128,029 research outputs found
Diamysis lagunaris Ariani & Wittmann 2000
No full text<i>Diamysis lagunaris</i> Ariani & Wittmann, 2000 <p>Fig. 17 A–J</p> <p> <i>Mysis bahirensis</i> G. O. Sars, 1877 (partim: material from La Spezia): Gourret 1897; Sudry 1910.</p> <p> <i>Diamysis bahirensis</i>: Băcescu 1941; Genovese 1956; Drake <i>et al.</i> 1997; Cunha <i>et al.</i> 2000; San Vicente & Munilla 2000; Goulletquer <i>et al.</i> 2002; Munilla & San Vicente 2005.</p> <p> <i>Diamysis bahirensis</i> ssp.: Ariani 1979 (partim: material from Lake Ganzirri).</p> <p> <i>Diamysis</i> sp. B: Wittmann 1999.</p> <p> <i>Diamysis</i> sp.: Wittmann & Ariani 2000.</p> <p> <i>Diamysis lagunaris</i> Ariani & Wittmann, 2000: 2004, 2005; Ariani 2004; Anderson 2008; Petrescu & Wittmann 2009; Petryashov 2009; Wittmann & Ariani 2009, 2010, 2012a; San Vicente 2010; ITIS 2014; Mees 2014; Wittmann <i>et al.</i> 2014.</p> <p> <b>Material examined.</b> Two samples from marine waters of the eastern Mediterranean, 32 samples from brackish and marine waters of the western Mediterranean, plus 3 from the E-Atlantic (Portugal): see Ariani & Wittmann (2000), Wittmann & Ariani (2012a). Among these 37 positive samples only one from the oligohaline reach (<i>S</i> = 3.4): 1 M subad. 4.7 mm from the Mediterranean coast of France, Canal d'Arles à Fos, 43.4663N 004.8338E; previously unpublished sample: 2 M ad. 5.4–5.6 mm, 1 F ad. 6.7 mm, among ~30,000 <i>Mesopodopsis slabberi</i> and 2 <i>Limnomysis benedeni</i>, Mediterranean coast of France, estuary of the Petit Rhône at Tiki, same sample as indicated above for <i>M. slabberi</i>, NHMW reg. no. 25707.</p> <p> <b>Diagnosis</b> (sensu lato: covering the known population range). Eyes normal, eyestalks dorsally with welldeveloped fenestra paracornealis (Fig. 17 B), although not well visible in poorly pigmented eyestalks. Rostrum forms a wide convex angle with broadly rounded tip (Fig. 17 A, B). Carapace without fringes in both sexes (Fig. 17 A). Palpus of maxilla with distal segment subcircular, armed with 5–25 distinct denticles. Pereiopods of moderate length, eighth endopod extending to the maxillae or at most up to mandibles. All pereiopods with normal carpopropodus and slender, styliform claw (Fig. 17 D). Basal segment of thoracic exopods with outer corner spiniform (Fig. 17 C) or occasionally rounded in some of the posterior exopods, most often rounded in last exopod. Pereiopods poorly to markedly slender, with R6 = 4.8–8.1 (Fig. 17 D). Carpopropodus of thoracic endopods 3–8 with 3–2 (4), 2–3, 2, 2, 2, and 2–3 segments, respectively; tarsus slender, with slender, in part feebly serrated claw; carpopropodus 3 longer than 5 times its maximum width (Fig. 17 D). Exopod of fourth male pleopod 2-segmented with a large modified seta and often an additional minute seta at tip; basal segment with smooth seta and one (0–2) additional, small, barbed seta; endopod with distinct subbasal articulation (Fig. 17 E). Scutellum paracaudale terminally well rounded or biconvex with rounded (rarely acute) apex (Fig. 17 F–H), its lower margin occasionally almost straight. Endopod of uropod with one strong spine below statocyst, statolith composed of vaterite. Telson (Fig. 17 J) subquadrangular to subtriangular, length 1.1–1.5 its maximum width or 0.7–1.0 times length of last abdominal somite; maximum width near basis 2.1–2.7 times that at apex; each lateral margin armed with 6–16 spines. Apical cleft 11–19% telson length, cleft lined by 9–23 laminae, its margins straight to convex.</p> <p> <i>Body length.</i> Adult females 4.1–8.1 mm, males 3.6–6.6 mm.</p> <p> <b>Distribution</b> (Fig. 6). Mainly in the western Mediterranean: along the coasts of the Tyrrhenian, Sardinian and Ligurian Seas, Golfe du Lion, Strait of Messina; rare in the eastern Mediterranean: Island of Crete in the Aegean Sea. The populations at the Atlantic coasts of southern Spain and Portugal may have originated from Mediterranean lagoons by transfer in ballast water (Cunha <i>et al.</i> 2000: as <i>D. bahirensis</i>), although an indigenous status of the Atlantic populations is not excluded (Wittmann & Ariani 2012a). Type locality is the mixoeuhaline to weakly metahaline lagoon Lago di Caprolace at the Lazio coast, Tyrrhenian Sea. The species is mostly found in mixoeuhaline to metahaline lagoons, also in marine coastal habitats as well as mesohaline to mixoeuhaline reaches of estuaries. Normal salinity range 14–49; so far only two positive samples from the oligohaline reach (<i>S</i> = 2–3), taken at different stations in the Rhône Delta on the Mediterranean coast of France.