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A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species
No full textKwon, Sua, Oh, Sumin, Jung, Sunghoon (2017): A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species. Zootaxa 4341 (1), DOI: https://doi.org/10.11646/zootaxa.4341.1.1
FIGURES 8–14 in A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species
No full textFIGURES 8–14. Iassus iziaslavi (Anufriev, 1977): 8. Male's habitus. 9. Pygofer lobe, processes and pygofer appendage. 10. Subgenitalplate. 11. Aedeagus in lateral view. 12. Aedeagus in ventral view. 13. Style. 14. Connective. Scales: (8) 1mm; (9–14) 0.1mm.Published as part of Kwon, Sua, Oh, Sumin & Jung, Sunghoon, 2017, Zootaxa 4341 (1), DOI: 10.11646/zootaxa.4341.1.13, http://zenodo.org/record/103869
Iassus ulmi
No full textIassus ulmi (Kusnezov, 1929) Batracomorphus ulmi Kusnezov, 1929: 254 Iassus mongolicus Dlabola, 1965: 97 Iassus ulmi Nast, 1972: 229 Diagnosis. Vertex green or brownish; pronotum and scutellum brown. Fore wings greenish and translucent (Lee 1970; Anufriev et al. 1988). Male pygofer lobe ventral process with ventral tooth at middle of edge; apex unbranched and curved; appendages of anal tube wide, extended to posterior margin (Anufriev et al. 1988). Measurements. Body length 6.5–7.5 mm (Lee 1970). Host plants. In broad-leaved and mixed forests on Ulmus (Anufriev et al. 1988) Distributions. Russia (Primorskiy kray, S. Kurile Isls), Korea (North), Mongolia. Remarks. This species was recorded from North Korea by Nast (1972) for the first time, however, we could not examine the species due to lack of specimens.Published as part of Kwon, Sua, Oh, Sumin & Jung, Sunghoon, 2017, A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species in Zootaxa 4341 (1), DOI: 10.11646/zootaxa.4341.1.13, http://zenodo.org/record/103869
Iassus Fabricius 1803
No full textGenus: Iassus Fabricius, 1803 Iassus Fabricius, 1803: 85 (type designation: Fallen 1826a:58) (Type: Cicada lanio Linnaeus, 1761) Bythoscopus Germar, 1833: 180 (type designation: Lewis 1834) (Type: Cicada lanio Linnaeus, 1761) Jassus (Bythoscopus) Blanchard, 1840: 198 Iassus (Iassus) Westwood, 1840: 117 Macropsis Amyot & Serville, 1843: 585 (type designation Kirkaldy 1907d:31) (Type: Cicada lanio Linnaeus, 1761 Preoc.: Macropsis Lewis, 1834) Diagnosis. Body usually longer than 6 mm. Head pale green, dark green, reddish brown or variegated; vertex, pronotum and posterior end of scutellum with fine horizontal striations; pronotum comparatively wide, broadened posteriorly with posterolateral margins angulate; scutellar suture strongly angulate medially. Fore wings coarsely punctate. Male pygofer lobe broadly rounded posterior;y with small bristles, with process at inner surface on ventral margin; anal tube with appendicular process. Subgenital plate usually short, finger shaped, without setae or bristles. Style apophysis vestigial, short and stubby. Connective Y-shaped, end of each arm broader than central stem. Aedeagus with single shaft; apex with lateral lobes; gonopore between lobes (for details see Krishnankutty et al. 2016; Anufriev et al. 1988). Distribution. Palearctic.Published as part of Kwon, Sua, Oh, Sumin & Jung, Sunghoon, 2017, A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species in Zootaxa 4341 (1), DOI: 10.11646/zootaxa.4341.1.13, http://zenodo.org/record/103869
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Iassus lateralis
