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FIGURES 20–22 in New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae)
No full textFIGURES 20–22. Male of Chersodromia gamoviensis sp. nov. (holotype). 20. Head. 21. Antenna. 22. Thorax. Scale in mm.Published as part of Maeda, Takuya, 2011, New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae), pp. 1-24 in Zootaxa 2979 on page 6, DOI: 10.5281/zenodo.20291
FIGURES 57–59 in New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae)
No full textFIGURES 57–59. Male of Chersodromia yamanei sp. nov. 57. Head (paratype). 58. Antenna (holotype). 59. Thorax (paratype). Scale in mm. acr sl: acrostichal setula; ap sctl s: apical scutellar seta; dc s: dorsocentral seta; dc sl: dorsocentral setula; npl s: notopleural seta; pal s: postalar seta; ph s: posthumeral seta; pprn s: postpronotal seta; sbap sctl sl: subapical scutellar setula; spal s: supra-alar seta.Published as part of Maeda, Takuya, 2011, New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae), pp. 1-24 in Zootaxa 2979 on page 21, DOI: 10.5281/zenodo.20291
Chersodromia
No full textKey to species of Chersodromia in the southern part of Primorsk Territory 1 Face between compound eyes narrower than frons (Figs. 50, 57)............................................... 2 - Face between compound eyes wider than frons (Figs. 20, 27, 34, 41)............................................. 3 2 Face between compound eyes narrower than median ocellus (Fig. 50); all setulae on head and thorax whitish................................................................................................. C. stenopsis sp. nov. - Face between compound eyes wider than median ocellus (Fig. 57); all setulae on head and thorax brown or black............................................................................................... C. yamanei sp. nov. 3 In frontal view gena wider than one-third of maximum eye height (Figs. 34, 41); fore tibia with distinct tibial gland in basal part (Fig. 19); vein R 1 meeting costa after midway of wing (Figs. 15, 16)......................................... 4 - In frontal view gena narrower than one-third of maximum eye height (Figs. 20, 27); tibial gland indistinct; vein R 1 meeting costa at or before midway of wing (Figs. 13, 14)............................................................. 5 4 Larger species, more than 2.5 mm in body length; katepisternum with small polished area; male fore tibia with posteroventral row of curved setulae; left cercus of male terminalia spatulate (Figs. 45, 48)...................... C. nubifera Coquillett - Smaller species, less than 2.0 mm in body length; katepisternum largely polished; male fore tibia without posteroventral row of curved setulae; left cercus of male terminalia oval (Fig. 40).................................... C. mohican sp. nov. 5 Outermost lobe of left surstylus of male terminalia rounded (Figs. 31, 33). Female unknown.............. C. leleji sp. nov. - Outermost lobe of left surstylus of male terminalia elongated (Fig. 24). Female unknown........... C. gamoviensis sp. nov.Published as part of Maeda, Takuya, 2011, New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae), pp. 1-24 in Zootaxa 2979 on page 3, DOI: 10.5281/zenodo.20291
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
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
Chersodromia gamoviensis Maeda, 2011, sp. nov.
No full text<i>Chersodromia gamoviensis</i> sp. nov. <p>(Figs. 6, 13, 20–26)</p> <p> <b>Diagnosis.</b> A small, brownish species measuring ca. 1.5 mm. Stylus long. Face wider than frons. Wings normally developed. Male terminalia: right surstylus reduced to small projection; right epandrial lamella conspicuously large; right cercus very small; left surstylus with simple, slender outermost lobe. Setae on head and thorax black. Vertical setae (2 pairs) present; posthumeral setae absent.</p> <p> <b>Description.</b> Holotype, male (Fig. 6). Body length 1.55 mm; head width 0.33 mm; wing length 1.51 mm. Head (Fig. 20) dark brown in ground-colour and greyish pollinose; palpus brown in ground-colour and greyish pollinose; proboscis brown, slightly shining; antenna brown; all setae and setulae on head black. Frons moderate in width; in frontal view face below antennal sockets wider than frons. Ocellar setae (2 pairs) moderate in length, as long as scape, pedicel and postpedicel combined. Vertical setae (2 pairs) longer than ocellar setae. In frontal view gena moderate in width, 1/5 as wide as maximum eye height. Occiput with setulae. Antenna (Fig. 21): postpedicel round and slightly higher than pedicel in lateral view, with setulae along anterior margin; extension of postpedicel present dorsoapically; stylus long. Palpus with long setulae.