</p>Published as part of <i>Wittmann, Karl J., Ariani, Antonio P. & Daneliya, Mikhail, 2016, The Mysidae (Crustacea: Peracarida: Mysida) in fresh and oligohaline waters of the Mediterranean. Taxonomy, biogeography, and bioinvasion, pp. 1-70 in Zootaxa 4142 (1)</i> on pages 36-38, DOI: 10.11646/zootaxa.4142.1.1, <a href="http://zenodo.org/record/261102">http://zenodo.org/record/261102</a>
Diamysis mesohalobia Ariani & Wittmann 2000
No full textDiamysis mesohalobia Ariani & Wittmann, 2000 Figs 14, 15 Diagnosis (sensu lato: covering the three currently known subspecies). Appendix masculina 80–120% the length of terminal segment of antennular peduncle (Fig. 14 B). Eyes normal; eyestalks with fenestra paracornealis weakly developed (Fig. 15 K) or absent (Fig. 15 A), in any case mostly not or poorly visible. Distal segment of maxillary palpus with 4–27 distinct denticles. Presence of fringes on male carapace varies between subspecies; no such fringes in females. Basal segment of thoracic exopods with outer corner spiniform or less frequently ending in an acute edge, occasionally rounded in the first and/or in some of the median and/or posterior exopods. All pereiopods with normal carpopropodus and slender, styliform claw (Figs 14 E, 15B, M). Carpopropodus of thoracic endopods 3–8 with 3 (2; 4), 3–2 (4), 3–2, 2–3, 2–3 and 3–2 segments, respectively. Carpopropodus of endopod 3, if 3- segmented, with basal segment not longer than remaining segments combined (Fig. 15 M). Thoracic endopod 3 and often also endopod 8 with at least one among the four paradactylar setae distally pectinate in (most) females, smooth or pectinate in males. Male pleopod 4 biramous with 2-segmented sympod and with small, 2-segmented endopod (Figs 14 H, 15N); its exopod 2–(3)-segmented, with large modified seta at tip. This exopod with basal segment bearing a smaller smooth seta (Figs 14 H, 15D), in certain populations occasionally with an additional barbed seta (Fig. 15 N). Endopod of uropod with one strong spine below statocyst, statolith composed of vaterite. Telson subquadrangular (Fig. 15 S) to subtriangular (Fig. 15 J); maximum width is 1.4–3.0 times that at apex; its apical cleft with 8–39 laminae; cleft is 5–26% telson length. Taxonomy. Interbreeding experiments by Ariani & Wittmann (2000) indicated mutual crossability between morphologically different Mediterranean populations of D. mesohalobia. The three main morphotypes distinguished were, therefore, described at subspecific level as D. mesohalobia mesohalobia Ariani & Wittmann, 2000, D. mesohalobia gracilipes Ariani & Wittmann, 2000, and D. mesohalobia heterandra Ariani & Wittmann, 2000; each of these subspecies are treated in separate subchapters below. Occurrence (Fig. 16). Marine, brackish and fresh (near)-coastal waters of the E-Mediterranean and Marmora Seas.Published as part of Wittmann, Karl J., Ariani, Antonio P. & Daneliya, Mikhail, 2016, The Mysidae (Crustacea: Peracarida: Mysida) in fresh and oligohaline waters of the Mediterranean. Taxonomy, biogeography, and bioinvasion, pp. 1-70 in Zootaxa 4142 (1) on page 29, DOI: 10.11646/zootaxa.4142.1.1, http://zenodo.org/record/26110
A ferrovia no Vale do Itajaí
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Urbanismo, História e Arquitetura da CidadeO tema desta dissertação é uma análise dos fatos históricos relacionados ao processo de implantação e à posterior desativação da EFSC no Vale do Itajaí, destacando os principais agentes do processo e a conseqüência de suas ações no domínio geográfico e social. Esta pesquisa tem sua relevância social e acadêmica como instrumento de pesquisa e de memória baseado na organização dos fatos históricos desencadeados em torno dos transportes no Vale do Itajaí, com foco para o transporte ferroviário, uma vez que há pouca publicação e pesquisa sobre a EFSC. O trabalho foi referenciado pela análise das relações sociais sob os conceitos de Santos (1991), de fatos históricos registrados em periódicos, documentos escritos, fotográficos