522 research outputs found

    Ecclissi totale di sole visibili in gran parte dell'Europa

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    Curzio Buzzetti : colla descrizione generale degli ecclissi di Luna e di sol

    Introduction

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    The introductory essay briefly reviews the sources of the scarce biographical information available about Benjamin Humphrey Smart and focusses on the eulogistic judgement about the author of the "Outline of Sematology" (the first published part of Smart’s "Beginnings of a New School of Metaphysics") expressed by John Stuart Mill in his "System of Logic", in order to present and evaluate the chief aspects of Smart’s comprehensive view of the phenomena of language and thought and their interconnections. Following Locke, metaphysics is conceived of by Smart as an enqiry "into the Original, Certainty, and Extent of humane Knowledge", but in his opinion it was Horne Tooke, who, a century later, fully appreciated the importance of words and "did question" the notion, "taken for granted by Locke", that "the parts of speech have their origin in the mind independently of the outward signs, when, in truth, they are nothing more than parts in the structure of language". On these grounds, Smarts develops an original generative theory of the parts of speech, that he illustrates by the use of revertible tree-diagrams. The essay proceeds with an exposition of Smart’s semantical views and his theory of the function of language in the process of reasoning, to conclude with an appraisal of his historical merits promptly acknowledged by no lesser examiner than John Stuart Mill

    Sant’Anselmo, la teologia, la logica e la storia della logica

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    The connection between logic and theology in St Anselms 's thought proves a case for the history of logic in generaI, namely that it is impossible to provide a satisfactory account of the calculative powers of the mind by ignoring the whole range of its intellective activities. Accordingly, a survey of ancient discussions on transcendent forms proves itself to be a necessary prerequisite for the understanding of Anselm 's conception of the import ofparonymous terms, which in turn cogently supports Karl Barth's intimation of a "noetic" vs "ontic" discernment of Anselm 's well-known "id quo nihil maius cogitari potest"

    A revision of the South African katydid genus Austrodontura Fontana & Buzzetti (Orthoptera: Tettigoniidae: Phaneropterinae)

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    The South African genus Austrodontura Fontana & Buzzetti of brachypterous katydids is revised. A. capensis (Walker, 1869) is redescribed and A. castletoni sp. n. from the Eastern Cape Province is described, A. raggei Fontanta & Buzzetti is considered a junior synonym of A. capensis. Acoustic behavior of A. castletoni is described. Copyright © 2011 · Magnolia Press.Articl

    Hydrometra williamsi Hungerford & Evans 1934

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    Hydrometra williamsi Hungerford & Evans, 1934 Hydrometra williamsi Hungerford & Evans 1934: 97. H. williamsi: Drake & Lauck 1959: 52. H. williamsi: Froeschner 1981: 39. H. williamsi: Heckman 2011: 263. Material examined. ECUADOR: Napo, WP 10, E. S. Yasuni transecto, 2-5.V. 2002, F.M. Buzzetti legit, 1 3 apterous, FMB. Notes. Known only from Ecuador.Published as part of Cianferoni, Fabio & Buzzetti, Filippo Maria, 2012, The genus Hydrometra Latreille in Ecuador with description of a new species (Hemiptera: Heteroptera: Gerromorpha: Hydrometridae), pp. 55-62 in Zootaxa 3274 on page 56, DOI: 10.5281/zenodo.21398

    ‘Il limite che mi conteneva nell’ordine’. Emilio Cecchi ‘odeporico’ fra le ere: Messico (1932)

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    Emilio Cecchi (1884-1966) reached the United States in August 1930 as a visiting professor at the University of California, Berkeley. At this occasion, he visited Mexico, passing through Arizona and New Mexico. Out of this experience, Messico (1932) was born. The book is the author’s first literary reportage: a collection of prose texts that had previously been published in the Milanese newspaper Corriere della Sera. This article focuses precisely on the transition from the essay form, which the author had successfully experimented with in his first collection, Pesci rossi (1920), to the literary reportage. It investigates some of the (inter)textual and conceptual characteristics of Messico, as a result of this transition. To begin with, we will look at the influence of Henri Bergson’s theories on time; we will then move on to the importance that essays on film montage had on the prose and structure of Messico; in particular, we will consider the writings of Sergei Michajlovič Ejzenštejn, whom Cecchi knew from his earliest translations. We will then conclude with a reflection on the influence that Carlo Cattaneo, with his essay Gli antichi messicani, had on Cecchi (and on Messico) in terms of method and style

    Hydrometra aequatoriana Cianferoni & Buzzetti, 2012, n. sp.