</p> <p>Thorax (Fig. 22) dark brown in ground-colour and greyish pollinose; all setae and setulae on thorax black. Vestiture on thorax: 1 setula on each proepisternum; 1 pair of postpronotal setae; no posthumeral setae; 3 pairs of notopleural setae; 1 pair of supra-alar setae; 1 pair of long, inflected postalar setae; 3 pairs of dorsocentral setae near median line (1 long pair near scutellum); some dorsocentral setulae in multiple rows; 1 pair of incomplete rows of acrostichal setulae; 1 pair of long, inflected apically scutellar setae; 1 pair of subapical scutellar setulae.</p> <p>Wing (Fig. 13) normally developed, clear, with pale brown veins. Basicosta with 2 black setae and some setulae; costa with many dark brown setulae along anterior margin, ending at connection with vein M1+2; subcosta absent; R1 meeting costa at midway of wing; radial sector moderate in length; CuA1 indistinctly connected to wing margin; anal vein reduced to pale, fold-like line. Calypter pale brown, minute. Halter pale brown, large.</p> <p>Legs brown, stout. All setae on legs black; setulae on legs brown to pale brown. Fore femur sparsely covered with setulae (setulae of anteroventral row long), with 1 anterior preapical seta, 1 anteroventral preapical seta, 1 posterior preapical seta and 1 posteroventral preapical seta. Fore tibia somewhat swollen in dorsal view, covered with setulae (especially dense on anterior surface), with 1 anteroventral preapical seta and 1 posteroventral preapical seta. Fore tibial gland indistinct. Mid femur sparsely covered with setulae, with 1 strong anterior preapical seta and 1 anteroventral preapical seta. Mid tibia covered with setulae, with anteroventral row of some small, black spinulae (preapical one long), 1 anterior preapical seta and 1 posteroventral preapical seta. Hind femur covered with setulae, with anteroventral row of ca. 10 setae, 1 anterior preapical seta and 1 posteroventral preapical seta. Hind tibia covered with setulae (especially dense in apical part of posteroventral surface), with 2 anteroventral setae, 1 anterior seta, 1 anterior preapical seta, 1 anterodorsal seta, 1 anterodorsal preapical seta and 1 dorsal seta. Fore, mid and hind tarsomeres covered with setulae.</p> <p>Preabdomen sparsely covered with pale brown setulae; tergites and sternites brown in ground-colour and sparsely greyish pollinose.</p> <p>Terminalia (Figs. 23–26). Right surstylus reduced to small projection (Figs. 23, 25), boundary line between it and right epandrial lamella obscure. Right epandrial lamella conspicuously large (see Fig. 6), with short setae (Figs. 23, 25). Left surstylus composed of several lobes; outermost lobe simple, slender (Fig. 24). Left cercus moderate in size, somewhat slender, with some setulae; right cercus very small, bearing some small setulae (Fig. 26).</p> <p>Female. Unknown.</p> <p> <b>Type material. HOLOTYPE</b> 3, labelled: Russian Far East, S. Primorye, Gamov Pen., Astaf’ev Bay (bare sands), 26.viii.2010, leg. T. Maeda (IBSS). <b>Paratype</b>: 1 3, Gamov Pen., Vityaz’ Bay, 23.viii.2010 (NIAES).</p> <p> <b>Etymology.</b> This species is named after the type locality, Gamov Peninsula.</p> <p> <b>Distribution.</b> Russian Far East: southern part of Primorsk Territory.</p> <p> <b>Remarks.</b> This species was found only on the shores facing the open sea. <i>Chersodromia gamoviensis</i> is a rarely collected species (only two males were collected in this survey) and very similar to <i>C</i>. <i>leleji</i> except in male terminalia. The terminalia of <i>C</i>. <i>gamoviensis</i> differs from <i>C</i>. <i>leleji</i> mainly in the size of the right epandrial lamella and the shape of the left surstylus. The right epandrial lamella is very large, and the outermost lobe of the left surstylus is slender in <i>C</i>. <i>gamoviensis</i>.</p>Published as part of <i>Maeda, Takuya, 2011, New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae), pp. 1-24 in Zootaxa 2979</i> on pages 3-8, DOI: <a href="http://zenodo.org/record/202911">10.5281/zenodo.202911</a>
Chersodromia stenopsis Maeda, 2011, sp. nov.