e cartográficos, entrevistas e, quando necessário, pela busca da contextualização dentro dos acontecimentos nacionais e internacionais, para melhor esclarecimento dos fatos em escala local e regional. Além disso, esta pesquisa usou como referência a análise e os conceitos de Mumford, em sua obra A Cidade na História, abordando o processo de transformações urbanas decorrente do desenvolvimento das cidades e seus principais agentes. Conceitos de outros autores, como Villaça, Lefebvre e Halbwachs são igualmente suportes teóricos deste trabalho. A ferrovia fez parte dos planos das lideranças locais, desde as primeiras décadas de história da fundação dos núcleos urbanos na região da bacia do Itajaí, como questão básica para o desenvolvimento econômico da região. The theme of this thesis is an analysis of historical facts related to the process of implantation and further disabling of EFSC (Estrada de Ferro Santa Catarina) in the region of Vale do Itajaí, State of Santa Catarina, highlighting the main agents of the case and the consequences of their actions both on geographical and social domain. This research has a social and academic relevance as a tool for further search and memory since it presents the organization of historical facts regarding transport in the region of Vale do Itajaí, with a focus on railway transportation, especially EFSC, from which little research sources and publications can be found. The work is referenced by an analysis of social relations according to the concepts of Santos (1991); historical facts recorded in journals, written, photographic, cartographic documents; and interviews. It includes, also, some search on the context of national and international events in order to offer a better understanding of the facts in a local and regional scale. Additionally, this research used as a reference to the concepts shown an analysis registered by Mumford in his book "A Cidade na História", around the process of urban transformations resulting from the development of cities and their key players. Concepts of other authors, as Villaça, Lefebvre and Halbwachs are also devices of this theoretical work. The railway took part of the local leaders' plans since the first decades of the history of the foundation of urban areas located at the basin of the Itajaí River. It was, at that time, a basic need for the economic development of the region
Diamysis mesohalobia subsp. heterandra Ariani & Wittmann 2000
No full textDiamysis mesohalobia heterandra Ariani & Wittmann, 2000 Fig. 15 K–S Mysis oculata var. relicta: Zimmer 1927 (partim: Lake Deran). Diamysis bahirensis: Holmquist 1955; Avĉin et al. 1973 (partim); Matjašič & Štirn 1975 (partim); Ariani et al. 1983, 1993 (partim). Diamysis bahirensis ssp.: Ariani 1981b (partim). Diamysis sp.: Wittmann & Stagl 1996 (partim). Diamysis mesohalobia heterandra Ariani & Wittmann, 2000: 2004, 2005; Anderson 2008; San Vicente 2010; Wittmann & Ariani 2010, 2012a, 2012b; Mees 2014. Material examined. 42 samples from oligohaline to metahaline lagoons and karstic springs in diverse parts of the eastern Mediterranean plus 13 samples from freshwater tributaries of the Adriatic Sea, see Ariani & Wittmann (2000) and Wittmann & Ariani (2012b); material studied by Holmquist (1955), previously unpublished reexamination: dissected parts of 1 M ad. 8 mm, 2 egged F ad. with body length 7 or 9 mm, respectively, on a total of 3 slides labelled " Diamysis biharensis. Herzegovina & Timavo, det. Ch. Holmquist, prep. 57–59", SMNH reg. nos. 140108 – 140110. According to Holmquist (1955) this material was collected by Janez Hoenigman in Lake Deran, 2–5 m depth, 27 Apr. 1954, 43.04N 017.75E, Herzegovina, altitude 0 m, sea distance 31 km as calculated along the small effluent and following this along the Neretva River to the east coast of the Adriatic Sea. Short updated description. The following data covers primarily the type population in an oligo- to mixoeuhaline lagoon with brackish spring, Limni Antinioti (Island of Corfu, Ionian Sea). Data from remaining populations, as far as different, are given in square brackets. Diamysis mesohalobia with short rostrum mostly forming a wide convex angle with broadly rounded tip (Fig. 15 K, L). Fenestra paracornealis weakly developed, mostly visible (Fig. 15 K) in well preserved