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    Hydrometra aequatoriana n. sp. Material examined. ECUADOR: Pichincha, Rio Toachi (residual pools on river shore), La Unión del Toachi, 850 m, 0° 18 ’ 57 ”S 78 ° 57 ’ 15 ”O, 22.VI. 2009, F. Cianferoni legit, 2 3 macropterous, 1 3 brachypterous. Type depository. 1 3 macropterous (Holotype) in MZUF (collection number 839); 1 3 macropterous (Paratype), CFC; 1 3 brachypterous (Paratype), FMB. Type locality. Ecuador, Pichincha, Rio Toachi, La Unión del Toachi. Diagnosis. The male of this species is characterized by a distinct concavity between the VIth and VIIth sternites (Fig. 1), and a peculiar disposition of acetabular pits (Fig. 2): anterior (1 / 1), middle (2 / 2), hind (4), that differs from other species (see Tab. 1 for a comparison with H. adnexa Drake, 1956). Anterior acetabula Middle acetabula Hind acetabula Anterior Posterior Anterior Posterior Anterior H. adnexa 1 1-2 1 1 2-3 H. aequatoriana 1 1 2 (1 + 1) 2 4 Description. Colour. Dorsal and ventral ground colour light brown (fixed specimens). Body surface with very small black spinules, hardly visible, especially concentrated on distal head swelling and on ventral abdominal surface, absent from the abdominal tergites, which also appear shinier. Long golden hairs present on terminal abdomen. White silver setae forming spots between lateral sides of tergites (depending by illumination). Thin bright setae present on entire body, head, legs and antennae. Pronotum with darker rings and a lighter pit in the centre. Anteclypeus brown, maxillary plates darker. Gular lobe and rostrum translucent. Legs yellowish brown, darker at the distal portion of femora and tibiae. Tarsi brown. Structure. Overall length: macropterous male 9.1–9.5, brachypterous male 9.0; females unknown. Head long (2.80–2.95), wider just before antennal tubercles (0.38–0.40). Maxillary plate irregular and slightly hollow. Gular plate rounded, keeping base of rostrum. Rostrum curved reaching about middle of postoculus. Anteoculus to postoculus ratio 1.67–1.73 / 0.88–0.93. Interoculus shorter than half eye diameter. Anteclypeus triangular with rounded or slightly pointed tip. Antennal article I (0.57), II (0.97). Prothorax with a row of pits on the anterior lobe, forming collar. Scattered pits on the posterior lobe, forming a longitudinal line in the middle. Pronotum length 1.40–1.57. Distance between coxae I and II: 0.67–0.83, between coxae II and III: 0.97–1.27. Anterior acetabula with one pit on anterior and posterior parts; middle acetabula with two pits on anterior (one is very marginal) and posterior parts; hind acetabula with four pits in the anterior part. Propleuron with one row of 6–7 pits arranged as in illustration (Fig. 2). Proportions of legs: femur, tibia, tarsal I, tarsal II, tarsal III. Fore leg: 4.00– 4.20 / 4.55–4.80 / 0.07 / 0.23–0.27 / 0.17–0.20. Middle leg: 3.00– 3.35 / 3.25–3.50 / 0.07 / 0.27–0.30 / 0.17–0.23. Hind leg: 2.95 / 3.05-3.15 / 0.07 / 0.20–0.25 / 0.20–0.23. Abdomen length (male): 4.80-5.10. VIIth sternite with long hairs. Sporadic long hairs also on previous sternites. Distinct concavity between VIth and VIIth sternite (Fig. 1). Male terminalia as in Fig. 1. Sternite VIII with two tufts of hairs, one on each side. Distribution. Known only from the type locality. Ecuador, Pichincha, Toachi River. Etymology. From the Latin adjective for Ecuador. Comparative notes. Hydrometra