No full textChersodromia stenopsis sp. nov. (Figs. 10, 17, 50–56) Diagnosis. A small, greyish species measuring less than 1.5 mm. Face extremely narrow. Katepisternum dull. Wings normally developed. Male terminalia: right surstylus being pointed lobe; left surstylus with bifurcate outermost lobe; left cercus small. Setae on head and thorax dark brown, small (postalar setae conspicuously small); setulae on head and thorax whitish, small. Vertical setae (2 pairs) present; proepisternal setae/setulae, posthumeral setae and supra-alar setae absent. Description. Male (Fig. 10). Body length 1.19–1.34 mm; head width 0.32–0.35 mm; wing length 1.45–1.60 mm. Head (Fig. 50) grey in ground-colour and whitish pollinose; palpus whitish pollinose; proboscis pale brown, slightly shining; antenna brown; all setae on head dark brown; all setulae on head whitish with brown tinge. Frons moderate in width; in frontal view face extremely narrow, narrower than median ocellus. Ocellar setae (2 pairs) and vertical setae (2 pairs) short, as long as scape and pedicel combined. In frontal view gena narrow, 1 / 7 as wide as maximum eye height. Occiput with setulae. Antenna (Fig. 51): postpedicel round in lateral view, bearing setulae along anterior margin; extension of postpedicel present dorsoapically; stylus moderate in length, ca. 2 times as long as pedicel and postpedicel combined. Palpus with some setulae and sensory pit, but it hardly visible without preparation on slide. Thorax (Fig. 52) grey in ground-colour and whitish pollinose; no polished area on katepisternum; all setae brown; all setulae whitish with brown tinge. Vestiture on thorax: proepisternal seta/setula absent; 1 pair of long postpronotal setae; no posthumeral setae; 2 pairs of notopleural setae; no supra-alar setae (1 or 2 pairs of supra-alar setulae present); 1 pair of small postalar setae; some dorsocentral setulae in multiple rows; 1 pair of incomplete rows of some acrostichal setulae; 1 pair of long apically scutellar setae; 1 pair of tiny subapical scutellar setulae. Wing (Fig. 17) normally developed, clear with grey tinge; veins pale brown. Basicosta with 1 dark brown seta; costa with pale brown setulae along anterior margin, ending at connection with vein M 1 + 2; subcosta absent; R 1 meeting costa before midway of wing; radial sector moderate in length; CuA 1 indistinctly connected to wing margin; anal vein reduced to pale, fold-like line. Calypter minute, whitish with brown tinge. Halter pale brown, large. Legs pale brown, somewhat slender. Setae on legs brown/pale brown; all setulae on legs whitish with brown tinge. Fore femur sparsely covered with setulae (setulae of anteroventral and posteroventral rows long), with 1 short anterior preapical seta and 1 posterior preapical seta. Fore tibia covered with setulae, with 1 anteroventral preapical seta and 1 posteroventral preapical seta. Fore tibial gland indistinct. Mid femur covered with setulae, with 1 anterior preapical seta, 1 anteroventral preapical seta, 1 posterior prearical seta and 1 posteroventral preapical seta. Mid tibia slightly inflexed, covered with setulae, with anteroventral row of 13–16 short, brown spinulae (apical one longest), 1 anterior preapical seta, 1 posterior preapical seta, 1 posteroventral preapical seta and 2 anterodorsal setae. Hind femur covered with setulae (setulae of posteroventral row relatively long), with 1 anteroventral preapical seta. Hind tibia covered with setulae, with 2 dorsal setae, 1 anterodorsal preapical seta, 1 anterodorsal seta, 1 anterior preapical seta, 2 anterior setae and 2 anteroventral setae. Fore, mid and hind tarsomeres covered with setulae. Preabdomen sparsely covered with whitish setulae; tergites and sternites brown in ground-colour and sparsely whitish pollinose; membrane pale brown in ground-colour and sparsely whitish pollinose. Tergites 1–7 each with 1 or 2 brown plaques laterally and 1 pair of small pits dorsolaterally. Eighth segment hidden. Terminalia (Figs. 53–56). Coloration: right surstylus generally brown, partially shiny black; right epandrial lamella brown in ground-colour and sparsely whitish pollinose; cerci brown; left surstylus, left epandrial lamella and hypandrium shiny dark brown. Right surstylus being pointed lobe (Figs. 53, 55), boundary