material [mostly visible in well preserved material from Lake Deran (near E-Adriatic coast) or rarely from Schiavetti Springs (Gulf of Trieste, N-Adriatic)]. Carapace of adult males with fringes arranged in two submedian stripes plus one subterminal stripe (Fig. 15 K, L). The submedian stripes may be differentiated as two separate stripes each (Fig. 15 K). Palpus of maxilla with subcircular terminal segment, armed with 8–27 denticles along distal margin. Basal segment of all thoracic exopods normally with spiniform outer corner, rounded only in some of the posterior exopods of small individuals ( 6 mm) often with a minute additional seta; basal segment subterminally with a smooth seta (Fig. 15 N–P). Large males (> 7 mm) with 0–1 [0–4] additional small barbed [and/or smooth] seta (Fig. 15 N, P) on terminal margin of basal segment of exopod. Scutellum paracaudale subtriangular, mostly biconvex [or with upper margin convex and lower margin concave]; tip pointed (Fig. 15 Q, R) or less frequently rounded, rarely bifid. These margins mainly smooth in small specimens [or undulate in large ones (> 8 mm; Fig. 15 Q)]. Telson mostly subquadrangular (Fig. 15 S), but subtriangular in small specimens (<6 mm), 0.7–0.9 [0.7–1.0] times length of last abdominal somite; lateral margins concave [to straight], armed with 8–13 [6–11] spines; maximum width of telson is 1.8–2.4 [1.4–2.4] times that at apex; its apical cleft with straight to strongly convex margins. Bottom of cleft angular to rounded. Cleft is 10–19% [10–26%] telson length, cleft lined by 12–31 [9–38] laminae (Fig. 15 S). Body length. Adult females 3.7–9.7 mm, males 3.0– 8.7 mm. Distribution (Figs 12, 16). In fresh and brackish waters of springs, estuaries, lagoons, and lakes all around the Adriatic Sea (Fig. 12), salinity range S = 0–42. Outside the Adriatic (Fig. 16) known only from oligo- to polyhaline waters on the coasts of the Ionian and Marmora Seas, so far not from fresh-water (Ariani & Wittmann 2000, Wittmann & Ariani 2012a, b).Published as part of Wittmann, Karl J., Ariani, Antonio P. & Daneliya, Mikhail, 2016, The Mysidae (Crustacea: Peracarida: Mysida) in fresh and oligohaline waters of the Mediterranean. Taxonomy, biogeography, and bioinvasion, pp. 1-70 in Zootaxa 4142 (1) on pages 33-36, DOI: 10.11646/zootaxa.4142.1.1, http://zenodo.org/record/26110
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Anticipation of novelty recruits reward system and hippocampus while promoting recollection
No full textThe dopaminergic midbrain, which comprises the substantia nigra and ventral tegmental area (SN/VTA), plays a central role in reward processing. This region is also activated by novel stimuli, raising the possibility that novelty and reward have shared functional properties. It is currently unclear whether functional aspects of reward processing in the SN/VTA, namely, activation by unexpected rewards and cues that predict reward, also characterise novelty processing. To address this question, we conducted an fMRI experiment during which subjects viewed symbolic cues that predicted either novel or familiar images of scenes with 75% validity. We show that SN/VTA was activated by cues predicting novel images as well as by unexpected novel images that followed familiarity-predictive cues, an 'unexpected novelty' response. The hippocampus, a region implicated in detecting and encoding novel stimuli, showed an anticipatory novelty response but differed from the response profile of SN/VTA in responding at outcome to expected and 'unexpected' novelty. In a behavioural extension of the experiment, recollection increased relative to familiarity when comparing delayed recognition memory for anticipated novel stimuli with unexpected novel stimuli. These data reveal commonalities in SN/VTA responses to anticipating reward and anticipating novel stimuli. We suggest that this anticipatory response codes a motivational exploratory novelty signal that, together with anticipatory activation of the hippocampus, leads to enhanced encoding of novel events. In more general terms, the data suggest that dopaminergic processing of novelty might be important in driving exploration of new environments
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Mysidium (Occimysidium) Wittmann & Wirtz, 2019, subgen. nov.
