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Phantolabis Alexander 1956
No full textGenus Phantolabis Alexander, 1956 Type species Erioptera lacustris Alexander, 1938. Diagnosis Small (wing length not exceeding 5.0 mm), greyish dark brown species; antenna short, with 11–12 segments, apical flagellomere elongate, formed by fused distal segments. All legs with a short third tarsomere and tarsal claws inserted subapically. Mid and hind tarsi with shortened first and second segments, third tarsomere modified, with keel-like edge. Wings wide with wide anal angle, veins almost without microtrichia, veins R, CuA and A 1 thickened, arculus poorly visible, cell R 3 long, with short R 2+3+4, discal cell open, crossvein m-m absent. Hypopygium not inverted, gonocoxites massive, lobe of gonostylus well developed, with short flat teeth, clasper of gonostylus rod-like, short and inconspicuous. Interbase slender, curved, and needle-like, lateral processes of aedeagal sheath (= parameres) absent. Aedeagus long, straight, thin, divided apically into two or three rods.Published as part of Pilipenko, Valentin E., 2021, The genus Phantolabis (Diptera: Limoniidae) new to the Palearctic: description of a new species and re-definition of the genus, pp. 148-161 in European Journal of Taxonomy 746 (1) on page 150, DOI: 10.5852/ejt.2021.746.1327, http://zenodo.org/record/472294
Phantolabis glacialis Pilipenko 2021, sp. nov.
No full textPhantolabis glacialis sp. nov. urn:lsid:zoobank.org:act: 9E18EC1A-B53A-49E2-989E-1612582E6860 Figs 1–5 Diagnosis Differs from P. lacustris by wing venation, structure of male genitalia and ovipositor. Wings entirely brownish, crossvein r-m connecting to Rs near wing midlength, apex of R3 bent to costal margin, apical part of vein CuP strongly curving toward wing margin, A 1 straight, noticeably thickened basally. Gonocoxites massive, with large ventromesal protrusion basally and ventral protrusion apically; lobe of gonostylus well developed, apically with 4–5 small teeth on inner surface; clasper of gonostylus small, situated at base of lobe of gonostylus, plate-like, each with thin apical process; aedeagus relatively thin, long and straight, apically bent upward and divided into two short rods. Etymology The specific Latin epithet ‘ glacialis ’ refers to the discovery of this species on ice. Type material Holotype RUSSIA • ♂; Primorsky Krai, Khasan district, Narva River; 43°04′18.7″ N, 131°22′20.3″ E; 25 m a.s.l; 30 Mar. 2001; E.A. Makarchenko leg.; ZISP. Paratypes RUSSIA • 5 ♂♂, 1 ♀; same collection data as for holotype; ZISP • 6 ♂♂, 1 ♀; same collection data as for holotype; ZMUM. Other material RUSSIA • 1 ♂; Primorsky Krai, Khasan district, Narva River; 43°04′18.7″ N, 131°22′20.3″ E; 25 m a.s.l; 27 Mar. 2005; E.A. Makarchenko leg.; ZMUM • 1 ♂; same collection data as for preceding; JSOC • 1 ♂; Sikhote-Alin Reserve, Kabaniy Klyuch River; 44°53′31.0″ N, 135°28′20.0″ E; 580 m a.s.l.; 24 Mar.–7 Apr. 2015; D.E. Shcherbakov leg.; Malaise trap; VPMC. Type locality RUSSIA: Primorsky Krai, Khasan district. Description Male (Figs 1–2) MEASUREMENTS. Body length 3.5–4.0 mm, wing length 4.5–5.0 mm, length of antennae 0.8–0.9 mm. HEAD (Fig. 1A –С). Greyish brown; rostrum short, greyish brown, mouth parts yellow; palpi yellow, with 3 oval segments. Antenna yellowish brown. Scape short, widening distally, pedicel oval. Flagellum 9–10-segmented. Basal flagellar segments subcylindrical, more apical ones shorter, ovoid. Distal flagellomere (Fig. 1C) elongate, formed by fused 4–5 distal segments. Verticils short, yellow, approximately half as long as respective segments. Segments covered with short, yellow pubescence. THORAX (Fig. 1A–B). Dark brown with grey pruinose. Pronotum yellowish brown. Mesonotal prescutum dark brown with grey pruinose, longitudinal stripes broad, indistinct, prescutal pits black, tuberculate pits indistinct. Scutal lobes and scutellum same color as prescutum. Mediotergite