No full textIassus lateralis (Matsumura, 1905) (Figs. 1–7) Macropsis lateralis Matsumura, 1905: 51 Batracomorphus orientalis Kusnezov, 1929: 253 Batracomorphus laniarius Jacobi, 1943: 31 Pachyopsis lateralis Ishihara, 1953: 20 Iassus lateralis Ishihara, 1954: 14 Bythoscopus lateralis Esaki & Ito, 1954: 254 Iassus laniarius Nast, 1972: 228 Description. Head green. Vertex and pronotum variegated with reddish brown spots. Scutellum orange brown, bordered with yellow suture arcuate. Forewings translucent and pale green; veins green; clavus without dark spot. Legs green, without pattern or spot (Fig. 1). Male genitalia. Pygofer lobe process without ventral tooth, unbranched and curved apically; anal tube appendage small, slim and sharp (Fig. 2). Subgenital plate with pointed apex (Fig. 3). Aedeagus long and slim, apex aligned and narrowly bifurcate (Fig. 5). Aedeagus apex with small lateral lobes (Fig. 4). Measurements. Body length males 8.43–9.26 mm, females 7.93–9.19 mm. Specimens examined. [CNU] 1♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 17. VI. 2015, coll. S.A Kwon, light trap; [CNU] 4♂♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 18. VI. 2015, coll. S.M. Oh; [CNU] 1♂, 2♀♀, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 22. VI. 2016, coll. S.A Kwon, light trap; [Hokkaido University] 3 specimens, Japan, coll. Matsumura (unreadable labels for collecting localities). Host plants. In broad-leaved and mixed forests on Ulmus (Anufriev et al. 1988). Distributions. China, Japan, Russia, Mongolia, Korea *.Published as part of Kwon, Sua, Oh, Sumin & Jung, Sunghoon, 2017, A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species in Zootaxa 4341 (1), DOI: 10.11646/zootaxa.4341.1.13, http://zenodo.org/record/103869
Iassus iziaslavi
No full textIassus iziaslavi (Anufriev, 1977) (Figs. 8–14) Jassus iziaslavi Anufriev, 1977: 17 Description. Head green. Pronotum anterior margin variegated with dark brown spots. Scutellum dark brown basally, pale green apically. Forewings translucent and brownish green, punctate; clavus with dark spot at apex of clavus. Legs green, without pattern or spot (Fig. 8). Male genitalia. Pygofer process without ventral tooth; apex curved and angulate; anal tube appendage extended nearly to pygofer process, middle part sinuate, sharply narrowed to apex (Fig. 9). Subgenital plate usually short, finger shaped, without setae and bristles (Fig. 10). Aedeagus robust, with lateral lobes broadened from middle to apex (Figs 11–12). Measurements. Body length males 7.00– 8.22 mm, females 7.41–8.17 mm. Specimens examined. [CNU] 1♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 24. VI. 2014, coll. T.S. Kwak; [CNU] 3♂♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 17. VI. 2015, coll. S.A Kwon, light trap; [CNU] 4♂♂, 1♀, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 18. VI. 2015, coll. S.M. Oh; [CNU] 1♀, Chungnam National Univ., Yuseong-gu, Daejeon, Korea, 27. IV. 2014, coll. J.H. Song; [CNU] 1♀, Chungnam National Univ., Yuseong-gu, Daejeon, Korea, 22. V. 2015, coll. Y.M. Kim; [CNU] 1♀, Chungnam National Univ., Yuseong-gu, Daejeon, Korea, 30. V. 2016, coll. C.H. Kwak; [CNU] 2♀♀, Chungnam National Univ., Yuseong-gu, Daejeon, Korea, 1. VI. 2016, coll. J.Y. Choi, light trap; [CNU] 1♂, 3♀♀, Donam-ri, Geumnam-myeon, Sejong, Korea, 3. VI. 2015, coll. S.A Kwon, light trap. Host plants. Unknown Distributions. Russia, Korea *.Published as part of Kwon, Sua, Oh, Sumin & Jung, Sunghoon, 2017, A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species in Zootaxa 4341 (1), DOI: 10.11646/zootaxa.4341.1.13, http://zenodo.org/record/103869
Variations on the Author
Full text link“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
Full text linkWe 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
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