1,430 research outputs found
Thecomyia signorelli Marinoni and Steyskal, new species
No full text11. Thecomyia signorelli Marinoni and Steyskal, new species (Figs. 16, 28, 41, 42) Description. Adult. Upper orbital seta well developed. Frontoorbital spot subtriangular, width approximately 1 / 4 of frontal width. Rostrum 0.570.64 in males as high as eye. White microtomentose infraocular marking forming irregular triangle, apex reaching to about 1 / 2 of gena; margin between gena and postgena slightly curved. Mid femur without anteromedial seta. Mid and hind femora wholly yellowish. Mesonotum with medial stripe tripartite or evanescent anteriorly, yellow only for short distance before scutellum, otherwise gray. Ejaculatory apodeme wide apically, posterior margin concave; anterior margin almost straight (Fig. 16). Phallapodeme short, almost straight. Anterior basiphallic process pointed forward. Epiphallus not extending to base of distiphallus. Distiphallus with one digitiform extension, apex membranous. Hypandrium in lateral view with dorsal margin convex, anteroventral margin narrow, rounded (Fig. 28). Anteroventral hypandrial plates in dorsal view with margins rounded. Membranous projections at margins of anteroventral hypandrial plates not extending to lateral margins of hypandrium; covered with minute hairs (Fig. 28). Posterior and anterior surstyli distinct; posterior clawlike, pointed (Fig. 16). Type specimens. HOLOTYPE MALE. 1. Brown rectangular label: [BRAZIL] "Est. S. Paulo, Avanhandava, Barra Mansa, Barreto Col. 2946 "; 2. White rectangular label with black borders: " Thecomyia # 9, handwritten in black ink, d. G. Steyskal' 69 " (MZSP). PARATYPE MALE. 1. White rectangular label: [BRAZIL] "Córrego Azul, Araçatuba, SP, III. 1947, M.P. Barreto", handwritten in black, 1 male (MZSP). PARATYPES. 1. Small rectangular white label: [ECUADOR] "Coca, Napo R., Napo, ECUADOR, V. 1965, 250 m., L. Peña, 2 m. (CNC). Etymology. The species epithet, signorelli, is an apost name to recognize the contributions of the Signorelli family to L. Marinoni's studies, and the many gracious acts of Julieta and Lucrécia Signorelli.Published as part of Marinoni, Luciane, Steyskal, George C. & Knutson, Lloyd, 2003, Revision and cladistic analysis of the Neotropical Genus Thecomyia Perty (Diptera: Sciomyzidae), pp. 1-36 in Zootaxa 191 on page 26, DOI: 10.5281/zenodo.15685
Thecomyia autazensis Marinoni and Steyskal, new species
No full text5. Thecomyia autazensis Marinoni and Steyskal, new species (Figs. 10, 22, 34, 41, 43) Description. Adult. Upper orbital seta absent. Frontoorbital spot rounded, width approximately 1 / 4 frontal width. Rostrum 0.640.7 in males and 0.680.8 in females as high as eye. White microtomentose infraocular marking forming a triangle with margin between gena and postgena sinuous. Mid femur without anteromedial seta. Mid and hind femora wholly yellowish. Mesonotum with medial tripartite stripe evanescent anteriorly, yellow only for short distance before scutellum; scutellum golden yellow. Ejaculatory apodeme wide apically, anterior margin slightly sinuous, posterior margin concave (Fig. 10). Phallapodeme slightly sinuous. Anterior basiphallic process almost symmetrical, with 3 pronglike extensions. Epiphallus short not extending to base of distiphallus. Distiphallus without long slender prongs, wide, apex tetracuspid. Hypandrium in lateral view with dorsal margin almost straight and anteroventral margin narrow, rounded (Fig. 22). Anteroventral hypandrial plates in frontal view very wide. Membranous projections of margins of anteroventral hypandrial plates extending to lateral margins of hypandrium, covered with minute hairs (Fig. 22). Posterior and anterior surstyli distinct; anterior surstylus very short, fingerlike; posterior surstylus well developed, anterior margin almost convex, apex not so pointed (Fig. 10). Female sternites 6, 7 and 8 almost fused, suture between 6 and 7 + 8 visible; wider than long and with the anterior margin of sternite 6 sinuate; mid longitudinal portion less sclerotized. Spermathecal duct with sclerotized region joining spermatheca short, wide; apical, digitiform projection broad at base, short (Fig. 34). Type specimens. HOLOTYPE MALE. 1. Small