Validation of the faunistic data on the genus Alebra Fieber, 1872 (Hemiptera, Cicadellidae) in the Iberian Peninsula and Madeira

Identification of Alebra leafhoppers is difficult because most species do not show specific differences in male genital structures. Colour pattern and host plant associations, the characters traditionally used in the recognition of these species, show considerable intraspecific variation. In the last decade, it was proved that the shape of male abdominal apodemes is the most reliable morphological character to separate species of this genus, and since then, some species have been splitted in two. To untangling the systematics of the European species it urges to revise data on host plants and distribution. For the Iberian Peninsula the actual species number was still uncertain because the taxonomic value of apodemes in Alebra was unknown when the faunistic records on this region were published. In this work it was analysed material from Spain, Portugal and the island of Madeira and three species were identified: A. albostriella (Fallén, 1826), A. coryli Le Quesne, 1976, new to the Iberian peninsula, and A. viridis Rey, 1894 sensu Gillham 1991, recorded for the first time to the fauna of Madeira and Spain.La identificación de cigarrillas del género Alebra es difícil porque la mayoría de las especies no presentan diferencias específicas en las estructuras genitales de los machos. Los patrones de color y la asociación a sus plantas huéspedes, caracteres tradicionalmente utilizados en la separación de estas especies, muestran una considerable variación intraespecífica. En la última década, se ha probado que la forma de los apodemas abdominales de los machos es el carácter morfológico más fiable para separar las especies de este género, y desde entonces, algunas especies han sido separadas en dos. Para esclarecer la sistemática de las especies europeas de este género, es necesario hacer una revisión urgente de los datos existentes sobre sus plantas huéspedes y distribución. En la Península Ibérica el número real de especies conocidas todavía era incierto porque el valor taxonómico de los apodemas en Alebra era desconocido cuando fueron publicados los datos faunísticos sobre esta región. En este trabajo se ha estudiado material de España, Portugal y la isla de Madeira y han sido identificadas tres especies: A. albostriella (Fallén, 1826), A. coryli Le Quesne, 1976, nueva cita para la Península Ibérica, y A. viridis Rey, 1897 sensu Gillham 1991, referida por primera vez para la fauna de Madeira y España.info:eu-repo/semantics/publishedVersio

On the presence of some species of the genus Wagneriala Anufriev, 1970 (Hemiptera, Cicadellidae) in Spain and Greece

The genus Wagneriala includes small leafhoppers associated mainly to grasses. Four species are currently known ¡n Europe but only one of these, W. sinuata, is known from Spain and Greece. This work reports for the fírst time the presence of W. incisa and W. pahtstris in the Iberian Península and W. incisa in Greece. For these little known species it has been compilad information 011 food plant associations and distribution.El género Wagneriala incluye pequeñas cigarrillas associadas principalmente a gra míneas. Se conocen actualmente cuatro especies de este género en Europa pero sólo una de éstas, W. sinuata, es conocida en España y Grecia. Este trabajo cita por vez primera la presencia de W. incisa y W. pahtstris en la Península Ibérica y de W. incisa en Grecia. Para estas dos especies poco conocidas ha sido recopilada información sobre sus plantas nutricias y distribución.info:eu-repo/semantics/publishedVersio

Hauptidia lapidicola (Vidano 1964), first record for Spain and data on the Iberian distribution of Hauptidia maroccana (Melichar 1907)(Hemiptera: Cicadellidae)

Species of the genus Hauptidia are associated to herbaceous plants. In Spain only two species of this genus are known: H. distinguenda (Kirschbaum, 1868) and H. maroccana (Melichar, 1907). In the study of material from northern and southern Spain, a little known species was found: H. lapidicola (Vidano, 1964). This leafhopper, found so far only in Portugal and Italy, is a new record for the Spanish fauna. Data on distribution, ecology and host plants for this species and Hauptidia maroccana are given in this work.: Las especies del género Hauptidia se encuentran asociadas a plantas herbáceas. En España se conocen dos especies: H. distinguenda (Kirschbaum, 1868) y H. maroccana (Melichar, 1907). Estudiando material procedente del norte y sur de España se encontró una especie poco conocida, H. lapidicola (Vidano, 1964). Esta cigarrilla sólo se conocía de Portugal e Italia y se cita por primera vez para la fauna española. En este trabajo se aportan datos sobre la distribución, ecología y plantas huéspedes de Hauptida maroccana y H. lapidicola.info:eu-repo/semantics/publishedVersio

