Riviste Online SApienza - R.O.SA - 2 (Sapienza University of Rome)
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A new species of Leucocelis (Amauroleucocelis) Bourgoin, 1913 from Burundi (Coleoptera: Scarabaeidae, Cetoniinae, Leucocelina)
Full text linkLeucocelis (Amauroleucocelis) vingerhoedti sp. nov. is hereby described from specimens collected recently in Burundi. The species is most closely related to the high-altitude L. (A.) jeanneli (Bourgoin, 1913), currently known from Kenya, Tanzania and Cameroon. L. (A.) vingerhoedti differs from the latter species mainly in its dorsal ornamentation, which lacks the yellowish oblique band across the elytral disc and the midline band on pronotum and scutellum that, on the other hand, are typically found in L. (A.) jeanneli. The elytral costae of the new species are also more prominent and elevated than in L. (A.) jeanneli, and finally their aedeagal parameres differ by virtue of both apical and basal extensions being longer but narrower in L. (A.) vingerhoedti by comparison of those of L. (A.) jeanneli. Also, the internal lobes are substantially wider in L. (A.) jeanneli than in L. (A.) vingerhoedti, while the external ones are protruding further forward in the latter species. L. (A.) vingerhoedti occurs in forest habitat and like most other species of the genus is presumably floricolous
The EU conservation priority dragonfly Oxygastra curtisii in the Italian Lake District: a review and new data (Insecta: Odonata)
Full text linkOxygastra curtisii (Dale, 1834) is an Odonate species of EU conservation priority (‘Habitat’ directive Annex II and IV). In Italy, knowledge about its distribution is fragmentary. We updated and reviewed data on its distribution (geographic and altitudinal) and ecology (habitat preferences and phenology) in the Italian Lake District (an area of >5000 km2 in NW Italy) and evaluated the adequacy of the Natura 2000 Network in protecting the species. We found the species to be present and rather widespread at the main pre-Alpine lakes (Lakes Maggiore, Lugano, Orta, Como, and Iseo, with the exclusion of Lake Garda), and several other smaller lakes. Based on current knowledge, a line running roughly north to south from Lake Moro to Lake Iseo is the easternmost limit of the species’ range in northern Italy. While the flight period runs from the last decade of May to the second decade of August, it peaks between the second decade of June and the second decade of July. Our study showed the importance of two habitats whose significance for O. curtisii had been previously overlooked: lakes, which are an important habitat for reproduction, and grassland on the mountain slopes surrounding the lakes, which serve as an important pre-breeding and foraging habitat for immatures. Only 40% of known breeding localities are included in the Natura 2000 network, highlighting the potential vulnerability of this localized species in the area. In light of this, we believe it is essential to expand the Natura 2000 network to include more sites where this species is present, including foraging and pre-breeding areas, and to begin as soon as possible monitoring efforts to better assess the size of the O. curtisii population in the Italian Lake District
First record of Barynotus makolskii Smreczyński, 1955 and Coelositona cambricus (Stephens, 1831) in Ukraine, with faunistic and nomenclature notes on other weevils (Coleoptera: Curculionidae)
Full text linkBarynotus makolskii Smreczyński, 1955 and Coelositona cambricus (Stephens, 1831) are newly recorded species for Ukraine. Specimens, including male and female genitalia of Barynotus makolskii have been photographed. The key to Barynotus species of Ukraine is provided. Primula elatior (L.) Hill is identified as a host plant of Barynotus makolskii. The distribution data for eight poorly-known weevil species in Lviv, Ivano-Frankivsk, Khmelnytskyi, Ternopil and Zakarpatska Provinces of Ukraine are given: Barynotus makolskii Smreczyński, 1955, B. moerens (Fabricius, 1792), B. obscurus (Fabricius, 1775), Otiorhynchus (Magnanotius) norici Alonso-Zarazaga, 2013, Argoptochus quadrisignatus (Bach, 1856), Coelositona cambricus (Stephens, 1831), Phloeophagus thomsoni (Grill, 1898), and Rhabdorrhynchus echii (Brahm, 1790). Nomenclature issues in Otiorhynchus norici are also discussed
Big-headed Lagoon Fly, Eristalinus megacephalus, found for the second time in Serbia, and new records of some rare Eristalini (Diptera: Syrphidae)
Full text linkThe second record of Eristalinus megacephalus (Rossi, 1794) in Serbia is presented. One female specimen was found on 28 Aug 2024, near the village of Kovilj, located in Autonomous Province of Vojvodina, in northern part of the country. The habitat where the species was recorded is shortly described, and the presence of this rare and unusual member of Serbian fauna is discussed. Additionally, data for seven rare species of the tribe Eristalini from Serbia are also presented
Il patriziato veneziano tra eredità repubblicana e modelli monarchici
