114,452 research outputs found
Genieridium Vaz-De-Mello 2008
No full textKey to species of Genieridium 1. Eyes hidden dorsally (Fig. 64). Central Colombia......... 6.5. G. medinae (Gill & Vaz-de-Mello, 2004) -. Eyes small but visible dorsally............................................................................................................. 2 2(1). Clypeal teeth lacking (Figs. 57, 68)...................................................................................................... 3 -. Two clypeal teeth present...................................................................................................................... 4 3(2). Elytral striae without evident punctures. Venezuela.......................... 6.2. G. bordoni (Martínez, 1992) -. Elytral striae with ocellated punctures. Southern Brazil..................... 6.6. G. paranense (Arrow, 1932) 4(2). Clypeal teeth very acute, sides almost parallel in the apical part (Figs. 60, 70).................................... 5 -. Clypeal teeth obtuse, short, and equilateral (Figs. 55, 62).................................................................... 6 5(4). Clypeal teeth arising from below clypeal margin (Fig. 60). Central Brazil, Northern Argentina, Paraguay and Bolivia.................................................................................... 6.3. G. cryptops (Arrow, 1913) -. Clypeal teeth at same plane as clypeal margin (Fig. 70). Southeastern Brazil.................................................................................................................. 6.7. G. zanunciorum (Vaz-de-Mello & Canhedo, 1998) 6(4). Elytral striae straight, without punctures. Central Brazil and Paraguay................................................................................................................................................................ 6.1. G. bidens (Balthasar, 1938) -. Elytral striae marked by inconspicuous punctures that make striae appear sinuated. Northeastern and Central Brazil....................................................... 6.4. G. margareteae (Génier & Vaz-de-Mello, 2002)Published as part of Vaz-De-Mello, Fernando Z., 2008, Synopsis of the new subtribe Scatimina (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini), with descriptions of twelve new genera and review of Genieridium, new genus, pp. 1-75 in Zootaxa 1955 on pages 27-2
Myrmecobius Mello-Leitao, 1923, g. n.
No full text<p>Myrmecobius g. n.</p> <p>Aos caracteres ja referidos na diagnose da subfamilia juntar: Cephalothorax pouco elevado, bastante estreitado adiante, de sulco thoracico longitudinal regularmente allongado. Olhos posteriores iguaes, em linha direita, os medios muito mais afastados um do outro que dos lateraes respectivos. Olhos anteriores em fila igualmente direita, mais estreita que a posterior, os medios mais de quatro vezes maiores que os lateraes, equidistantes. Area dos olhos medios bem mais larga que longa, muito mais estreita adiante. Clypeo largo, de altura igual ao diametro dos olhos medios anteriores. Espe- cie typo:</p>Published as part of <i>de Mello-Leitao, C., 1923, Arachnideos da Ilha dos Alcatrazes., pp. 3-8 in Revista do Museu Paulista 13</i> on page
Mello, homo faber nell'era dell'industria del design sperimentale a Torino
No full textFranco Mello, l’artista, il grafico, il designer, il regista televisivo, personaggio prolifico e poliedrico, proiettato nella dimensione industriale del design sperimentale degli anni '70 e '80. Mello progetta oggetti pensiero, a volte industriali e a volte artigianali, interpreti di una valutazione storico/politica del quotidiano, che vengono letti dal pubblico come esuberanti, ironici, talora inutili, comunque simpatici, mai irritanti. Il saggio osserva e descrive la figura di Mello designer in particolare e il suo posizionamento nel gruppo di designer che in quegli anni sono attivi a Torino, vicini ai movimenti del Radical Design, della Pop Art americana, dell'Arte Povera e delle opere manifesto politico