No full textOccimysidium Wittmann subgen. nov. urn:lsid:zoobank.org:act: EE9F05D3-29B5-4B95-BC0D-2A6756AAECE5 Type species Mysidium pumae Ortiz, Hendrickx & Winfield, 2017, by monotypy. Etymology Noun in nominative singular with neutral ending, formed by amalgamation of the Latin noun ‘ occidens ’ with the generic name Mysidium, referring to the occurrence on the west coast of America. Diagnosis Subdivision of the genus Mysidium Dana, 1852, characterized by two-segmented carpopropodus of third thoracic endopod; merus of this endopod without serrated setae. Third male pleopod with distinct endite at about ¾ distance from basis of medial margin. Sympod of fourth male pleopod without setae on rostral face. Its exopod four-segmented; basal segment with 0–1 seta, second segment without seta, subterminal segment with bifid modified seta, terminal segment with undivided modified seta. Telson entire (not incised). Distribution As for type species. Mysidium (Occimysidium) pumae Ortiz, Hendrickx & Winfield, 2017 comb. nov. Mysidium pumae Ortiz et al., 2017a: 114 –117, table 1, figs 1–4. Mysidium pumae – Ortiz et al. 2017b: 77. — Ortiz & Lalana 2018: 80. Material examined None. Type locality Pacific coast of Mexico, Mazatlán Harbor, 23.1814° N, 106.4242° W (Ortiz et al. 2017a). Revised definition Adapted to the scheme in Table 2 by using published data (Ortiz et al. 2017a, 2017 b) on adults of both sexes: all features diagnosed above for the genus Mysidium Dana, 1852, and its new subgenus Occimysidium. Cornea crescent-like in dorsal view, with ‘diameter’ 1.5 times as long as terminal segment of antennular trunk. Eyestalks smooth. Rostrum triangular, apically bluntly pointed, not extending beyond eyestalks. Appendix masculina with separate inner and distal tufts of setae; its length 2.0–2.2 times terminal segment of antennular trunk. Length of antennal scale six times maximum width; scale reaching well beyond antennular trunk. Median segment of mandibular palp with setae on both margins. Carpopropodus of first to eighth thoracic endopods 2, 2, 2, 3, 3, 3, 2, and two-segmented, respectively. Basal segment occupies 0.8 times total length of carpopropodus of endopod 3. Pleopods 1–2, 5 rodlike, not considering the reduced endopodal portion (pseudobranchial lobe); male pleopod 3 with an additional, small endite. Length of male pleopods increases in order of pleopods 1, (subequal 2, 3, 5), 4. Sympod of male pleopod 4 without endite. Exopod with basal segment occupying 54% total length. Endopod reduced to lobe with = 22% sympod length; apically with one long seta and more proximally four additional shorter setae. Uropodal endopod 0.7 times as long as exopod. Telson spatulate, caudally gradually narrowing; length 2.3 times maximum width near basis; terminal margin convex, evenly rounded. Proximal 51–52% of lateral margins smooth, distal portion of each margin with continuous series of 20–22 acute laminae. Terminal margin lined by 23–25 more densely set, acute laminae. These latter laminae more slender than the neighboring latero-terminal laminae. Distribution So far known only from type locality.Published as part of Wittmann, Karl J. & Wirtz, Peter, 2019, Revision of the amphiamerican genus Mysidium Dana, 1852 (Crustacea: Mysida: Mysidae), with descriptions of two new species and the establishment of two new subgenera, pp. 1-48 in European Journal of Taxonomy 495 on pages 25-26, DOI: 10.5852/ejt.2019.495, http://zenodo.org/record/258486
Walter I. Wittmann (1918-1992)
