DESCRIPTIONS OF EASTERN NORTH AMERICAN SPECIES OF BAETINE MAYFLIES WITH PARTICULAR REFERENCE TO THE NYMPHAL STAGES

1937 ◽  
Vol 69 (10) ◽  
pp. 219-231 ◽  
Author(s):  
F. P. Ide
Keyword(s):  
North American ◽  
Wide Distribution ◽  
North American Species ◽  
The Future

During the course of investigation of the mayfly fauna in streams in Ontario and Quebec it became apparent that many of the nymphs of the Baetinae are not known although the adults of most have been named. A few nymphs are described in scattered papers in the literature and a key has been made for some Baetis and Pseudocloeon (McDunnough 1932, 1932a) which satisfactorily separates groups within these genera. It would seem that in work on streams in the future these small mayflies would become increasingly important because of their abundance and wide distribution.

scholarly journals THE NORTH AMERICAN SPECIES OF GNATHODUS

1896 ◽  
Vol 28 (2) ◽  
pp. 35-42 ◽  
Author(s):  
Carl F. Baker
Keyword(s):  
United States ◽  
North American ◽  
The United States ◽  
Wide Distribution ◽  
North American Species ◽  
Characteristic Appearance ◽  
The North ◽  
Apical Cells

The genus Gnathodus, as at present accepted, includes forms closely allied to Cicadula, but differing in having only two apical cells in the wing. They are of a weaker build than species of Cicadula, and a characteristic appearance from above makes them readily distinguishable from any of that genus. The species are very variable and difficult to define. They are small, more or less slender, greenish, yellowish, or whitish Jassids, usually without distinct markings. The ocelli are distant from the eyes. The clypeus usually somewhat exceeds the genæ. The ovipositor rarely exceeds the pygofers. In the United States at least, most of the species are of very wide distribution.

scholarly journals Occurrence of Rosa blanda Ait. (Rosaceae) in Poland

2020 ◽  
pp. 25-33
Author(s):  
Anna Sołtys-Lelek ◽  
Wojciech Gruszka
Keyword(s):  
North American ◽  
North American Species ◽  
Northwestern Part ◽  
Native Flora ◽  
Non Invasive ◽  
The Future ◽  
The Status

The article presents the Smooth rose, Rosa blanda Ait. distribution in Poland based on literature data, available herbarium materials, and shared unpublished data. R. blanda is a North American species that is cultivated and has become wild throughout Poland, where it has the status of a domestic, non-invasive kenophyte. This species is rare in Poland. Only 22 sites have been identified (mainly in the central and northwestern part of the country), as created spontaneously or as remaining from old, local cultivations. However, it cannot be excluded that this species will become invasive in the future and will negatively affect native flora species, especially through its ability to cross with other rose species (including invasive R. rugosa Thunb.).

scholarly journals “The Future of Archaeology Is Antiracist”: Archaeology in the Time of Black Lives Matter

2021 ◽  
pp. 1-20
Author(s):  
Ayana Omilade Flewellen ◽  
Justin P. Dunnavant ◽  
Alicia Odewale ◽  
Alexandra Jones ◽  
Tsione Wolde-Michael ◽  
...  
Keyword(s):  
United States ◽  
North American ◽  
The United States ◽  
Heritage Preservation ◽  
Social Unrest ◽  
Black Lives Matter ◽  
The North ◽  
Road Map ◽  
The Social ◽  
The Future

This forum builds on the discussion stimulated during an online salon in which the authors participated on June 25, 2020, entitled “Archaeology in the Time of Black Lives Matter,” and which was cosponsored by the Society of Black Archaeologists (SBA), the North American Theoretical Archaeology Group (TAG), and the Columbia Center for Archaeology. The online salon reflected on the social unrest that gripped the United States in the spring of 2020, gauged the history and conditions leading up to it, and considered its rippling throughout the disciplines of archaeology and heritage preservation. Within the forum, the authors go beyond reporting the generative conversation that took place in June by presenting a road map for an antiracist archaeology in which antiblackness is dismantled.

NOTES ON THE GENUS PROTARCHOIDES (HYMEN., ICHNEUMONIDAE)

1938 ◽  
Vol 70 (11) ◽  
pp. 230-232 ◽  
Author(s):  
C. Stuart Walley
Keyword(s):  
North American ◽  
North American Species ◽  
Close Relationship ◽  
Relationship Of

The following notes were assembled in arranging the Protarchoides material in the National Collection. In establishing the identity of Protarchoides mellipes (Prov.) it has been found necessary to synonymize one species. A species allied to mellipes is described as new and a table is provided for the separation of the four known North American species. The recording of Trichiosoma as host for a member of this genus is further evidence of the close relationship of the genus with Protarchus Foer.

The North American Species in Group VII of Ips De Geer (Coleoptera: Scolytidae)

1965 ◽  
Vol 97 (2) ◽  
pp. 193-198 ◽  
Author(s):  
G. R. Hopping
Keyword(s):  
United States ◽  
New Species ◽  
North American ◽  
North American Species ◽  
The North ◽  
Northern United States

AbstractGroup VII of North American Ips contains I. thomasi, new species, I. borealis Swaine and I. swainei R. Hopping. They are less than 4.0 mm. long and females have the front of the head or at least the vertex smooth and shining, impunctate, or with very fine sparse punctures; males are more coarsely granulate-punctate on the frons. The species are described and a key is given. All breed in Picea in Canada and northern United States.

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