A REVIEW OF THE NORTHERN HEMISPHERE APHRODINA (RHYNCHOTA: HOMOPTERA: CICADELLIDAE), WITH SPECIAL REFERENCE TO THE NEARCTIC FAUNA

1975 ◽  
Vol 107 (10) ◽  
pp. 1009-1027 ◽  
Author(s):  
K. G. A. Hamilton

AbstractThe subtribe Aphrodina of the Aphrodini is an essentially Palaearctic group with eight Nearctic species, of which six are apparently all recently introduced from Europe to North America. The subtribe comprises four genera: Aphrodes Curtis with six species, Planaphrodes n. gen. with 15 species, Stroggylocephalus Flor with four species, and Anoscopus Kirschbaum with nine species.The genera and species of the Nearctic Region are keyed, and notes are provided on North American literature pertaining to distribution, nomenclature, and the earliest records of the introduced species. The northern hemisphere species are illustrated, and their apparent relationships are discussed.By type examination, the synonymy of Cicada rustica Fabricius 1775 with Aphrophora salicis (DeGeer) 1773 is confirmed and the following new synonymies are established: Acucephalus circumflexus Provancher 1889 = Anoscopus albiger (Germar) 1821; Acocephalus bifasciatus nigricans Matsumura 1912 = Planaphrodes sahlbergi (Signoret) 1879; and Acucephalus bifasciatus guttatus Matsumura 1912 = Planaphrodes japonica (Dlabola) 1960, as Planaphrodes guttata (Mm.). An index of all usages of trivial names in the Aphrodina is given.

Zootaxa ◽  
2018 ◽  
Vol 4430 (1) ◽  
pp. 1
Author(s):  
WILLIAM L. MURPHY ◽  
WAYNE N. MATHIS ◽  
LLOYD V. KNUTSON

Genera and species of Sciomyzidae known from the Delmarva region (Delaware, the District of Columbia, Maryland, Virginia, and West Virginia) and nearby states are reviewed taxonomically, faunistically, biologically, and geographically. Although restricted to the taxa in that area, this work amounts to a revision of the sciomyzid fauna of that portion of the Nearctic region. Treated are 91 species in 19 genera, i.e. 46% of the 199 species and all but four of the 23 genera of Sciomyzidae known from the Nearctic Region. Included are 67 species in 16 genera from Delmarva and 24 other species in 10 genera from nearby states. Euthycera flavescens (Loew) is resurrected; Renocera cressoni Mathis and Knutson sp. nov. is described from eastern North America; R. amanda Cresson is given new status as a junior synonym of R. longipes (Loew); and Chaetomacera brevis Cresson, R. cyathiformis Melander, R. pacifica Curran, and R. bergi Steyskal are given new status as junior synonyms of R. striata (Meigen). Newly diagnosed are taxonomic categories ranging from family to species level, including the first diagnoses of abdomens of females of many species, where known. Provided for each genus and species are annotated taxonomic/nomenclatorial catalogs of all North American references to all species, with generic combinations noted, with previously unrecorded synonymies as well as North American literature references, illustrations, and information on natural history and morphology of immature stages. Results of cross-mating studies of Dictya are reported and discussed. Provided are label data from examined specimens, lists of Canadian provinces and U.S. states from which reviewed species have been recorded, and detailed maps of geographical distribution of species in Delmarva, with references to previously published maps. 


Zootaxa ◽  
2010 ◽  
Vol 2448 (1) ◽  
pp. 35 ◽  
Author(s):  
IAN P. SWIFT ◽  
ANN M. RAY

The following nomenclatural changes to the genus Phymatodes Mulsant, 1839 are proposed: P. juglandis Leng, 1890 = P. decussatus (LeConte, 1857); P. mohavensis Linsley and Chemsak, 1963 = P. nitidus LeConte, 1874; P. lecontei Linsley, 1938 (a replacement name) = P. grandis Casey, 1912; P. oregonensis Chemsak, 1963 = P. nigrescens Hardy and Preece, 1927; P. blandus picipes Linsley, 1934 and P. blandus propinquus Linsley, 1934 = P. blandus (LeConte, 1859); P. hirtellus densipennis Casey, 1912 and P. ursae Knull, 1940 = P. hirtellus (LeConte, 1873); P. decussatus australis Chemsak, 1963 and P. decussatus posticus Van Dyke, 1920 = P. obliquus Casey, 1891; P. frosti Casey, 1924, a valid name which has not previously been mentioned in the literature = P. dimidiatus (Kirby in Richardson, 1837); P. concolor Linsley, 1934 is afforded full species status; P. lividus (Rossi, 1794) is formally recorded as established in North America. A key and diagnoses for all native and introduced North American species are provided, which include the more recently described species, P. tysoni Linsley and Chemsak, 1984, and P. shareeae Cope, 1984, in addition to the introduced species P. lividus.


