Taxonomy of the Genus Cecidomyia (Diptera: Cecidomyiidae) with Special Reference to the Species Occurring on Pinus banksiana Lamb

1960 ◽  
Vol 92 (1) ◽  
pp. 65-79 ◽  
Author(s):  
J. R. Vockeroth
Keyword(s):  
North America ◽  
Special Reference ◽  
Pinus Banksiana ◽  
Jack Pine ◽  
Regional Research ◽  
Department Of Agriculture ◽  
The Past ◽  
Canada Department ◽  
Forest Biology ◽  
Subjective Synonym

Several species of resin midges (or pine-pitch midges) have been recorded from species of Pinus in North America. These are all at present referred to the genus Retinodiplosis Kieffer 1912; for reasons given below this genus is here treated as a subjective synonym of Cecidomyia Meigen 1803. At least two species of Cecidomyia have been recorded from jack pine, Pinus banksiana Lamb., in Ontario, Manitoba, Saskatchewan and Michigan (Bradlev (1946), Barker and Wong (1948), anonymous (1946), Prentice and Hildahl (1957, 1958) and Mc-Daniel (1938)); they were sometimes determined as Retinodiplosis sp., sometimes tentatively or definitely as R. resinicola (O.S.). Study of specimens of Cecidomyia from P. banksiana collected during the past three years by officers of the Forest Biology Regional Research Laboratories, Canada Department of Agriculture, has shown that three species of the genus occur on this host. All three are described as new in this paper. C. resinicola (O.S.) 1871, originally described from Virginia pine, Pinus virginiana Mill., was not present in this material nor among Michigan specimens from P. banksiana in the U.S.N.M.; it almost certainly does not occur on P. banksiana.

A New Species of the Genus Eurytoma (Hymenoptera: Eurytomidae) Phytophagous in the Buds of Jack Pine (Pinus banksiana)

1961 ◽  
Vol 93 (1) ◽  
pp. 33-34 ◽  
Author(s):  
Robert E. Bugbee
Keyword(s):  
New Species ◽  
North America ◽  
Pinus Banksiana ◽  
Jack Pine ◽  
Valuable Contribution ◽  
Department Of Agriculture ◽  
North America North ◽  
A New Species ◽  
Research Institute

In the spring of 1959, Dr. O. Peck of the Entomology Research Institute, Department of Agriculture, Ottawa, Canada, sent to me a long series of Eurytoma specimens for determination. Dr. J. B. Thomas reared the series from buds of jack pine (Pinus banksiana) and is ready to publish on the biology of the species. This new species has been included in a projected revision of the genus Eurytoma in North America, north of Mexico, but due to the uncertainty as to just when it will be ready for publication, it seems best to publish the description concurrently with the paper by Dr. Thomas, so as not to hold up 'his valuable contribution to the biology of the species.

Davisomycella ampla. [Descriptions of Fungi and Bacteria].

1978 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Pinus Banksiana ◽  
Jack Pine ◽  
Pine Needle ◽  
Needle Blight

Abstract A description is provided for Davisomycella ampla. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pinus banksiana, P. contorta, P. strobus, P. pinaster, P. radiata. DISEASE: Jack pine needle blight. GEOGRAPHICAL DISTRIBUTION: North America (USA, Canada); South America (Brazil); New Zealand. TRANSMISSION: By air-borne ascospores.

Pissodes terminalis. [Distribution map].

2006 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
North America ◽  
South Dakota ◽  
Northwest Territories ◽  
Geographical Distribution ◽  
Pinus Banksiana ◽  
Pinus Contorta ◽  
Jack Pine ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Pissodes terminalis Hopping. Coleoptera: Curculionidae. Hosts: Jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta). Information is given on the geographical distribution in North America (Canada, Alberta, British Columbia, Manitoba, Northwest Territories, Saskatchewan, Yukon, USA, California, Colorado, Idaho, Montana, Oregon, South Dakota, Washington, Wyoming).

Insects of Potential Economic Importance New to Canada, 1954: a Review

1957 ◽  
Vol 89 (3) ◽  
pp. 140-144 ◽  
Author(s):  
C. G. MacNay
Keyword(s):  
British Columbia ◽  
North America ◽  
New Records ◽  
Plant Protection ◽  
Insect Pest ◽  
Economic Importance ◽  
Progress Report ◽  
Sources Of Information ◽  
Department Of Agriculture ◽  
Forest Biology

A considerable number of insect species of potential economic importance new to Canada, some being new to North America, have been recorded in the Canadian Insect Pest Survey since new records were reviewed (McNay, 1955). These and others, mainly from 1954 records, are brought together in this paper. Two new mire species are included. Sources of information include Survey reports from officers of the Entomology and Plant Protection divisions, provincial entomologists, and other co-operators; The Canadian Entomologist; The Canadian Insect Pest Review; Proceedings of the Entomological Society of British Columbia; and the Bi-monthly Progress Report of the Forest Biology Division, Canada Department of Agriculture.