Trichillum pseudoarrowi Vaz-de-Mello & Genier 2005
No full text17.10. <i>Trichillum pseudoarrowi</i> Vaz-de-Mello & Génier, 2005 <p> <i>Trichillum arrowi</i> (misidentification, not Saylor, 1935): Pereira & Martínez 1959: 453–458; Forsyth <i>et al.</i> 1998: 371; Spector & Ayzama 2003: 399</p> <p> <i>Trichillum (Trichillum) arrowi</i> (misidentification, not Saylor, 1935): Martínez 1969: 123, 127; Verdú & Galante 1997: 96 <i>Trichillum pseudoarrowi</i>: Vaz-de-Mello & Génier 2005: 49–50; Hamel <i>et al.</i> 2006: 12.</p> <p> Type series: Holotype ♂: PARAGUAY: <b>Boquerón:</b> Gran Chaco, km 145 de Pto. Casado, 25-XI-1950, A. Martínez (CMNC).</p> <p> Paratypes: BOLIVIA: <b>Tarija?:</b> Boyoiú, IV-1949, Daguerre (1 CMNC); PARAGUAY: <b>Boquerón:</b> Gran Chaco, km 145 de Pto. Casado, XI-1950, A Martínez (1 BDGC); 25-XI-1950 (8 CMNC); 25-XI-1950 (1 FVMC); <b>Concepción:</b> Horquetá, IV-1934, Schultze (2 CMNC).</p>Published as part of <i>Vaz-De-Mello, Fernando Z., 2008, Synopsis of the new subtribe Scatimina (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini), with descriptions of twelve new genera and review of Genieridium, new genus, pp. 1-75 in Zootaxa 1955</i> on pages 52-5
Luederwaldtia Mello-Leitao, 1923, g. n.
No full text<p>Luederwaldtia (1) g. n.</p> <p>Typo: L. serripes</p> <p>Comoro occular sob a forma de uma elevacao transversa, cora dois espinhos altos, approximados, e a quasi igual distancia da borda anterior do cephalothorax e do primeiro sulco transversal do escudo dorsal. Escudo dorsal com cinco sulcos transversaes, dos quaes os dois primeiros (I e II) e os dois ultimos (IV e V) sao unidos por um sulco longitudinal mediano. Cephalothorax estreito; as bordas lateraes do escudo abdominal sao curvas e afastam se a partir do sulco 1 ate o nivel do sulco IV, e novamente se approximam, formando atraz, com a borda posterior, angulos rectos. Areas I, II, IV e V do escudo abdominal inermes, bem como os tres segmentos livres na placa anal-dorsal; area III do escudo abdominal com dois fortes espinhos ponteagudos. Ancas dos tres primeiros pares de pernas pequenas, paralletas; anca posterior duas vezes maior e mais espessa que as tres primeiras reunidas. Cheliceras normaes. Palpos mais curtos que o corpo; o femur armado de um espinho apical interno. Pernas curtas e fortes; caracteres sexuaes accessorios sob a forma de fortes dentes e espinhos nos segmentos basaes das pernas posteriores. Tarsos anteriores de 5 segmentos, os outros de seis; segmento basal do tarso anterior do macho muito dilatado. Tarsos III e IV com duas unhas simples, nao denteadas, com pseudonychio e sem escopula.</p> <p>(1) Em honra do esforcado entomologista, sr. H. Luederwaldt.</p> <p>O genero Luederwaldtia e muito affim a Pucroloides, tendo como este o tarso I de 5 segmentos, os outros de seis, o comoro ocular com 2 espinhos, o femur do palpo com um aculeo apical interno, as areas I, II, IV, V e segmentos dorsaes livres inermes, differindo, porem, em ter na area III dois fortes espinhos ponteagudos em vez de uma apophyse mediana. Especie unica.</p>Published as part of <i>de Mello-Leitao, C., 1923, Arachnideos da Ilha dos Alcatrazes., pp. 3-8 in Revista do Museu Paulista 13</i> on pages 6-
Bambuina undetermined de Mello, Horta & Bolfarini 2013
No full textBambuina de Mello, Horta & Bolfarini, 2013 Species included: B. bambui de Mello, Horta & Bolfarini, 2013 — type species B. zikani Souza-Dias & Borille n. sp.Published as part of Souza-Dias, Pedro G. B., Borille, Maria V. A. & Campos, Lucas Denadai De, 2022, A new species of Bambuina de Mello, Horta & Bolfarini, 2013 (Orthoptera: Grylloidea: Phalangopsidae: Luzarinae) from the Parque Nacional do Itatiaia, Brazil, pp. 130-140 in Zootaxa 5214 (1) on page 132, DOI: 10.11646/zootaxa.5214.1.6, http://zenodo.org/record/738207