A Sun-like star orbiting a boson star

The high-precision astrometric mission GAIA recently reported the remarkable discovery of a Sun-like star closely orbiting a dark object, with a semi-major axis and period of $1.4\, \rm{AU}$ and $187.8$ days respectively. While the plausible expectation for the central dark object is a black hole, the evolutionary mechanism leading to the formation of such a two-body system is highly challenging. Here, we challenge the scenario of a central black hole and show that the observed orbital dynamics can be explained under fairly general assumptions if the central dark object is a stable clump of bosonic particles of spin-0, or spin-1, known as a boson star. We further explain how future astrometric measurements of similar systems will provide an exciting opportunity to probe the fundamental nature of compact objects and test compact alternatives to black holes.Comment: 11 pages, 4 figures. Comments are very welcom

A new species of the planthopper genus Conosimus associated with an endemic shrub in southern Spain

The poorly-known genus Conosimus Mulsant et Rey, 1855 (Hemiptera: Fulgoroidea: Issidae) includes six species and is briefly reviewed. Adults and fifth instars of a new species, Conosimus baenai n. sp., are described and compared with other species in the genus. The new species is associated with an endemic shrub, Echinospartum boissieri, in Jaen, Spain, in the south of the Iberian Peninsula, one of the richest botanical areas of the Mediterranean Basin.info:eu-repo/semantics/publishedVersio

Einstein-Maxwell-scalar black holes: classes of solutions, dyons and extremality

Spherical black hole (BH) solutions in Einstein-Maxwell-scalar (EMS) models wherein the scalar field is non-minimally coupled to the Maxwell invariant by some coupling function are discussed. We suggest a classification for these models into two classes, based on the properties of the coupling function, which, in particular, allow, or not, the ReissnerNordstr¨om (RN) BH solution of electrovacuum to solve a given model. Then, a comparative analysis of two illustrative families of solutions, one belonging to each class is performed: dilatonic versus scalarised BHs. By including magnetic charge, that is considering dyons, we show that scalarised BHs can have a smooth extremal limit, unlike purely electric or magnetic solutions. In particular, we study this extremal limit using the entropy function formalism, which provides insight on why both charges are necessary for extremal solutions to exist.publishe

Cuatro cigarrillas de la subfamilia Typhlocybinae (Homoptera, Cicadellidae) nuevas para la fauna española

Los Tiflocíbinos son un grupo de insectos fitófagos poco conocidos en la Península Ibérica. Hasta ahora han sido citadas solamente unas setenta especies de cigarrillas. Del estudio del material recogido principalmente en el noroeste de España han resultado cua tro cigarrillas nuevas para la fauna española pertenecientes a la tribu Typhlocibini. De estas, dos especies son nuevas para la Península: Wagneripteryx germari (Zetterstedt, 1840) y Edwardsiana hippocastani (Edwards, 1888); las otras dos: Eurhadina ribauti Wagner, 1935 y Eupteryx filicum (Newman, 1853), son dos citas nuevas para España. Para cada especie se incluye información sobre su distribución, biología y plantas nutricias.Typhlocibid leafhoppers are a group of phytophagous insects little known in the Ibe rian Peninsula. Until now only about seventy leafhopper species have been recorded. After the study of material collected mainly from the northwest of Spain, four new spe cies records belonging to the tribe Typhlocibini were found. Of those, two species are new to the Iberian Peninsula: Wagneripteryx germari (Zetterstedt, 1840) and Edward siana hippocastani (Edwards, 1888), the other two: Eupteryx filicum (Newman, 1853) and Eurhadina ribauti Wagner, 1935, are new records to Spain. For each species infor mation on distribution, biology and food plants is included.info:eu-repo/semantics/publishedVersio

First report of Scaphoideus titanus for Madeira Island

This is the first report of Scaphoideus titanus, the main vector of flavescence dor ee, for Madeira (Portugal) and also for Macaronesia. This new record currently represents its southernmost occurrence in Europe. This leafhopper is present in most of the primary wine production regions in the north of Madeira island. There were no symptoms of flavescence dor ee disease during the monitoring period from 2010 to 2017. The ability of S. titanus to survive in regions with a subtropical climate suggests that it may also live in the most meridional areas of the Mediterranean region where, until now, it has been absent.info:eu-repo/semantics/publishedVersio