The Biology of a Hyperparasite, Euceros frigidus Cress. (Ichneumonidae) and Description of the Planidial Stage

1961 ◽  
Vol 93 (1) ◽  
pp. 40-58 ◽  
Author(s):  
Howard A. Tripp
Keyword(s):  
Pinus Banksiana ◽  
Jack Pine ◽  
Life Cycles ◽  
Sufficient Information ◽  
Immature Stages ◽  
Primary Object ◽  
Forest Biology ◽  
Biology Laboratory ◽  
Overall Mortality

For more than a decade the sawfly, Neodiprion swainei Midd., has been a serious defoliator of jack pine, Pinus banksiana Lamb., in the Province of Quebec. In 1955 an intensive research program involving several research officers was initiated at the Forest Biology Laboratory, Quebec, to study the insect. Investigations began near the centre of the infestation at the headwaters of the Gatineau River (47° 55′N., 75° 25′W.). The project dealing with the parasites became the responsibility of the author and constituted approximately 25 pcr cent of the total investigations. Integrated with this project were studies on population dynamics, effect of defoliation on jack pine, and predators of the sawfly with emphasis on the small mammals. The primary object of the parasite studies was to concentrate on the life cycles and descriptions of the immature stages and to publish on each species as sufficient information was obtained. Ultimately, it is planned to publish jointly with other members of the team on the role of parasites in the overall mortality complex of Neodiprion swainei.

A new species of Casinaria from British Columbia (Hymenoptera: Ichneumonidae)

1959 ◽  
Vol 91 (9) ◽  
pp. 565-566 ◽  
Author(s):  
G. Stuart Walley
Keyword(s):  
British Columbia ◽  
New Species ◽  
Department Of Agriculture ◽  
Considerable Distance ◽  
Canada Department ◽  
Lateral Ocellus ◽  
Forest Biology ◽  
A New Species

Recent rearings of the geometrid Melanolophia imitata (Wlk.) by officers of the Vernon and Victoria, B.C., laboratories of the Forest Biology Division, Canada Department of Agriculture, have yielded a series of a new species of Casinaria for which the following description is offered.Casinaria melanolophiae, new speciesFemale. Length 7 mm. Head thin, temple rather weakly receding for a considerable distance behind eye, and beyond rather strongly rounded to occiput; antenna with 29-31 segments, the shortest flagellar segments at least a little longer than broad; cheek short, about 0.30 breadth of base of mandible; ocelli large; greatest diameter of lateral ocellus twice as great as ocellocular space and three-fourths as great as post-ocellar line; head and thorax dullish, with granular sculpture; mesoscutum and scutellum densely, shallowly punctate, with punctures somewhat obscured by granular sculpture; sides of thorax finely granular and with only a few minute punctures; propodeum and abdomen as in C. semiothisae Wly.

BIOGEOGRAPHY OF JACK PINE

1967 ◽  
Vol 45 (11) ◽  
pp. 2201-2211 ◽  
Author(s):  
C. W. Yeatman
Keyword(s):  
North America ◽  
Pinus Banksiana ◽  
Pinus Contorta ◽  
Geographic Origin ◽  
Glacial Refugia ◽  
Jack Pine ◽  
Hybrid Swarms ◽  
Late Tertiary ◽  
History Of ◽  
Probable Origin

Interpretation of genetic variation associated with geographic origin must take into account the evolution and migratory history of the species being-studied. A literature survey was made to determine the probable origin of jack pine (pinus banksiana) and its migration from glacial refugia following the Wisconsin glacial maximum. Jack pine and contorta pine (Pinus contorta) became differentiated following cooling of the climate and crustal uplift in western North America in the late Tertiary. Modern hybrid swarms and introgression of jack pine and lodgepole pine (Pinus contorta var. lalifolia) east of the Rocky Mountains are of recent origin, dating from late post-glacial migration from the east and west respectively. Geological and paleobotanical evidence, particularly from fossil pollen depositions, indicate that jack pine survived glaciation in an extensive refugium centered on the Appalachian Highlands of eastern North America, and not in additional refugia south or west of the Great Lakes. This conclusion is consistent with the clinal pattern of geographic variation evident from genecological studies of the species.

Listeria Methods Development Research at the Eastern Regional Research Center, U.S. Department of Agriculture

1988 ◽  
Vol 71 (3) ◽  
pp. 651-654
Author(s):  
Robert L Buchanan ◽  
James L Smith ◽  
Heidi G Stahl ◽  
Deborah L Archer
Keyword(s):  
Research Center ◽  
Blue Color ◽  
Regional Research ◽  
Department Of Agriculture ◽  
Eastern Regional Research ◽  
The Past ◽  
Methods Development ◽  
Reflected Light ◽  
Stressed Cells ◽  
Eastern Regional

Abstract Listeria methods research at the U.S. Department of Agriculture, Eastern Regional Research Center, has concentrated on 2 areas during the past year. The first was development of techniques for assessing isolation methods for their ability to detect sublethally stressed cells. It appears that a number of widely used media do not accurately detect Listeria that have been injured by thermal processing or acidification. The second was development of improved plating media. One, modified Vogel-Johnson agar, shows promise; it is highly selective and quantitative, and eliminates the need to select colonies on the basis of a blue color when illuminated with reflected light

scholarly journals Remnant and the New Dark Age

Religions ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 372
Author(s):  
Edward Rommen
Keyword(s):  
North America ◽  
Moral Discourse ◽  
The Past ◽  
Personal Opinion

A new dark age has come upon us; as a result, Christianity and its churches in North America are no longer growing. One reason for this might be the widespread impression that Christians are hypocrites, saying they believe one thing while doing the opposite. However, that accusation would only be true if these believers actually believed the principles they are supposed to be violating. It is more likely that many Christians have, like those around them, abandoned truth in favor of personal opinion bringing moral discourse to a near standstill and intensifying the darkness by extinguishing the light of truth. Still, there is hope. In the past, it often was a faithful few, a remnant, who preserved the knowledge of that light and facilitated a new dawn. History shows us that the very movements that are today abdicating responsibility were once spiritual survivors themselves. They withdrew, coalesced around the remaining spark of truth in order to remember, preserve, and reignite. The thoughts and practices of these pioneers could guide the escape from today’s darkness.

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