Genieridium Vaz-De-Mello 2008, new genus
No full text6. Genieridium new genus Diagnosis: Moderate to large-sized species (only rare specimens of G. cryptops measure less than 3.7 mm), oval-elongate shape (Figs. 21–22); clypeal teeth two (Figs. 55, 60, 62, 64, 70) or none, in the latter case clypeus widely emarginated (Figs. 57, 68). Eyes, in dorsal view, absent or very small, distanced by more than 12 times eye width. Pronotum separated from hypomeron by weak carina (Fig. 59). Elytra convex at least in the anterior half. Length of mesotibiae and metatibiae at least three times apical width. Males with mesal apical protibial teeth; all claws bent (mesoclaws and metaclaws less modified than proclaws); and last tarsomere of prolegs modified to receive claws. Length of last abdominal sternite along midline equal to or less than medial width of metafemur; pygidium, in ventral view, occupying more than two-fifths of abdominal horizontal length. Description: Length 3.5–6.5 mm, body oval elongated, convex (Figs. 21–22), color grey to black, brown in teneral specimens, shiny or opaque, lacking any traces of metallic sheen. Clypeus with two teeth or none, always with central anterior concavity coincident with emargination, which is also present in toothless species (Figs. 57, 68). Clypeus laterally regularly rounded, continuous with genal border. Clypeofrontal and clypeogenal sutures indistinct, head lacking any traces of carinae or tubercles. Eyes, in dorsal view, absent or very small, when present elongated, more than three times their width; interocular width at least 12 times eye width (Figs. 55, 57, 60, 62, 64, 68, 70). Pronotum lacking anterior or posterior beads, simply convex, with lateral callosities distinguished only by lack of punctation; disc covered by simple setose punctures and separated of hypomeron by weak but distinct carina interrupted by regular setose punctures. Hypomeron ventrally with strong lateral longitudinal carina; mesoepimera with transverse anterior carina stronger mesally. Metasternum with simple setose punctures on disc. Elytra with one or two rows of setose punctures, discal interstriae flat all along; striae apically deeper and slightly wider than on disc. Pseudoepipleura gradually narrowed posteriorly, superiorly with complete row of setose punctures. Protibiae with three strong teeth distributed along at least apical three-fifths, basally denticulate, with ventral scale-like setae. Mesotibiae and metatibiae strongly widened apically, apical width more than third of tibial length. Parameres flattened, right-angled in relation to phallobase, shorter than half of phallobase length. Spermatheca simply C-shaped, in one case (G. cryptops) with elongated base and apex. Coxites triangular and symmetrical. Sexual dimorphism: Males have proclaws bent at midlength, and mesoclaws and metaclaws also modified, either bent at midlength or larger than in females and with stronger basal angle; protarsus with last tarsomere modified to receive claws; metasternal disc strongly concave (less concave or flat in females), pygidium narrower than in females, and each tibia with apicomesal tooth, sometimes modified in laminate anteriorly directed apodeme in metatibia. Type species: Pedaridium bidens Balthasar, 1942 (present designation) = Genieridium bidens (Balthasar, 1942), new combination. Etymology: After François Génier, good friend and scarabeidologist, companion in so many works and ideas. Gender neutral. Distribution: Colombia, Venezuela, non-Amazonian