brownish grey pruinose. Pleuron brownish grey. Meron not separated by a suture from katepimeron, both midleg and hindleg coxae widely separated. LEGS (Fig. 1E). Coxae and trochanters light brown, femora light brown, tibiae brown without spurs, tarsomeres yellowish brown. Legs covered with very short, semi-erect brown setae. Mid tarsus with shortened first and second segments, third tarsomere short with rounded outgrowth on outer lateral side. Tarsal claws inserted subapically, claw simple, without additional spines, arolium absent. WINGS (Fig. 1D). Wide, brownish, sometimes darkened along CuA, veins brownish, almost without macrotrichia. Macrotrichia on wing membrane absent. Venation: arculus absent; Sc short, ending about level with midlength of Rs, stigma indistinct, but costal margin after Sc thickened, sc-r indistinct (if present then close to Sc tip); origin of Rs approximately level with apex of A 1 ; R 1 long, apex of R 3 bent to costal margin; bases of cells r 1 and r 3 at same level. Veins r-m and m-cu shifted to mid-wing, r-m connecting to Rs (not to R 4+5 as usual) closer to its middle. Discal cell very long and open due to absence of m-m. Apical part of CuP strongly bent toward wing margin, A 1 straight, noticeably thickened basally; anal angle wide, posterior margin widely rounded. Haltere with knob yellowish white. ABDOMEN (Fig. 1A). Generally light brown, grey pruinose, covered with rather long, erect, yellow setae; tergites brownish yellow, grey pruinose, lateral and medial stripes missing, posterior margins of tergites greyish. Sternites yellowish grey. HYPOPYGIUM (Fig. 2A–H). Dark brown, grey pruinose. Tergite IX transverse with shallow U-shaped notch. Gonocoxites massive, covered with spike-shaped setae directed laterally, with large ventromesal protrusions basally and ventral protrusions at apex (Fig. 2D). One pair of terminal gonostyli well developed, lobes of gonostyli (Fig. 2G–H), each shaped as triangular-rounded plate, apically with 4–5 small teeth on inner surface. Claspers of gonostyli strongly reduced, poorly visible, each situated at base of adjacent lobe of gonostylus, shaped as small plate, tightly attached to the gonostylus with thin process directed inward. Distal portion of interbase (Fig. 2E–F) simple, appearing as slender rod gradually narrowing to acute point, basal portions of interbases merge together medially to form separate crescent-shaped plate above aedeagus, referred to here as interbasal plate (ip). Lateral apodeme of paramere poorly developed. Lateral processes of aedeagal sheath absent. Aedeagus relatively thin, long and straight, protruding beyond apices of interbases and reaching approximately to midlength of gonocoxites, apically bent upward and divided into two short rods. Female (Fig. 3A–F) Similar to male. Antenna short, with 10 segments. Female terminalia (Fig. 3B–F) with tergites VIII, IX and X and sternite VIII brown, cerci and hypovalvae brownish yellow. Tergite VIII narrow in lateral aspect, tergite IX triangular, and tergite X relatively small. Cercus elongate, nearly parallel-sided, bent upwards at approximately ⅔ of its length, bluntapexed. Hypovalve long and straight, nearly parallel-sided, setae on dorsal margin long and distinct (Fig. 3E). Tips of hypovalvae reach approximately to ⅔ of cercus length. Two pigmented spermathecae (Fig. 3F). Elevation Specimens were collected at altitudes from approximately 25 to 600 m a.s.l. Period of activity Adults fly in March–April. Distribution Russia: Primorsky Krai (Fig. 5).Published as part of Pilipenko, Valentin E., 2021, The genus Phantolabis (Diptera: Limoniidae) new to the Palearctic: description of a new species and re-definition of the genus, pp. 148-161 in European Journal of Taxonomy 746 (1) on pages 150-154, DOI: 10.5852/ejt.2021.746.1327, http://zenodo.org/record/472294
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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