1988 ◽  
Vol 120 (S144) ◽  
pp. 13-24 ◽  
Author(s):  
William L. Peters

AbstractThe complex origins of the North American Ephemeroptera fauna extended from the Lower Permian to the Recent. This paper discusses origins of North American genera of the cosmopolitan family Leptophlebiidae with a few examples from other mayfly families. The two extant subfamilies, Leptophlebiinae and Atalophlebiinae, probably evolved at least by the mid-Cretaceous, or about 100 million years before present. The primitive Leptophlebiinae are distributed throughout most of the Northern Hemisphere and the ancestors of the Leptophlebia–Paraleptophlebia complex within this subfamily dispersed widely by the North Atlantic route as early as the mid-Cretaceous and later probably by northern trans-Pacific dispersals through Beringia. The ancestors of Habrophlebia dispersed through the North Atlantic route at an early time, but the vicariant distribution of Habrophlebiodes in several areas of the Oriental Region and eastern North America correlates with the Arcto-Tertiary forest that covered most of the Northern Hemisphere including Beringia from the Early Tertiary into the Pleistocene. Within the nearly cosmopolitan Atalophlebiinae, Traverella is austral in origin and probably dispersed north through the Mexican Transition Zone during the mid-Tertiary as an ancient dispersal and then dispersed to its northern and eastern limits following the last Pleistocene deglaciation by way of the Missouri River tributaries. Thraulodes and Farrodes are both austral in origin and probably dispersed north through the Mexican Transition Zone during the Early Pleistocene as a relatively recent dispersal. The origins of Choroterpes sensu stricto and Neochoroterpes in North America are unknown. The mayfly fauna of the West Indies is Neotropical in origins, and no affinities between the West Indies and North America through Florida have ever been confirmed.


2001 ◽  
Vol 79 (2) ◽  
pp. 154-169 ◽  
Author(s):  
Félix Forest ◽  
Josée Nadia Drouin ◽  
René Charest ◽  
Luc Brouillet ◽  
Anne Bruneau

The hippocastanaceous Sapindaceae (family Hippocastanaceae) consists of two genera: Aesculus and Billia. The genus Aesculus (buckeyes) is distributed throughout the northern hemisphere. Twelve of the thirteen species of Aesculus are found in eastern Asia and North America, and one is native to Europe. The two species of the genus Billia are found in South and Central America. Aesculus is traditionally divided into five sections. This analysis, based on morphological characters, suggests that the monotypic section Parryanae (Aesculus parryi Gray) is sister to the remainder of the genus, and the other species are divided into two clades. One clade comprises all species from southeastern North America with the monotypic section Macrothyrsus (Aesculus parviflora Walt.) as sister to section Pavia. The other clade consists of all species found in Eurasia included in sections Aesculus and Calothyrsus, with the only North American member of this clade (Aesculus californica (Spach) Nutall) as sister to the rest of the group. According to this analysis, section Calothyrsus is rendered paraphyletic by the inclusion of section Aesculus. In contrast to previous studies that suggest an Asian origin for the genus, our study suggests an American origin for Aesculus from an ancestor similar to Billia with a single migration to Eurasia via the Bering land bridge.Key words: Aesculus, Billia, character evolution, Hippocastanaceae, morphology, phylogeny, Sapindaceae.


2019 ◽  
Vol 32 (18) ◽  
pp. 5799-5814 ◽  
Author(s):  
Nicholas J. Lutsko ◽  
Jane Wilson Baldwin ◽  
Timothy W. Cronin

Abstract The impact of large-scale orography on wintertime near-surface (850 hPa) temperature variability on daily and synoptic time scales (from days to weeks) in the Northern Hemisphere is investigated. Using a combination of theory, idealized modeling work, and simulations with a comprehensive climate model, it is shown that large-scale orography reduces upstream temperature gradients, in turn reducing upstream temperature variability, and enhances downstream temperature gradients, enhancing downstream temperature variability. Hence, the presence of the Rockies on the western edge of the North American continent increases temperature gradients over North America and, consequently, increases North American temperature variability. By contrast, the presence of the Tibetan Plateau and the Himalayas on the eastern edge of the Eurasian continent damps temperature variability over most of Eurasia. However, Tibet and the Himalayas also interfere with the downstream development of storms in the North Pacific storm track, and thus damp temperature variability over North America, by approximately as much as the Rockies enhance it. Large-scale orography is also shown to impact the skewness of downstream temperature distributions, as temperatures to the north of the enhanced temperature gradients are more positively skewed while temperatures to the south are more negatively skewed. This effect is most clearly seen in the northwest Pacific, off the east coast of Japan.