line between it and right epandrial lamella obscure. Right epandrial lamella with brown setulae (Fig. 53), with small setulae in dorsoapical part, which somewhat flattened (Fig. 55). Left surstylus composed of several lobes; outermost lobe large, bifurcate (Fig. 54). Right and left cerci weakly sclerotized, small (lengths of right and left cerci almost same), apically with some setulae (Fig. 56). Female. Body length 1.37–1.39 mm; head width 0.34–0.35 mm; wing length 1.54–1.65 mm. Closely resembling males except in structure of mid tibia and terminalia. Mid tibia not inflexed, without anteroventral row of spinulae. Cercus brown. Type material. HOLOTYPE 3, labelled: Russian Far East, S. Primorye, Gamov Pen., Vityaz’ Bay, 24.viii. 2010, leg. T. Maeda (IBSS). Paratypes: 10 3, 13 Ƥ (dried specimens), same data as holotype; 10 3, 9 Ƥ, same loc., 23.viii. 2010. Other specimens examined (in alc.): 35 3, 60 Ƥ, Amur Bay, 3–5 km E. Tavrichanka, 22.viii. 2010; 2 Ƥ, Zarubino, 25.viii. 2010; 4 3, 4 Ƥ, Gamov Pen., Astaf’ev Bay (scrub zone), 26.viii. 2010; 30 3, 34 Ƥ, Gamov Pen., Telyakovskiy Bay, 24.viii. 2010; 5 3, 2 Ƥ, Pos’et, 25.viii. 2010; 17 3, 20 Ƥ, Nazimov Cape, 28.viii. 2010. Type depository. Some paratypes are in FMNH, IBSS, NIAES, USNM, OUMNH and TMC. Etymology. The specific epithet “ stenopsis ” is Latin meaning “narrow face”. Distribution. Russian Far East: southern part of Primorsk Territory. Remarks. This species was found on different kinds of seashores, but appears generally to prefer habitats in the upper littoral zone on shores with abundant washed up debris, comprising mainly seaweeds. However, on the shore of Astaf’ev Bay (Fig. 3) it was very rare and only found in the scrub zone probably because C. nubifera occupied washed up debris. It is very easy to distinguish C. stenopsis from the other species in the Russian Far East by its very narrow face.Published as part of Maeda, Takuya, 2011, New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae), pp. 1-24 in Zootaxa 2979 on pages 17-20, DOI: 10.5281/zenodo.20291
Chersodromia yamanei Maeda, 2011, sp. nov.
No full textChersodromia yamanei sp. nov. (Figs. 11, 18, 57–63) Diagnosis. A small species measuring less than 1.5 mm, with narrow gena. Stylus relatively short. Katepisternum largely polished. Wings normally developed. Male terminalia: left cercus sclerotized, large and elongate; right cercus sclerotized, small; right surstylus heavily sclerotized, prominent, with tip somewhat pointed; right epandrial lamella with large expansion dorsoapically; outermost lobe of left surstylus simple, elongate. Head and thorax with black/dark brown setae. Vertical setae (2 pairs) and posthumeral setae present. Description. Male (Fig. 11). Body length 1.15–1.19 mm; head width 0.25–0.30 mm; wing length 1.32–1.44 mm. Head (Fig. 57) black in ground-colour and greyish pollinose; palpus whitish pollinose; proboscis brown; antenna brown/dark brown; setae and setulae on head black/dark brown. Frons relatively wide; in frontal view face below antennal sockets slightly narrower than frons. Ocellar setae (2 pairs) moderate in length, as long as scape, pedicel and postpedicel combined. Vertical setae (2 pairs) as long as ocellar setae. In frontal view gena narrow, 1 / 7 as wide as maximum eye height. Occiput with setulae. Antenna (Fig. 58): postpedicel round and slightly higher than pedicel in lateral view, bearing setulae on anterior margin; extension of postpedicel present dorsoapically; stylus short, 2 times as long as pedicel and postpedicel combined. Palpus with 6–8 setulae; sensory pit obscure even with preparation on slide. Thorax (Fig. 59) black in ground-colour and greyish pollinose; katepisternum largely polished; all setae and setulae black. Vestiture on thorax: 1 setula on each proepisternum; 1 pair of long, inflected postpronotal setae; 1 pair of distinct posthumeral setae; 2–3 pairs of notopleural setae; 1 pair of supra-alar setae; 1 pair of long, inflected postalar setae; 4 pair of dorsocentral setae near median line (one long pair near scutellum); some dorsocentral setulae in multiple rows; 1 pair of incomplete rows of acrostichal setulae; 1 pair of long, inflected apically scutellar setae; 1 pair of subapical scutellar setulae. Wing (Fig. 18) normally developed, clear, with