Brazil, eastern Bolivia, Paraguay, and northeastern Argentina. The genus shows a disjunct distribution, with one group in the Caribbean subregion (Northwestern South American dominion), occupying the Cauca, Maracaibo, Venezuelan Coast and Venezuelan Llanos provinces, and the other in the Chacoan, Parana and Amazonian subregions, occupying the Pantanal, Caatinga, Cerrado, Chaco, Brazilian Atlantic Forest, Parana Forest, and Araucaria angustifolia Forest provinces (Figs. 104–107). Remarks: The position of Genieridium was not resolved, and it was recovered in a trichotomy with Pedaridium and Nunoidium. The new genus main external synapomorphies are the elongation and inclined orientation of pygidium, and the punctation interrupting the pronotal-hypomeral carina. Apart from characters mentioned as synapomorphies of Genieridium, it can be distinguished from Pedaridium by the much shorter phallobase, differently shaped internal sac sclerites (Pedaridium lacks all but the pseudoflagellum), lack of basal “tooth” in the spermatheca, elytra conjointly convex (Pedaridium has clearly tectiform elytra, separately flattened), lack of longer setae on the anterior part of pronotum and lack of a pronotal lateral expansion. From Nunoidium it is readily distinguished by the lack of a posterior pronotal bead, reduction of lateral bead, reduced eyes, and presence of sexually dimorphic claws. This genus includes two clearly delimited monophyletic, biogeographically-defined groups: species from Venezuela and Colombia are characterized by strong modification of male metalegs (with flattened, blade-like apicomesal tooth) and southern species by the reduction of the seventh elytral stria. Composition: Besides the type species, the genus is presently defined to include G. cryptops (Arrow, 1913), new combination; G. paranense (Arrow, 1932), new combination; G. bordoni (Martínez, 1992), new combination; G. zanunciorum (Vaz-de-Mello & Canhedo, 1998), new combination; G. margareteae (Génier & Vaz-de-Mello, 2002), new combination; and G. medinae (Gill & Vaz-de-Mello, 2003), new combination (all described as Pedaridium). Because no undescribed species of this genus are known to me, I present a small synopsis below.Published as part of Vaz-De-Mello, Fernando Z., 2008, Synopsis of the new subtribe Scatimina (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini), with descriptions of twelve new genera and review of Genieridium, new genus, pp. 1-75 in Zootaxa 1955 on pages 26-2
Bolbapium sampaioorum Carvalho & Vaz-de-Mello 2022
No full textBolbapium sampaioorum Carvalho and Vaz-de-Mello, sp. nov. (Figures 6 (e), 11(g), (h), (i), 15(b)) Diagnosis Frons with tubercle wider than long adjacent to each eye. Pronotum mesoanteriorly with almost rectangular structure in dorsal view (Figure 6 (e)). Etymology. Named after Isadora Sampaio and Henrique Sampaio, beloved sister and brother of the first author. Type locality. Tangará da Serra, Mato Grosso, Brazil. Holotype. ‘ Brasil: Mato Grosso. Tangará / da Serra. Campus UNEMAT. 14°/38 ʹ 58’S, 57° 25 ʹ 24”W, 439 m. / Campo experimental, light/ trap. 14.xi.2017 R.J. Silva. ” ♂ (CEMT 74758). Paratypes. 4 specimens examined. BRAZIL: Acre, Rio Branco, [9°58 ʹ 31”S, 67°49 ʹ 29”W], 1.x.1988, Faria leg. (1 CEMT). Goiás, Niquelândia, Codemin, [14°18 ʹ 21”S, 48°23 ʹ 44”W], 8.xii.1991, leg. (1 CEMT). Mato Grosso, Cuiabá, Flor do Cerrado, 15°29 ʹ 38”S, 56°4 ʹ 36”W, 8–12.x.2016, FIT, A. Frolov leg. (1 CEMT). Rondônia, Vilhena, [12°44 ʹ 29”S, 60°7 ʹ 49”W], 25.iv.2006, light trap, J.A. Rafael & F.F. Xavier leg. (1 CEMT). Description Body size: Length: 4.98–6.71 mm. Width: 3.56–5.45 mm. Head: Clypeal carina with three tubercles, being poorly defined and on an equal level. Frons presents interocular tubercles