabies along the Fitzroy River frontage were started in 1952 by officers of the Agriculture Protection Board.

This work was undertaken in response to requests for assistance from some of the station owners and managers between Derby and Fitzroy Crossing.


Milking Routine, G R. Olney Jan 1963

Milking Routine, G R. Olney

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

IT is well known that the condition of the milking machine is important for efficient and hygienic milking, but even with a machine in good condition good management during the milking process plays a leading part.


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.


Water For Agriculture. 6. Control Of Algae In Water Supplies, R C. Gorman Jan 1963

Water For Agriculture. 6. Control Of Algae In Water Supplies, R C. Gorman

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

ALGAE are primitive forms of plant life that are common and normal in surface waters. They are fonnd in every water supply exposed to sunlight.

Their presence is not normally detectable until there are enough of them to make their presence obvious.