Full text linkThis essay aims to investigate whether in Venice there ever truly existed a prince comparable to other royal sovereigns, or whether we should speak of a republican “prince” proper, namely a representative figure devoid of actual power or authority. As early as the fifteenth century, the Venetian patriciate began to diminish the power of the Venetian dux (which had replaced the Byzantine Empire’s magister militum), in order to underscore the sovereignty of the Grand Council, in which all male patricians took part. This progressive limitation of his powers led to considering the doge as primus inter pares for internal interests of the ruling class, but failed to take into account that such a process would weaken the regality of the doge in the face of sovereigns from emerging states in Europe.The downgrading of the Venetian doge’s precedence in European courts became emblematic of the diminishing political centrality of the Most Serene Republic in comparison to absolute states
Europa, Stato sociale e rinnovamento del paradigma riformatore: la tormentata ricerca del PCI degli anni Ottanta
Full text linkthe relationship between the goal of reforming the welfare state (and the socialcompromise underlying it) in the elaboration of the PCI, as well as the objectiveof rebooting the process of integration between the countries of the Old Continent,capable of leading to a more solid “political Europe”. Far from being twodistinct and separate elements (perhaps true during previous historical eras, thoughnever clearly), in the 1980s these two issues became increasingly intertwined,as public opinion and political debate identified in the European dimension theplace and space within which redefine the main features of the social model andrethink a different and more dynamic balance between state, market and organisedsocial subjects.Favouring the analysis of the party’s political culture, the article attempts to conductthis reconstruction by carrying out a periodization in order to distinguishthree different phases of this relationship, within which the relations and the typeof intertwining between the two elements are defined, as part of the more generalstrategic perspective and overall identity and political project of the party
Terzaghi’s effective stress principle and hydrological deformation of karst massifs detected by GNSS and InSAR
No full textPrevious studies have shown that carbonate massifs of the Apennine chain (Italy) undergo deformation in response to groundwater level variations occurring in the saturated zone of karst aquifers. This study focuses on the Matese massif, hosting one of the main karst aquifers of the central-southern Apennine. Our analyses revealed a hydrological component in the time series of the horizontal and vertical ground displacements measured by GNSS (Global Navigation Satellite Systems) and InSAR (Interferometric Synthetic Aperture Radar). In particular, contraction and dilatation phases of the karst massif appear associated with the lowering and rising of the groundwater levels, respectively. Various authors have explained this phenomenon by the widening and closing of sub-vertical waterfilled fractures dissecting the rock mass due to varying hydraulic heads, neglecting the role of the effective stress state acting in the aquifer saturated zone. We present new equations explaining the observed deformational phenomenon in its generality, which are based on Terzaghi’s effective stress principle (Skempton’s generalization) and linear elasticity. The study shows that hydrological deformation of karst massifs is similar to the thermal expansion of solids. In the first case, the deformation is primarily due to pore water pressure variations occurring in the aquifer saturated zone, which are associated with water table oscillations, and is controlled by the elastic properties of the rock mass and the coefficient of earth pressure at rest, K0
Definition of runoff thresholds integrating satellite data and in-situ measurements: results from Voineşti Experimental Basin (Romania)
No full textUnderstanding runoff-controlling mechanisms requires hydro-meteorological data derived from experimental plots or catchments. The present study focuses on the Voineşti Experimental Basin (VEB - Romania), which is in the Curvature Subcarpathia and is characterised by outcropping continental fluvial deposits. VEB has different experimental plots built to understand the relations between runoff and its genetic and predisposing factors. The study analysed the monitoring data in a plot of 600 m2 covered by grassland. An empirical model defined the runoff threshold by integrating ground data and satellite estimations. By identifying 45 runoff events in the 2016-2018 period, it was possible to define a runoff threshold considering the rainfall depth and the antecedent soil hydraulic conditions. Two indices were used based on the previous volumetric water content and the antecedent degree of saturation retrieved by the Copernicus Sentinel-1 mission. By adding the rainfall depth to the soil antecedent hydraulic conditions, a runoff threshold of about 65-67 mm was identified. These findings encourage using satellite moisture products to describe hydrogeological processes in scarcely instrumented areas
Pantala flavescens successfully breeding for the second time in Malta (Maltese Archipelago) (Odonata: LIbellulidae)
Full text linkAfter being first recorded in the Maltese Islands in 2013 and successfully breeding on the archipelago’s largest island of Malta in 2020 following an unprecedented influx, Pantala flavescens (Fabricius, 1798) has again bred successfully on the same island in 2023. 259 exuviae were found at four small reservoirs in the same valley system of Burmarrad, on the island of Malta