rectangular label: [BRAZIL] "Rio Autaz"; 2. Small rectangular label: "Amazon Roman [col.]" (USNM). PARATYPES. The same labels as on the holotype, 11 m. and 2 f. (USNM); 2 m. and 1 f. (DZUP). Etymology.The specific epithet, autazensis, is a reference to the species typelocality, Autaz River (Amazon). Comments. In the labels of the examined specimens the only information about the place where they were collected is “Rio Autaz”. In Amazonas (Brazil) there are two rivers named Autaz: AutazAçu and AutazMirim, both very close from each other. Trying to figure out where the specimens were collected for sure we have consulted Aurivillius (1929) that explains the A. Roman trip to Amazonas during the periods 19141915 and 19231924. Unfortunately there is no other indication that could be useful to solve the doubt: the author cited the locality as Rio Autaz also.Published as part of Marinoni, Luciane, Steyskal, George C. & Knutson, Lloyd, 2003, Revision and cladistic analysis of the Neotropical Genus Thecomyia Perty (Diptera: Sciomyzidae), pp. 1-36 in Zootaxa 191 on pages 21-22, DOI: 10.5281/zenodo.15685
Anastrepha Ramos & Norrbom & Marinoni & Sutton & Steck & Sánchez 2021, n. sp.
No full text60. Anastrepha n. sp. 2 Distribution in Bolivia: Cochabamba (this publication). New specimen data: Bolivia: Cochabamba: Carrasco, Majosal, 17.091713°S 64.825040°W, 225 m, McPhail trap 14, 29 Jun 2005, E. Quisberth, G. Zárate & A. Saldaña, 1♀ (MNKM).Published as part of Ramos, Elizabeth Quisberth, Norrbom, Allen L., Marinoni, Luciane, Sutton, Bruce D., Steck, Gary J. & Sánchez, Juan José Lagrava, 2021, The Bolivian fauna of the genus Anastrepha Schiner (Diptera: Tephritidae), pp. 43-64 in Zootaxa 4926 (1) on page 58, DOI: 10.11646/zootaxa.4926.1.3, http://zenodo.org/record/450058
Response time analysis for G-EDF and G-DM scheduling of sporadic DAG-tasks with arbitrary deadline
No full textNew programming models have been proposed to exploit the parallelism of modern computing architectures. Also in the real-time domain more detailed task models are under evaluation to provide a tighter analysis of parallel application with precedence and timing constraints. This paper presents two schedulability tests based on Response Time Analysis for determining whether a set of sporadic DAG-tasks with arbitrary deadlines can be scheduled by G-EDF or G-DM on a platform consisting of m identical processor. The first test is a simple polynomial time test, while the second one is a pseudo-polynomial time test. Our tests exploit the combinatorial properties of the DAGs by considering the interference experienced by each vertex. We describe a set of simulations showing that our tests outperform the tests described in [7] in terms of schedulability ratio and running time. We also provide resource augmentation bounds for our polynomial time test when considering single-DAG systems
Oreodera candida Marinoni & Martins 1978
No full text57. Oreodera candida Marinoni & Martins, 1978 Distribution: Brazil (Pernambuco, Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina). Material examined: BRAZIL, Paraná, Céu Azul, 700 m a.s.l., 25 o 04’09”S, 53°39’35”W. Canopy, Light trap (Luiz de Queiroz), 2 males, 14.X.2015, R.C. Barros, V.E. Vendramini & J.P.B. Pine leg. (MZUEL).Published as part of De Barros, Rafael C., Da Fonseca, Mailson G., Vendramini, Vinicius E. & De Arvarenga Julio, Carlos E., 2019, Species of Lamiinae (Insecta, Coleoptera, Cerambycidae) from east Paraná State (Brazil), with new geographic records, pp. 179-204 in Zootaxa 4545 (2) on page 187, DOI: 10.11646/zootaxa.4545.2.2, http://zenodo.org/record/261877
Investigation on the gemological, physical and compositional properties of some green opals from Eastern Rhodopes, Bulgaria