adnexa Drake, 1956 from Panama, described on the basis of a single apterous female and to date known only from the type, is apparently quite similar to our male specimens. The arrangement of acetabular pits given for the female of H. adnexa is not so different (considering the variability of this character) from that present in H. aequatoriana n. sp. males (Tab. 1). The major difference between the two species is the distribution of black spinules on the body surface: such spinules are present on body surface of H. aequatoriana n. sp. almost exclusively on the distal swelling of the head and the ventral surface of the abdominal segments (especially the last three segments), with scattered spinules on the remaining surfaces, and absent from the dorsal surface. In H. adnexa, by contrast, such spinules are more uniformly distributed and present also on the dorsal body surface, especially on the pronotum. We have examined other New World species of Hydrometra and found these spinules to be present in both sexes of all species, with identical patterns of distribution in both males and females. We therefore separate H. aequatoriana n. sp. from H. adnexa on the basis of the different pattern and extent of black spinules distribution, concluding that our material does not represent the currently undiscovered male of H. adnexa. Body colour also seems to be helpful in separating New World Hydrometra, because most species have a distinctive colour pattern. In general there are species with dark body colour (e.g. H. caraiba Guérin-Méneville, 1857, H. williamsi Hungerford & Evans, 1934 and others) and species with light body colour (e.g. H. argentina Berg, 1879). The body colour of H. adnexa is dark brown, while in H. aequatoriana n. sp. it is light brown. After the examination of hundreds of specimens belonging to eight species of New World Hydrometra, we conclude that there is little if any intraspecific variability in the ground body colour of Neotropical Hydrometra species. Furthermore, in every species examined there is no difference between male and female body colour. Therefore, the colouration of the body further separates H. aequatoriana n. sp. from H adnexa and reinforces the conclusion that our material can not be the undescribed male of H. adnexa. Finally, based on our current status of knowledge, the genus Hydrometra in the Neotropical region contains more than thirty species: 15 in Central America and 19 in South America. Only a few species are distributed across the two areas: H. argentina and H. caraiba have a very wide range, while H. comata Torre-Bueno, 1926, H. guianana Hungerford and Evans, 1934, Hydrometra thomasi Mychajliw, 1961 and H. zeteki Drake, 1952 seem to be more circumscribed between Central and South America. Considering the New World Hydrometra (39 spp.) as a whole, most of them are distributed in Central America or South America, with only two species present in both Central and South America. The majority of the New World species have distributions restricted to South or Central America, but not both, so we believe that our material represents a new South American species similar to H. adnexa.Published as part of Cianferoni, Fabio & Buzzetti, Filippo Maria, 2012, The genus Hydrometra Latreille in Ecuador with description of a new species (Hemiptera: Heteroptera: Gerromorpha: Hydrometridae), pp. 55-62 in Zootaxa 3274 on pages 56-58, DOI: 10.5281/zenodo.21398