No full textWalter I. Wittmann, an arctic oceanographer and expert on sea ice, died at age 73 on 19 March 1992 .... During a career that spanned nearly five decades, he was a prominent figure in many of the early efforts to describe, understand, and predict the behavior of arctic sea ice and icebergs. He resided in the Washington, D.C., area, where he had been the director of the Polar Oceanography Division at the Naval Oceanographic Office (NAVOCEANO) prior to his retirement from the federal government in 1974. ... He established the first methodologies used in the United States for the observation and prediction of icebergs and sea ice. He spent time in Halifax, Nova Scotia, assisting the Canadians in organizing their own ice observing and forecasting capability, which evolved into the Canadian Ice Centre now located in Ottawa. Walter Wittmann served as head of U.S. Naval Oceanographic Office\u27s Sea Ice Branch and later as the initial director of the Polar Oceanography Division from 1962 through 1974. ... During the period 1974-78, Mr. Wittmann was affiliated with the Arctic Institute of North America. He formulated methodologies for sea ice prediction and outlined and implemented feasibility studies concerning the effects of ice and environment on the conduct of various types of oil and gas exploration and activity in ice-covered environments. He also served for a number of years as a staff scientist with the U.S. Navy\u27s Arctic Submarine Laboratory. During the 1980s, he worked for Sea Ice Consultants, Inc., and Integrated Systems Analysts as a sea ice consultant. The list of Mr. Wittmann\u27s scientific writings and other professional contributions is a long one, but he leaves a legacy that is much broader than his own record indicates. While at NAVOCEANO he trained many of the current generation of arctic scientists in the study of a region that most never suspected would become their career focus. ... He managed to combine personal concern with technical understanding in a way that made lasting impressions on those who worked under him and with him. ..
Callonychium (Callonychium) petuniae Cure & Wittmann 1990
No full text<i>Callonychium (Callonychium) petuniae</i> Cure & Wittmann, 1990 <p> <b>(Figs. 1 A-C and 5)</b></p> <p> <b>Material examined</b> (3♀♀, 4♂♂): 2♀♀, 1♂, Argentina, Misiones, Rta. 94 (<i>ca.</i> Azara), 28°04′25.1″S, 55°41′19.9″O, 05/XII/2017, S/ <i>Calibrachoa</i> sp., Col. Alvarez & Ramello. 1♂, Argentina, Entre Ríos, Concordia, 11-III-2020, Col. P. Cavigliasso. 1♀, Argentina, Entre Ríos, Concordia, 18-II-2020, Col. P. Cavigliasso. 2♀♀, Argentina, Entre Ríos, Pueblo Liebig, 14-II-1997, 07-III-1997, Col. L. Caire.</p> <p> <b>Distribution:</b> Brazil: Paraná, Rio Grande do Sul, Santa Catarina (Moure, 2007). Argentina: Entre Ríos and Misiones. <b>New records.</b></p> <p> <b>Remarks:</b> Males of this species can be easily distinguished from the other species of the genus by the S3 somewhat excavated and with a medial subterminal carina (Fig. 1B) and T7 with two ventral projections (Fig. 1C) (Cure & Wittmann, 1990). <i>Callonychium petuniae</i> was reported as an oligolectic bee species on three species of the solanaceous genus <i>Petunia</i> s.l. (<i>Calibrachoa ovalifolia</i> (Miers) Stehmann & Semir, <i>Calibrachoa excellens</i> (R.E. Fr.) Wijsman, and <i>Petunia integrifolia</i> (Hook.) Schinz & Thell.) (Cure & Wittmann, 1990) and reproductive strategies were reported by Wittmann <i>et al.</i> (1990). This is the sixth species of the genus reported in Argentina (Gonzalez & Engel, 2016).</p>Published as part of <i>Alvarez, Leopoldo Jesús, Ramello, Pablo José, Avalos, Adan Alberto, Almada, Valentín, Aguirre, Marina Soledad, Torretta, Juan Pablo & Lucia, Mariano, 2024, Contributions to the wild bee fauna in Argentina (Hymenoptera: Anthophila), pp. 1-13 in Papéis Avulsos de Zoologia 64</i> on page 2, DOI: 10.11606/1807-0205/2024.64.006, <a href="http://zenodo.org/record/10943066">http://zenodo.org/record/10943066</a>
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