No full textAbstract: The physical and compositional properties of some common opals from Eastern Rhodopes, Bulgaria have been investigated through several methodologies such as optical and gemological equipments, X-Ray Powder Diffraction (XRPD), Scanning Electron Microscopy (SEM), Raman Spectroscopy and Laser Ablation Microprobe (LA-ICP-MS). The investigated opals show different colors such as light-apple and yellowish green; the diaphaneity is opaque or opaque/translucent with luster waxy/dull/greasy. They are inert to the long and short wavelength UV radiation (366–254 nm). Refractive index and specific gravity values are between 1.445–1.470 and 1.96–2.09 g/cm3, respectively. XRPD analyses show the opals are CT type and in some cases contain quartz and clay minerals (saponite). Fe and, subordinately, V appear the main chromophores that determine the green-yellowish color, while Ni is responsible for the apple and light green. Other detected trace elements are Al, Ca, K, Mg, Na, B, Zn, Rb. SEM analysis shows three types of structures already observed in the CT opals like randomly distributed nanograins and lepispheres, mammillary structure, channels structure made up by bundles of fibers. Raman spectra confirm the samples are made up by para-crystalline CT-opal, generally considered of volcanic origin, with significative content of saponite. Graphic abstract: [Figure not available: see fulltext.
Neoephydra penai Mathis & Marinoni, 2016, sp. nov.
No full text19. Neoephydra penai sp. nov. Figs. 85–87, Map 19 Diagnosis. Specimens of N. penai are distinguished from similar congeners of the araucaria group by the following characters: appearance generally dark, particularly the legs; face moderately setose; gena moderately short; and structures of male terminalia with distinctive conformation. Medium-sized to moderately large shore flies, body length 3.90–4.10 mm; generally dull, grayish brown to gray with some subshiny areas dorsally. Head: Head ratio 0.65–0.71; frontal ratio 0.52–0.55; mesofrons with dark brownish green, metallic luster, generally pilose; ocellar triangle and parafrons nearly concolorous, microtomentose, brownish gray to charcoal gray; parafrons becoming more charcoal colored anteriorly; fronto-orbits with narrow strip through insertions of fronto-orbital setae subshiny, with some faint metallic reflections; number of fronto-orbital setae 2. Antenna mostly concolorous, blackish brown. Facial ratio 1.0; mostly moderately setulose particularly along oral margin and toward posteroventral portions of face; dorsum of interfoveal hump with subshiny area more or less concolorous with mesofrons, otherwise face densely microtomentose, yellowish gray, gradually paler ventrally. Eye ratio 0.95– 0.97; gena-to-eye ratio 0.31–0.35; gena moderately short, coloration gray to whitish gray but with faint tinges of olivaceous green posteriorly. Thorax: Mostly microtomentose; mesonotum mostly brownish green, darker and subshiny posteriorly; anterior margin microtomentose, gray to bluish gray; pleural areas paler, more gray to faintly bluish or greenish gray ventrally; anepisternum with dorsal margin faintly brownish, otherwise faintly bluish gray; other pleural areas including coxae mostly whitish to bluish gray, concolorous. Wing length averaging 3.10–3.21 mm; mostly faintly infuscate, palely grayish brown; costal vein ratio 0.27–0.29; M vein ratio 0.74–0.77. Legs dark generally; femora gray, microtomentose, only slightly darker than ventral pleural areas; tibiae and tarsi, mostly reddish yellow, thinly microtomentose. Abdomen: Generally microtomentose and unicolorous, grayish olivaceous green to gray, becoming paler toward lateral margins, some specimens with faint bluish tinges of metallic luster; ventral surface of tergites frequently whitish gray. Fifth tergite of male somewhat trapezoidal, truncate apically. Male terminalia (Figs. 85– 87): margins of epandrium in posterior view very gradually narrowed posteriorly, rounded dorsally; surstyli in posterior view as 2 moderately robust, digitiform processes, with narrow but distinct gap between, lateral margins slightly concave; surstylus in lateral view with short, blunt, lateral prong at basal 1 / 3, lateral prong bearing robust tuft of long setulae, extended surstylar process robustly elongate, curved subapically, generally digitiform process. Type material. The holotype male is labeled “Vegas del Flaco Talca, CHILE. 