    Cohnia andeana Buzzetti & Fontana & Carotti 2010, comb. nov.

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    Cohnia andeana (Hebard, 1924) comb. nov. Dichopetala andeana Hebard, 1924: 195. Dichopetala andeana: Rehn, 1955: 1. Type locality and type material: Ecuador, Loja province, Loja. Elevation 7284 feet (2220 meters), (F. Campos Leg.) (Hebard Collection, Type no. 979, ANSP) 1♂ type, 1♀ allotype, 4♂ and 2 ♀ paratypes. Material examined: Ecuador, Loja prov., Catamayo, 1500 m, 27–28/IV/2005, 11♂, 21♀. G. Carotti & B. Agabiti leg., FMB; idem, 4♂, 6♀, PF; Ecuador, Loja prov, Catamayo, 1653 m, S 03°59’37.7’’ W 079° 19’ 45.9’’, 1/V/2006, 4♂, 4♀. F. M. Buzzetti, G. Carotti & A. Marzotto leg., FMB; idem, 1♂, PF. Redescription. Male (Fig. 3): Head round with fastigium weakly developed. Pronotum (Fig. 5, 6) smooth without humeral sinus, typical sulcus behind the middle, fore and hind margins of pronotal disc straight, the fore sometimes more or less emarginated. Tegmina (Fig. 5, 6) squamiform, ovate, with campus mediocubitalis constituting about half of tegmen total length. Hind wings extremely reduced but present. Stridulatory file (Fig. 20, 30, 31) about 1,5 mm long and with about 60 pegs arranged in a regularly curved row. The size of the stridulatory pegs decrease while their density increase toward the proximal end of the file. Genicular lobes unarmed, except for the lower lobes of fore and mid legs bearing a very small spine, in some case also the upper genicular lobe bears a very small spine. Tenth tergite (Fig. 16, 27) caudally emarginated and impressed. Epiproct caudally rounded. Cerci (Fig. 9, 11–13, 16, 27) distally tapering in a blunt dark tooth, apical third inward curved. Subgenital plate (Fig. 10) tricarinated, apically emarginated. Internal genitalia (Fig. 18, 19) more or less sclerotized, titillators-like. Female (Fig. 4): Same as male, except for larger size. Tegmina without stridulatory apparatus. Cerci (Fig. 14) conical. Ovipositor (Fig. 15) with distal half serrulated, more strongly on the distal third. Subgenital plate (Fig. 21, 24) entire, basal and distal margins emarginated, lateral margins convex, apex truncated, longitudinally carinated in the middle. Colour: The specimens we examined closely agree with original description (Hebard 1924). Most of the specimens are dark olive green in general coloration, only three are completely green. Dorsal colour deeper than in lateral body surface.. Pronotal disc with median longitudinal yellow line. Lateral carinae of pronotum white. More or less defined trapezoidal markings are present on the middle of each abdominal tergite. Limbs green except in the darker specimens in which the legs are almost completely black. Male cerci completely yellow, except for the apical black tooth. Ovipositor green, in melanic females the apex is darker. FIGURES 32–33. Oscillogram of C. andeana. 32: calling song; 33: echemes. Measurements of male: body length 17.84–13.57 (15.70), pronotum length 3.37–2.59 (3.08), caudal width of pronotum 3.18–2.55 (2.89), tegmina length 3.75–3.15 (3.42), hind femur length 16.73–14.52 (15.93), cerci length 1.5–1 (1.33). Measurements of female: body length 23.69–18.71 (21.27), pronotum length 3.75–2.75 (3.16), caudal width of pronotum 3.15–2.62 (2.88), tegmina length 3.65–3 (3.28), hind femur length 17.25–14.56 (16.29), ovipositor length 7.12–5.69 (6.25). Ecology. During recent expeditions in Ecuador, an abundant population of D. andeana was found in locality Catamayo, 35 km West of Loja. In the area (Fig. 2), the species inhabits the “paramo arbustivo” environment with very dense vegetation of bushes and low trees. Specimens were collected on all kind of vegetation, from the lowest grasses to the bushes, except of the arborescent vegetation. Many individuals were found also on the grassy vegetation along the road to Loja. The new collecting locality is different, at a lower elevation, from the type locality. According to the information given by Hebard (1924), the type locality is “ Loja ”, more probably in the surroundings of the town. However the actual environments near Loja are different from that of the new locality, being characterized by vegetation typical of higher elevation. No researches has been carried in the higher surroundings of Loja and it’s not possible to say if the species still inhabits the places near Loja. The 27–28 April 2005, during 2 hours of visit in the locality, 42 adult specimens of the species has been observed and collected (13 males and 29 females), 5 young females were observed but not collected. One year later, the first May 2006, 28 adult individuals were observed (17 males and 11 females), 3 young females observed. In the original description, no information are given on the collecting period of the type material. Our samplings in the locality where C. andeana is present, were carried on February, April and May. Since in February no individuals were noted, neither adult nor young, the phenology of the species appears to be restricted to the dry season months, from late April to September approximately. Further samplings during the end of the dry season are necessary to determine the true phenology of the taxon. Bioacoustics. The song (Fig. 32, 33) of Cohnia andena comb. nov. consists of short series of paired polysyllabic echemes audible by the unaided ear. Such paired echemes are repeated 3–4 times in 3–4 sec, each pair of echemes lasts for 0.35 sec and is separated from the following by an interval of 1.9–2.4 sec. Echemes are composed by 4–8 dyplosyllables of different intensity and last for 0.03–0.05 sec. Diplosyllables consist of hemisyllables apparently equal in length (about 0.001 sec). This song structure is different from that observed in Dichopetala s. str., confirming the generic diversity of Cohnia g. nov. Singing activity was observed in laboratory conditions only during a restricted time in the morning, approximately between 9 and 11 a.m., with natural light. All the song emitted by males in different conditions, alone or with other male or female specimens in the same cage, were similar, therefore the presence of other individuals seems to have no effects on song. These males were probably young singers, since some nymphs were observed in the population examined and the first song was emitted by captive males seven days after capture.Published as part of Buzzetti, F. M., Fontana, P. & Carotti, G., 2010, Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov. (Insecta: Orthoptera: Tettigoniidae), pp. 59-68 in Zootaxa 2661 (1) on pages 61-67, DOI: 10.11646/zootaxa.2661.1.4, http://zenodo.org/record/530259
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