that are wider than long adjacent to each eye; concave region between the tubercles and with sparse punctuation, with points unevenly distributed. Pronotum: Anterior region of the disc with almost rectangular tubercle, wider than half the interocular space. The entire pronotum surface with sparse points, greater concentration on the sides of the disc and unevenly distributed. Male terminalia: In dorsal view, apparently short and twisted parameres (Figure 11 (g)). In lateral view, parameres not visible and posterior margin beyond the apex of the parameres and rounded (Figure 11 (i)). Sexual dimorphism: This species does not feature sexual dimorphism. Remarks: The primary type is deposited at the CEMT. Differential diagnosis. Bolbapium sampaioorum sp. nov. is morphologically similar to B. borgmeieri, B. boillyi sp. nov., B. caesum, B. howdeni, B. modestum, B. parcepunctatum and B. santanaorum sp. nov. in not presenting the transverse carina forehead interconnecting the interocular tubercles. However, it is easily differentiated by presenting on the pronotum almost rectangular structure occupying more than half of the interocular space. Geographical distribution. Brazil (Acre, Goias, Mato Grosso and Rondonia).Published as part of Carvalho, Edrielly Carolinne & Vaz-de-Mello, Fernando Z., 2022, A taxonomic revision of Bolbapium Boucomont, 1910 (Coleoptera: Scarabaeoidea: Geotrupidae), pp. 769-828 in Journal of Natural History 56 (13 - 16) on pages 815-817, DOI: 10.1080/00222933.2022.2092429, http://zenodo.org/record/701209
Physical and dynamical characterization of (5201) Ferraz-Mello, a possible extinct Jupiter family comet
No full textContext. The subject of asteroids in cometary orbits (ACOs) has been of growing interest lately. These objects have the orbital characteristics typical of comets, but are asteroidal in appearance, i.e., show no signs of a coma at any part of their orbits. At least a fraction of these objects are thought to be comets that have either exhausted all their volatile content or developed a refractory crust that prevents sublimation. In particular, the asteroid ( 5201) Ferraz-Mello has, since its discovery, been suspected to be an extinct Jupiter family comet due to the peculiar nature of its orbit. Aims. The aim of this work is to put constraints on the possible origin of ( 5201) Ferraz-Mello by means of spectroscopic characterization and a study of the dynamics of this asteroid. Methods. We used the SOAR Optical Imager (SOI) to obtain observations of ( 5201) Ferraz-Mello using four SDSS filters. These observations were compared to asteroids listed in the Sloan Moving objects catalog and also to photometry of cometary nuclei, Centaurs, and TNOs. The orbital evolution of ( 5201) Ferraz-Mello and of a sample of asteroids and comets that are close to that object in the a - e plane were simulated using a pure N-body code for 4 000 years forward and 4 000 years backward in time. Results. The reflectance spectrum obtained from its colors in the SDSS system is unusual, with a steep spectral gradient that is comparable to TNOs and Centaurs, but with an increase in the reflectance in the g band that is not common in those populations. A similar behavior is seen in cometary nuclei that were observed in the presence of a faint dust coma. The dynamical results confirm the very chaotic evolution found previously and its dynamical similarity to the chaotic evolution of some comets. The asteroid is situated in the very stochastic layer at the border of the 2/1 resonance, and it has a very short Lyapunov time ( 30 - 40) years. Together, the spectral characteristcs and the dynamical evolution suggest that ( 5201) Ferraz-Mello is a dormant or extinct comet
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