pale brown veins. Basicosta with 1 long, black seta; costa with many dark brown setulae along anterior margin, ending at connection with vein M 1 + 2; subcosta absent; R 1 meeting costa at midway of wing; radial sector moderate in length; CuA 1 indistinctly connected to wing margin; anal vein reduced to pale, fold-like line. Calypter minute, whitish with brown tinge. Halter pale brown, large. Legs yellowish brown, stout. All setae on legs black; setulae on legs brown/pale brown. Fore femur sparsely covered with setulae (setulae of anteroventral and posteroventral rows long; some preapical setulae strong; 2 subbasal setulae long). Fore tibia covered with setulae (especially dense on anterior surface), with 1 anteroventral preapical seta and 1 posteroventral preapical seta. Fore tibial gland indistinct. Mid femur covered with setulae, with anteroventral row of 6–9 setae, posteroventral row of 6–10 setae, 1 anterior preapical seta, 1 anteroventral preapical seta, 1 posterior prearical seta and 1 posteroventral preapical seta. Mid tibia slightly inflexed, stout, covered with setulae, with anteroventral row of 11–14 strong, black spinulae (gradual shift of length of spinulae from basal to preapical present), 1 anterior preapical seta and 1 posteroventral preapical seta. Hind femur covered with setulae, with 1 anterior preapical seta and 1 anteroventral preapical seta. Hind tibia covered with setulae, with dorsal row of 3 setae, 1 anterodorsal preapical seta, 1 anterodorsal seta, 1 anterior preapical seta, anterior row of 2 setae, anteroventral row of 2 setae and 1 ventral preapical seta. Fore, mid and hind tarsomeres densely covered with setulae. Preabdomen sparsely covered with whitish setulae; tergites and sternites dark brown in ground-colour and sparsely greyish pollinose; membrane pale brown in ground-colour, sparsely whitish pollinose. Tergites 1–7 each with 1 or 2 indistinct, black plaques laterally and 1 pair of small pits dorsolaterally. Tergite 7 with some long setae along posterior margin. Eighth segment hidden, with some setae along posterior margin. Terminalia (Figs. 60–63). Coloration: right surstylus shiny black; right epandrial lamella and cerci dark brown in ground-colour and entirely whitish pollinose; left surstylus, left epandrial lamella and hypandrium shiny pale brown. Right surstylus being pointed lobe (Figs. 60, 62, 63), boundary line between it and right epandrial lamella somewhat obscure. Right epandrial lamella with black setae (Fig. 60), with conspicuously developed dorsoapical expansion with apical and dorsal processes (Fig. 62). Left surstylus composed of several lobes; outermost lobe simple, slender, bearing 1 short setula at apex (Fig. 61). Left cercus slender, bearing some setae; right cercus small, apically with some setae (Fig. 63). Female. Body length 1.27–1.39 mm; head width 0.38 – 0.38 mm; wing length 1.32–1.59 mm. Closely resembling males except in structure of mid tibia and terminalia. Mid tibia not inflexed, without anteroventral row of spinulae, with 2 anterodorsal setae, 1 anterior preapical seta, 1 ventral preapical seta and 1 posterior preapical seta, sparsely with setulae. Cercus dark brown in ground-colour and sparsely greyish pollinose. Type material. HOLOTYPE 3, labelled: Russian Far East, S. Primorye, Gamov Pen., Astaf’ev Bay, 26.viii. 2010, leg. T. Maeda (IBSS). Paratypes: 17 3, 14 Ƥ, same data as holotype. Other specimens examined (in alc.): 1 Ƥ, Amur Bay, 3–5 km E. Tavrichanka, 22.viii. 2010; 1 3, Andreevka, Risovaya Bay, 23.viii. 2010. Type depository. Two paratypes (male and female) are deposited in IBSS; some paratypes are in FMNH, NIAES and TMC. Etymology. The specific epithet is dedicated to the ant taxonomist, Prof. Seiki Yamane, of Kagoshima University, Japan. Distribution. Russian Far East: southern part of Primorsk Territory. Remarks. This species was collected only on sandy shores (Fig. 3) and was relatively rare in every locality surveyed.Published as part of Maeda, Takuya, 2011, New species of Chersodromia from the Russian Far East (Diptera: Empidoidea: Hybotidae: Tachydromiinae), pp. 1-24 in Zootaxa 2979 on pages 20-23, DOI: 10.5281/zenodo.20291
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
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