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redescription and distribution of Latrodectus geometricus in Uruguay (Araneae: Theridiidae). Biota Neotrop. 13(1): http:// www.biotaneotropica.org.br/v13n1/en/abstract?short-communication+bn02813012013Abstract: This study provides the first accurate records of Latrodectus geometricus C. L. Koch, 1841 for Uruguay and extends the known distribution of this species to the Southeastern region of South America. Data and figures of the genitalic morphology for the recognition of the species and natural history in this country are indicated. In Uruguay L. geometricus was mainly restricted to urban areas at the west of this country and it is associated with locations with high human activity.

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The male of Latonigena auricomis Simon, 1893 is described for the first time and the female is redescribed. New records are provided for Argentina, Brazil and Uruguay. Notes on the natural history and a potential distribution model of the species are presented in the Neotropical Region.

Cleruchoides noackae (Hymenoptera: Mymaridae), native to Australia, is the most promising biological control agent for Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae), an exotic Eucalyptus spp. pest in Brazil. The aim of this study was to determine the courtship behaviour, mating and oviposition of unmated or mated C. noackae females parasitizing T. peregrinus eggs utilizing the same rearing system used in biological control programmes in Brazil. The mating behaviour of eleven C. noackae unmated couples was observed and the time taken for males and females to find each other in polystyrene vials and the duration and number of copulations were recorded. Ten unmated or mated females were placed individually in vials with 10 T. peregrinus eggs each, and oviposition behaviour, percentage of eggs inserted and parasitized, viability and sex ratio of emerged C. noackae were recorded. This species lacked defined courtship behaviour and mated in less than an hour after adults' emergence. The time spent finding the first host, evaluating and inserting the ovipositor was similar for mated and unmated C. noackae females, as well as the frequency of inserted and parasitized eggs and their viability. Mated females took less time to find other host eggs and the sex ratio is female-biased. Occurrence of arrhenotokous parthenogenesis was confirmed. The ability of C. noackae to mate and lay eggs in less than one hour and parasitism of T. peregrinus eggs by females can improve the parasitoid mass rearing and biological control of T. peregrinus.

SUMMARYLeptocybe invasa is a recently introduced forest pest, responsible for significant economic loss in Eucalyptus spp. plantations worldwide. The objective of this work is to report its presence in Uruguay, providing data of its distribution and biology. A survey for galls was conducted from 2013 to 2015. The presence of galls was confirmed in 15 out of 35 surveyed points and four out of 157 traps. Eucalyptus benthamii was recorded as a new host. Three periods of emergence were observed. Life cycle was completed only in E. tereticornis, E. camaldulensis and E. grandis.

Las arañas son predadores generalistas en ecosistemas terrestres, ampliamente utilizadas en estudios de biodiversidad. En el último siglo, el paisaje de Uruguay se transformó en un mosaico de áreas formadas por ambientes naturales y agroecosistemas. ¿Qué nivel de cambio se espera hallar en la comunidad de arañas si las áreas de estudio están próximas? ¿Qué porcentaje de especies nativas serán reemplazadas con la plantación? ¿Cómo afecta esto a la biodiversidad local? Se realizó un estudio en cuatro áreas vecinas en INIA Las Brujas, Canelones: un bosque ribereño, un bosque de "Espinillo", una plantación de Eucalyptus globulus y una pradera artificial de Trifolium pratense y Avena sativa. Las arañas fueron capturadas con trampas de caída, trampas de tronco, segado, batido de follaje y colecta manual nocturna. Un total de 3.023 adultos fueron colectados. La mayor abundancia y riqueza de especies se observó en el bosque ribereño. A pesar de la proximidad de los sitios estudiados, se observó un alto reemplazo de especies, especialmente entre áreas naturales y agroecosistemas. Los protocolos de colecta utilizados podrían ser útiles para evaluar el impacto de agroecosistemas con diferentes tipos de manejos sobre la biodiversidad local y su aplicación en la certificación de calidad ambiental. Palabras clave: Diversidad, artrópodos, producción agropecuaria, impacto antrópico.

Resumen. En el presente trabajo contrastamos el análisis acústico de la F0 de un corpus formal y espontáneo de oraciones declarativas e interrogativas emitidas por doce informantes, mujeres y hombres sin estudios y con estudios superiores, procedentes de zonas urbanas y rurales de dos islas canarias, El Hierro y Fuerteventura. El objetivo es comprobar si los resultados obtenidos en el corpus formal son extensibles a distintas situaciones de habla. El análisis acústico se complementa con un etiquetaje fonético-fonológico que parte del modelo Métrico-Autosegmental según las directrices expuestas en Dorta (ed. 2013). El corpus fijo o formal está integrado por un total de 648 frases y el espontáneo por 546. Los resultados corroboran en las declarativas la existencia del mismo patrón entonativo básico en todos los corpus. En las interrogativas herreñas se registra un esquema ascendente que desaparece a favor del circunflejo propio de las hablas canarias conforme aumenta el grado de espontaneidad de las emisiones; en Fuerteventura este último patrón es constante en todos los niveles de habla. Palabras clave: F0, entonación, prosodia, variación diafásica enunciado, relaciones sintácticas.[en] The Canary Islands intonation: influence of the corpus of speech on the use of intonational patterns Abstract. This paper compares the acoustic analysis of the F0 of a formal and spontaneous corpus of declarative and interrogative sentences issued by twelve informants, women and men uneducated as well as with higher education, from urban and rural areas of two islands of the Canary Islands, El Hierro and Fuerteventura. Our aim is to check whether the results obtained in the formal corpus will also apply to different speech situations. The acoustic analysis is complemented with a phoneticphonemic labeling being part of the Autosegmental-Metric model under the guidelines set out in Dorta (ed. 2013). The fixed or formal corpus consists of a total of 648 sentences, and 546 the spontaneous one. The results underline the presence in the corpus of the same basic declarative intonational pattern in the declarative sentences. In the case of interrogative sentences in El Hierro, it is recorded a rising scheme that disappears in favor of the circumflex characteristic of the languages and dialects of the Canary Islands according to an increasing degree of spontaneity of speech. This pattern is constant at all levels of speech in Fuerteventura.