Classification of the North American species of Atriplex section Obione (Chenopodiaceae) based on numerical taxonomic analysis

Taxon ◽  
2003 ◽  
Vol 52 (2) ◽  
pp. 247-266 ◽  
Author(s):  
Hilda Flores Olvera
Keyword(s):  
North American ◽  
North American Species ◽  
Taxonomic Analysis ◽  
The North

The Classification of Larval Tabanidae

1964 ◽  
Vol 96 (1-2) ◽  
pp. 159-159
Author(s):  
H. J. Teskey
Keyword(s):  
Life History ◽  
North American ◽  
Life Histories ◽  
North American Species ◽  
Immature Stages ◽  
Larval Habitats ◽  
The North

Relatively little is known of the life history, ecology and behaviour of most species of Tabanidae. Knowledge of their immature stages is particularly deficient. The larvae of only 46, or about ⅛, of the North American species have been described and many of these descriptions are inadequate. The present research was initiated in 1960 to describe and classify tabanid larvae and to contribute information on larval habitats and life histories.

REVISION OF NORTH AMERICAN AGABUS LEACH (COLEOPTERA: DYTISCIDAE): INTRODUCTION, KEY TO SPECIES GROUPS, AND CLASSIFICATION OF THE AMBIGUUS-, TRISTIS-, AND ARCTICUS-GROUPS

1989 ◽  
Vol 121 (10) ◽  
pp. 861-919 ◽  
Author(s):  
D.J. Larson
Keyword(s):  
North America ◽  
North American ◽  
North American Species ◽  
Key To Species ◽  
Diagnostic Characters ◽  
Ecological Information ◽  
The North ◽  
Species Groups ◽  
Diving Beetle

AbstractThe first of a planned series of papers revising the Nearctic species of the predaceous diving beetle genus, Agabus Leach, is presented. The genus is defined in the broad sense of Sharp (1882) and Fall (1922). The North American species are divided into species groups and diagnostic characters for group recognition are summarized in a key. Assignment of species to these groups is indicated in a checklist of North American species. The ambiguus-, tristis-, and arcticus-groups are defined, their relationships discussed, and included species revised. The ambiguus-group, which is restricted to North America, contains the species A. ambiguus (Say), A. strigulosis (Crotch), A. erythropterus (Say), A. austinii Sharp, and A. klamathensis sp.nov. The tristis-group, which has a Holarctic distribution, contains two species in North America, A. tristis Aubé and A. leptapsis (LeConte). The Holarctic arcticus-group is represented by A. arcticus (Paykull) and A. anthracinus (Mannerheim) in North America. For each species, patterns of variation are described, the North American distributions mapped, and ecological information summarized.

scholarly journals Cortinarius subgenus Leprocybe, unexpected diversity and significant differences in species compositions between western and eastern North America

2021 ◽  
Author(s):  
J. Ammirati ◽  
K. Liimatainen ◽  
D. Bojantchev ◽  
U. Peintner ◽  
R. Kuhnert-Finkernagel ◽  
...  
Keyword(s):  
North America ◽  
North American ◽  
Molecular Data ◽  
North American Species ◽  
Eastern North America ◽  
Type Specimens ◽  
European Species ◽  
The North ◽  
Morphological And Molecular Data

The focus of this paper is the North American species of Cortinarius in subg. Leprocybe. Eighteen species, including twelve new ones, and two tentative (aff.) species, are delimited based on morphological and molecular data (DNA ITS-LSU sequences). Existing type specimens of species in subg. Leprocybe were also studied, and neo- or epitypes designated for C. cotoneus, C. melanotus, C. phrygianus and C. venetus to stabilize the nomenclature. In addition, to improve the infrasubgeneric classification of Leprocybe three new sections are proposed: sect. Fuscotomentosi, sect. Melanoti and sect. Squamiveneti. This study adds substantial information to the knowledge of subg. Leprocybe in North America against a background of European species. To date only two species, C. phrygianus and C. squamivenetus have been reported from both continents.

The phlogosaria Complex of the Genus Plagodis (Lepidoptera: Geometridae)

1959 ◽  
Vol 91 (4) ◽  
pp. 193-208 ◽  
Author(s):  
E. G. Munroe
Keyword(s):  
North American ◽  
Distinct Species ◽  
North American Species ◽  
Summer Generation ◽  
The North ◽  
Spring Generation

Rupert's excellent revision (1949) has greatly clarified the classification of the North American species of P1agodis. One of the most interesting features of Rupert's work was his demonstration by rearing that what had previously been considered a distinct species, P1agodis keutzingaria Packard, was in fact the spring generation of the aestival P. phlogosmia Guenée. By analogy it followed that P. schuylkillensis Grossbeck must be considered the summer generation of P. purpuraria Pearsall and P. arrogaria Hulst that of P. fervidaria Herrich-Schaeffer. Rupert was thus able to group in three species elements that had previously been distributed among six.

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.

Synopsis of the North American Species of Xylaria and Poronia (Continued)

1887 ◽  
Vol 3 (10) ◽  
pp. 109 ◽  
Author(s):  
J. B. Ellis ◽  
B. M. Everhart
Keyword(s):  
North American ◽  
North American Species ◽  
The North

A SYNOPSIS OF THE NORTH AMERICAN SPECIES OF SYNDIPNUS (HYMEN., ICHNEUMONIDAE)

1940 ◽  
Vol 72 (7) ◽  
pp. 135-145 ◽  
Author(s):  
G. Stuart Walley
Keyword(s):  
United States ◽  
North American ◽  
The United States ◽  
North American Species ◽  
National Museum ◽  
United States National Museum ◽  
The North

As noted below the two North American species described in Syndipnus by workers appear to belong in other genrra. In Europe the gunus is represented by nearly a score of species and has been reviewed in recent years by two writers (1, 2). North American collections contain very few representatives of the genus; after combining the material in the National Collection with that from the United States National Museum, the latter kindly loaned to me by Mr. R. A. Cushman, only thirty-seven specimens are available for study.

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