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FIGURE 1 in Peracchius durantae, a new genus and species of whitefly (Hemiptera: Aleyrodidae) from Brazil
No full textFIGURE 1. Peracchius durantae sp. n. A—puparium; B—margin and dorsal submargin; C—Antenna and legs (A Scale: 0.5 mm; B and C scale: 1.0 mm).Published as part of Lima, A. F. & Racca-Filho, F., 2005, Peracchius durantae, a new genus and species of whitefly (Hemiptera: Aleyrodidae) from Brazil, pp. 39-43 in Zootaxa 1045 on page 41, DOI: 10.5281/zenodo.16988
FIGURE 3 in A new Brazilian stag beetle of the genus Sclerostomus Burmeister, 1847 (Insecta: Coleoptera: Lucanidae)
No full textFIGURE 3. Sclerostomus (Altitatiayus) trifurcatus n. sp., right mandible, left view (scale 1 mm).Published as part of Grossi, P. C. & Racca-Filho, F., 2004, A new Brazilian stag beetle of the genus Sclerostomus Burmeister, 1847 (Insecta: Coleoptera: Lucanidae), pp. 1-4 in Zootaxa 575 on page 3, DOI: 10.5281/zenodo.15725
Sclerostomus (Altitatiayus) trifurcatus Grossi & Racca-Filho, 2004, new species
No full text<i>Sclerostomus</i> (<i>Altitatiayus</i>) <i>trifurcatus</i>, new species <p> <b> Material examined. <i>Holotype</i>:</b> male, Brasil, MG, Passa Quatro, Serra Fina, Trilha da Boca do Lobo, 2800 m, 07­XI­1999, R. Koike col. Ex col. E. & P. Grossi deposited in Museu Nacional do Rio de Janeiro, Universidade Federal do Rio de Janeiro, Brazil.</p> <p> <b>Description.</b> Male: 16 mm in length, 6 mm wide. Body elongate­oval and convex (Fig. 1); glabrous and black dorso­ventrally. Head broad, rectangular, excavated in the middle from vertex to the frontal border; posterior lateral borders elevated, spherical in shape; frontal border sinuate; canthus with anterior concavity, covering less than half of the eyes; frons with a conspicuous tubercle. Antennae with the scape weakly arched and the pedicel small. (Specimen lacking the antennal clubs.) Mandibles fully upturned, trifurcate apically. Lower portion of the mandible with a flat tooth basally, presenting above a bifurcate apophysis. The basal tooth of mandible median and acute (Figs. 2 and 3). Labrum triangular with a small tooth laterally; labium granulose, convex and setose with marginal punctures anteriorly. Pronotum smooth, bordered all around, weakly convex; anterior border elevated towards the middle with a minute central dent. Protibiae sparsely setose with four teeth externally. Meso and metatibiae with one external spine at the middle. Elytra convex and finely punctured, with eight longitudinal striae, with coalescent punctures basally.</p> <p>Female: unknown.</p> <p> <b>Etymology.</b> The specific epithet refers to the trifurcate mandibles, which are unique in the genus and readily distinguish it from other species of <i>Sclerostomus</i>. <b>Discussion.</b> The new species can be easily distinguished from other <i>Sclerostomus</i> species by the apical trifurcate mandibles and by the presence of a conspicuous tubercle on the frons.</p>Published as part of <i>Grossi, P. C. & Racca-Filho, F., 2004, A new Brazilian stag beetle of the genus Sclerostomus Burmeister, 1847 (Insecta: Coleoptera: Lucanidae), pp. 1-4 in Zootaxa 575</i> on pages 1-4, DOI: <a href="http://zenodo.org/record/157255">10.5281/zenodo.157255</a>
Peracchius durantae Lima & Racca-Filho, 2005, sp. n.
No full textType species <i>Peracchius durantae</i> sp. n. <p> <b>Diagnosis</b>: Puparium medium in size, narrowly elongate spindle­shaped, acute posteriorly, acute­or­indented anteriorly; always with a pair of acute and stout subapical setae at each end; anterior and posterior marginal setae considerable distances away from puparial apices, but unusually long; margin irregularly crenulate; wax secretions absent; submargin not separated from dorsal disc by a fold or suture; margin modified at thoracic and caudal tracheal openings (from slightly indented to a <i>Dialeurodes</i> ­like pore); caudal furrow distinct; operculum obscuring lingula, filling vasiform orifice (but detail of lingula often visible through operculum); with normal pair of 8th abdominal setae close to vasiform orifice, and a second 8th abdominal pair posterior to vasiform orifice; typically with a pair of setae on each of abdominal segments I, II­VII, pro­, meso­and metathorax most or all of these capitate; cephalic region with submedian setal pair (the normal “cephalic setae”) of variable size/shape, and at least two other pairs that are usually capitate the positions of all the capitate setae are variable between species sometimes in outer submargin; transverse moulting sutures reaching, or almost reaching puparial margin; many segments usually with tubercles in submedian zone, either along median line or bordering submedian zone (as in <i>P. durantae</i>, Figs 1 A, 2A); ventral tracheal folds marked, sometimes only subtly; legs well separated from each other.</p> <p> <b>Etymology</b>: The generic name is in tribute to Dr. Adriano Lucio Peracchi, from Universidade Federal Rural do Rio de Janeiro, for his contributions to our knowledge of Brazilian whiteflies.</p> <p> <b>Affinities</b>: The new genus appears to be most closely allied to <i>Dialeurodes</i> <b>­</b> group as defined by Jensen (2001), with relatively abundant dorsal setae, tracheal notches, pores at margin, tendency to have an ornate lingula (when it can be discerned), and ventral tracheal folds. However, the combination of elongate spindle­shaped puparia, extremely stout caudal and anterior submarginal setae, capitate dorsal disc setae and the chaetotaxy do combine to indicate a distinct generic assemblage. The new genus superficially resembles <i>Agrostaleyrodes</i> Ko, 2001, differing from it in the presence of abdominal tubercles instead of depressions, more extensive chaetotaxy, tracheal and caudal folds evident, the transverse moulting suture reaching the margin and in the absence of longitudinal ridges on dorsum. <i>Agrostaleyrodes</i> is a grass­feeding genus, and grass­feeding whiteflies rarely also colonise dicotyledonous hosts.</p>Published as part of <i>Lima, A. F. & Racca-Filho, F., 2005, Peracchius durantae, a new genus and species of whitefly (Hemiptera: Aleyrodidae) from Brazil, pp. 39-43 in Zootaxa 1045</i> on page 40, DOI: <a href="http://zenodo.org/record/169880">10.5281/zenodo.169880</a>
Peracchius durantae Lima & Racca-Filho, 2005, sp.n.