29. XI. 1957 [29 Nov 1957] L. E. Peña./ HOLOTYPE Neoephydra penai Mathis [red, handwritten].” The holotype is glued to the side of a pin, is in good condition (several setae are missing or are partially displaced), and is deposited in the CNC. The allotype female and one paratype (♂) are labeled with the same label data as the holotype. Type locality. Chile. Talca: Vegas del Flaco (34 ° 56 'S, 70 °02'W). Distribution (Map 19): Neotropical: Chile (Talca), Neoephydra penai is known only from the type locality. Etymology. The specific epithet, penai, is a genitive patronym to honor Mr. Luis E. Peña G., collector par excellence, facilitator and enthusiast of Chilean entomology, and friend. MAP 19. Distribution map for Neoephydra penai sp. nov.Published as part of Mathis, Wayne N. & Marinoni, Luciane, 2016, Revision of Ephydrini Zetterstedt (Diptera: Ephydridae) from the Americas south of the United States, pp. 1-110 in Zootaxa 4116 (1) on pages 63-64, DOI: 10.11646/zootaxa.4116.1.1, http://zenodo.org/record/25732
In-depth study of pigments: development of a new analytical protocol with SR-μTXRD
No full textAcquiring as many as possible information from heterogeneous micro samples of Cultural Heritage material, and specifically from painting stratigraphies, is an analytical challenge that leads to an increasing need to develop innovative analytical protocols, relying on the use of unconventional sources, such as synchrotron radiation.
In our research project, we aimed to optimise the experimental set-up for the use of synchrotron radiation micro-X-ray powder diffraction in transmission geometry (SR-μTXRD) to develop a targeted protocol useful to analyse, with a high spatial resolution, the crystalline phases of pigments.
The high potential of SR-μTXRD technique (carried out at the XRD1 beamline of the Elettra synchrotron (Basovizza, Italy) has been applied to lab-made, polychrome stratigraphies. We prepared samples as similar as possible to real painting stratigraphies: materials with 4 to 6 layers (a few tens of microns thickness) composed of a coarse and fine grain size mixture of crystalline phases such as carbonates, silicates, oxides and clay minerals.
From the dataset acquired, qualitative and quantitative observations were performed, considering for each pattern the different structural features, the abundance, and the grain size of the pigment phases. Such analytical approach, that combines a spatially resolved investigation with a high-quality mineralogical characterization, has provided data of remarkable importance for investigating morphological, structural and crystallographic characteristics of pigments, often hardly analysable inside multi-layered systems
Conservation of feline semen : Part II: Cold-induced damages on spermatozoal fertilizing ability
No full textDuring the conservation of feline semen, the freeze-thaw procedure in particular is responsible for inducing severe spermatozoal damage, which diminishes fertilizing ability. Therefore, cold-induced damage represents a limiting factor for the conservation of semen, particularly semen from felids, which are often affected by teratospermia. In this article, feline sperm characteristics are reported, with special reference to motility and morphology, which are more likely to be affected by conservation protocols; and moreover, the causes of cold-induced damages are described. Attention has been focused on methods to evaluate functional integrity of spermatozoa, and those applied to cat semen are reviewed. Among these, a rather recently developed technique involves fluorescent staining methods, and in particular chlortetracycline. The chlortetracycline assay applied to cryopreserved cat epididymal sperm shows that it is suitable to evaluate the functional status of cat sperm
FIGURE 2. Individual tracks, g through n in Track analysis of the Neotropical genus Sepedonea Steyskal (Diptera: Sciomyzidae): a proposal based on the phylogenetic analysis of its species
No full textFIGURE 2. Individual tracks, g through n: g — S. lindneri; h — S. guatemalana; i — S. giovana; j — S. guianica; l — S. telson; m — S. incipiens; n — S. trichotypa.Published as part of Pires, Amanda Ciprandi, Marinoni, Luciane & Carvalho, Claudio José Barros De, 2008, Track analysis of the Neotropical genus Sepedonea Steyskal (Diptera: Sciomyzidae): a proposal based on the phylogenetic analysis of its species, pp. 21-34 in Zootaxa 1716 (1) on page 24, DOI: 10.11646/zootaxa.1716.1.2, http://zenodo.org/record/510767
- …