1961 ◽  
Vol 93 (6) ◽  
pp. 450-455 ◽  
Author(s):  
Leonard A. Kelton

Recent study of the male genitalia in the Miridae (Kelton, 1959) showed that the Palearctic Stenodema virens (L.) does not occur in North America. The six other species that have been reported in the North American literature are: dorsolis (Say), vicinum (Prov.), trispinosum Reut., sequoiae Bliven, falki Bliven, and imperii Bliven. The three species described by Bliven (1955, 1958) were not available to me for study, however, Bliven (1960) has recently published a paper containing figures of the male genital claspers of these species. These appear to differ considerably from those of virens, vicinum and trispinosum as well as amongst themselves.


Phytotaxa ◽  
2015 ◽  
Vol 219 (3) ◽  
pp. 243 ◽  
Author(s):  
Nawal Shrestha ◽  
Xian-Chun Zhang

The North American shining clubmoss, Huperzia lucidula, was originally thought to be endemic to North America. However it was reported from China by Ren Chang Ching in 1981, and hence was believed to have a disjunct distribution in North America and Asia. Since then, in all Chinese literature H. lucidula has been described as a disjunct taxon, although in North American literature it has nearly always only been reported from eastern North America. The studies on the Chinese taxon are at present insufficient to address this taxonomical and biogeographical disparity. In this study we have attempted to unravel this issue using integrative morphological and molecular analyses. Morphological study included a thorough examination of specimens from the entire distribution range of H. lucidula in the USA, Canada and China following field collections. Molecular study included Maximum Likelihood and Bayesian inference phylogenetical analyses of three chloroplast markers: the genes rbcL and matK and the psbA-trnH intergenic spacer. The results showed distinct morphological differences between the North American and Chinese taxa, sufficient to recognize them as separate species. The molecular results corroborated these findings and supported the separation of the two taxa. Based on our results, the Chinese taxon is neither a variant of H. lucidula nor sister to it and therefore the supposed disjunct distribution of H. lucidula is erroneous and a result of misidentification. The Chinese taxon that was firstly reported by Ching as H. lucidula var. asiatica has been elevated to the species rank and a new combination has been made.


1986 ◽  
Vol 64 (3) ◽  
pp. 637-639 ◽  
Author(s):  
D. K. Cone ◽  
A. O. Dechtiar

Gyrodactylus katharineri Malmberg, 1964, G. lotae Gussev, 1953, and G. lucii Kulakovskaya, 1952 are reported for the first time from North American host fishes (Cyprinus carpio, Lota lota, and Esox lucius, respectively). The new material is described. Gyrodactylus katharineri is an introduced species that apparently arrived along with host shipments brought to North America from Europe during the last century. Gyrodactylus mizellei Kritsky and Leiby, 1971 may be a synonym of G. katharineri. Gyrodactylus lotae and G. lucii are endemic species with natural ranges that extend throughout freshwaters of Eurasia and North America.


Author(s):  
Dagmar Soennecken

A number of migration scholars suggest that domestic courts have become the key protective institution for refugees. How can we explain this claim? One prominent explanation identifies group litigation as the key source of the increasing influence of the courts. How well does this explanation travel empirically? The article evaluates this explanation by examining the puzzling behaviour of German refugee NGOs. They have not entered the legal arena directly (either as parties or as interveners), nor have they concentrated on developing extensive litigation campaigns. Still, they are remarkably ‘judicialized’: their frequent engagement with the law in other respects has heightened their legal consciousness. Why have German refugee NGOs made such different choices than their North American counterparts and what do these choices tell us about the expanding influence of the courts over the fate of refugees in Germany and North America? To make sense of the different choices that these organizations have made, we need to understand the role that institutional norms and procedures, in particular policy legacies, have played in directing the behaviour and identity of these groups. For a number of reasons, German refugee NGOs historically have been discouraged from directly accessing the courts in favour of indirect participation. Since Canadian and American refugee organizations follow a pattern closer to the expectations of the (largely North American) literature on the subject, we need to be more careful in thinking through ou


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