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A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea)
No full textPaladini, Andressa, Thompson, Vinton, Bell, Adam J., Cryan, Jason R. (2020): A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea). Zootaxa 4852 (3): 361-371, DOI: 10.11646/zootaxa.4852.3.
FIGURES 1–13. Paraclastoptera erwini n in A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea)
No full textFIGURES 1–13. Paraclastoptera erwini n. sp., male. 1. Habitus, dorsal view. 2. Head, dorsal view. 3. Head, ventral view. 4. Habitus, lateral view. 5. Tegmina, lateral view. 6. Hindwing, lateral view. 7. Pygofer, ventral view. 8. Pygofer, lateral view. 9. Parameres (styles), dorsal view. 10. Paramere, lateral internal view. 11. Paramere, lateral external view. 12. Aedeagus, lateral view. 13. Aedeagus, dorsal view.Published as part of Paladini, Andressa, Thompson, Vinton, Bell, Adam J. & Cryan, Jason R., 2020, A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea), pp. 361-371 in Zootaxa 4852 (3) on page 366, DOI: 10.11646/zootaxa.4852.3.7, http://zenodo.org/record/440998
Clastoptera Germar 1839
No full textClastoptera Germar Clastoptera Germar, 1839. Type species: Clastoptera achatina Germar, by subsequent designation (Van Duzee 1917). Diagnosis: Globose, small insects, variable in size and color markings. Head wider than long; vertex narrow; postclypeus without a median carina, inflated; antennae inserted in deep cavities between eyes and postclypeus; pronotum broader than long, transversely wrinkled; scutellum triangular, much longer than wide; tegmina deflected posteriorly, clavus with apex rounded, corium terminating in a hyaline membrane; male pygofer higher than wide with a prominent process just below anal tube, subgenital plates fused to posterior edge of pygofer; paramere (style) strongly hooked dorsally.Published as part of Paladini, Andressa, Thompson, Vinton, Bell, Adam J. & Cryan, Jason R., 2020, A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea), pp. 361-371 in Zootaxa 4852 (3) on page 363, DOI: 10.11646/zootaxa.4852.3.7, http://zenodo.org/record/440998
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Paraclastoptera Paladini & Thompson & Bell & Cryan 2020, gen. n.
No full textParaclastoptera gen. n. Type species: Paraclastoptera erwini by original designation Diagnosis: Globose, small insects. Head convex, moderately pilose, wider than long; vertex narrow; postclypeus hexagonal, inflated, without a median carina; pronotum hexagonal with rounded humeral angles and median carina well marked; male pygofer higher than wide with a bilobated process below the anal tube, subgenital plates fused at base and to posterior edge og pygofer; paramere (style) subrectangular with an elongate apex, aedeagus globose and curved. Description: Head subrectangular, wider than long, convex, moderately pilose; eyes rounded; ocelli closer to each other than to eyes; tylus rectangular; vertex rectangular; antennae inserted in a deep pit on the middle of the eye, basal body of flagellum cylindrical; postclypeus hexagonal, inflated, without a medina carina, rostrum not reaching mesocoxae, pronotum hexagonal with rounded humeral angles and a median carina well marked; scutellum triangular, with a pair of rounded carina on the anterior portion; tegmina rounded with an apical reticule of closed cells, basal portion of second anal vein with a pronounced elevation; tibia with two lateral spines, basal spine smaller, apical spines of tibia disposed in a single row. Male pygofer higher than wide; subgenital plates fused at base, paramere (style) subrectangular with an elongate apex; aedeagus stout with a globose apex, curved dorsally in lateral view. Female pygofer higher than wide; first valvulae of ovipositor long and slender tapering toward apex, basal process inconspicuous, rounded and turned backwards, second valvulae of ovipositor short and wide with dorsal margin undulate. Etymology: The genus is named for its resemblance to Clastoptera, hitherto the only New World genus of the Clastopteridae.Published as part of Paladini, Andressa, Thompson, Vinton, Bell, Adam J. & Cryan, Jason R., 2020, A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea), pp. 361-371 in Zootaxa 4852 (3) on page 364, DOI: 10.11646/zootaxa.4852.3.7, http://zenodo.org/record/440998
Paraclastoptera Paladini & Thompson & Bell & Cryan 2020, gen. n.
No full textParaclastoptera gen. n. Type species: Paraclastoptera erwini by original designation Diagnosis: Globose, small insects. Head convex, moderately pilose, wider than long; vertex narrow; postclypeus hexagonal, inflated, without a median carina; pronotum hexagonal with rounded humeral angles and median carina well marked; male pygofer higher than wide with a bilobated process below the anal tube, subgenital plates fused at base and to posterior edge og pygofer; paramere (style) subrectangular with an elongate apex, aedeagus globose and curved. Description: Head subrectangular, wider than long, convex, moderately pilose; eyes rounded; ocelli closer to each other than to eyes; tylus rectangular; vertex rectangular; antennae inserted in a deep pit on the middle of the eye, basal body of flagellum cylindrical; postclypeus hexagonal, inflated, without a medina carina, rostrum not reaching mesocoxae, pronotum hexagonal with rounded humeral angles and a median carina well marked; scutellum triangular, with a pair of rounded carina on the anterior portion; tegmina rounded with an apical reticule of closed cells, basal portion of second anal vein with a pronounced elevation; tibia with two lateral spines, basal spine smaller, apical spines of tibia disposed in a single row. Male pygofer higher than wide; subgenital plates fused at base, paramere (style) subrectangular with an elongate apex; aedeagus stout with a globose apex, curved dorsally in lateral view. Female pygofer higher than wide; first valvulae of ovipositor long and slender tapering toward apex, basal process inconspicuous, rounded and turned backwards, second valvulae of ovipositor short and wide with dorsal margin undulate. Etymology: The genus is named for its resemblance to Clastoptera, hitherto the only New World genus of the Clastopteridae.Published as part of Paladini, Andressa, Thompson, Vinton, Bell, Adam J. & Cryan, Jason R., 2020, A remarkable new species of spittlebug and a second living New World genus in the Clastopteridae (Hemiptera: Cercopoidea), pp. 361-371 in Zootaxa 4852 (3) on page 364, DOI: 10.11646/zootaxa.4852.3.7, http://zenodo.org/record/440998
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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