No full textPeracchius durantae sp.n. PUPARIUM. Habitus (Figs. 1 A): Color light green to yellow in life. Elongate elliptical in shape, with concave reentrance in anterior margin and longitudinal moulting suture. Wax secretions absent. Puparium 2.26 mm long, 0.66 mm wide. Margin: irregularly crenulate (Fig. 1 B); thoracic and caudal tracheal pore areas differentiated from rest of margin (Figs. 2 B and C); anterior and posterior marginal setae needlelike. Dorsum. Submarginal area punctuated by sinuous lines (Fig. 1 B), not separated from dorsal disc. Longitudinal and transverse moulting sutures reaching margin. Cephalothoracic suture indistinct, promidthoracic and mesohindthoracic sutures short. Cephalothorax with prominent subdorsal, paired tubercles. Cephalic region with four pairs of setae: one stout anterior submarginal needlelike pair (longer than the others), and three pairs that are curved and capitate (Fig. 2 D). Three paired setae, curved and capitate, on thoracic region, two on the prothorax and one on the metathorax; mesothoracic paired setae absent. Abdominal segments distinct on median and submedian areas; each segment, except the eighth, with a pair of prominent tubercles on each side of median area; each of the eight abdominal segments, excepting the second, with a pair of setae between the submedian tubercles (Fig. 2 A). Vasiform orifice subcordate, with rounded teeth posteriorly, and a pair of short, acute, setae near anterior margin (Fig. 2 E). Operculum subcordate, filling about twothirds of orifice and obscuring the lingula. Caudal ridges present, with no ornamentation, weakly defining a caudal furrow. Disc porettes scattered over dorsum. FIGURE 2. Peracchius durantae sp. n. A—submedian tubercles and capitate setae; B—tracheal thoracic fold (ventral) and pore; C—caudal fold (ventral); D—curved and capitate dorsal disc seta; E—vasiform orifice, showing ventral abdominal spiracles posterior to dorsal 8 th abdominal setae (All scale 1.0 mm except D scale 0.1 mm). Ven te r. Antennae situaded mesal to fore legs. Legs smooth, adhesive pads evident, basal microsetae not discernible (Fig. 1 C). Legs not contiguous. Thoracic and caudal tracheal fold discernible, ornamented with rounded tubercles (Figs. 2 B, 2 C). Marginal thoracic tracheal pores typical Cshaped (Fig. 2 B). Adult: Unknown. Holotype pupal case: Brazil, Rio de Janeiro: Seropédica, 11.v. 2005, A.F. Lima col., on Duranta repens var. Aurea (Verbenaceae), on slide, CECL 12.485. Paratypes: Brazil. All collected from Duranta repens (Verbenaceae). Tocantins: São Salvador, 2 pupal cases, 12.viii. 2004, R. Gredilha col., CECL 12.491; Espírito Santo: Linhares, 6 pupal cases, viii. 2004, P.C. Grossi col., CECL 12.492 and Rio de Janeiro: Seropédica, 4 pupal cases, 31.vii. 2003, A.F. Lima col., CECL 12.486, 3 pupal cases, 16.x. 2003, A.F. Lima col., CECL 12.487; Niterói, 1 pupal case, 26.iv. 2004, F.B. Pitombo col., CECL 12.488; Miguel Pereira, 2 pupal cases, 19.viii. 2003, F. Racca Filho col., CECL 12489, 2 pupal cases, 31.viii. 2003, F. Racca Filho col., CECL 12.490. Host plants: Verbenaceae: Duranta repens Linnaeus var. aurea. Distribution: Brazil, Belize (see discussion). Etymology. The specific epithet refers to the host plant, Duranta repens, on which the species has been found in Brazil. Discussion. Peracchius durantae is unlike any other previously described whitefly, as defined in the generic and species descriptions, above. The distribution of this species will be modified by additional collecting in view of the wide distribution of the host plant in the Brazilian territory, and specimens of P. durantae have also been collected from an unknown host in Belize. Moreover, unidentified material from other countries in Central America and the Caribbean appears to belong to this new genus (J. Martin, personal communication; material in Natural History Museum, London, UK).Published as part of Lima, A. F. & Racca-Filho, F., 2005, Peracchius durantae, a new genus and species of whitefly (Hemiptera: Aleyrodidae) from Brazil, pp. 39-43 in Zootaxa 1045 on pages 40-43, DOI: 10.5281/zenodo.16988
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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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