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Mar del Plata, Argentina

Dellape G.,CONICET | Rider D.A.,North Dakota State University | Dellape P.M.,Division Entomologia | Dellape P.M.,CONICET
Revista Brasileira de Entomologia

In this contribution, we present new distributional records from Argentina of 63 pentatomid species; three genera (. Caonabo, Cromata and Taurocerus) and 14 species (. Marmessulus brasiliensis, Podisus crassimargo, Cromata ornata, Acledra haematopa, Caonabo pseudocylax, Dichelops avilapiresi, Euschistus cribarius, E. paranticus, Mormidea maculata, Rio indistinctus, Banasa lanceolata, B. nigrifrons, Pallantia macunaima, and Taurocerus edessoides) are reported for the first time from Argentina; also we provided 81 new province records of another 49 species. © 2015 Sociedade Brasileira de Entomologia. Source

Cabrera N.,Division Entomologia | Sosa A.,Fundacion para el Estudio de Especies Invasivas FuEDEI | Telesnicki M.,University of Buenos Aires | Julien M.,CSIRO

Kuschelina bergi (Harold, 1881) is being studied to be evaluated as a natural enemy of Phyla nodiflora var. minor (Hook.) N. O’Leary & Múlgura (Verbenaceae), an invasive weed in Australia. Eggs, and 1st and 3rd instar larvae are described and illustrated for the first time. The following characters distinguish Kuschelina bergi: presence of two medial setae in prosternum, mesosternum and metasternum, absence of tubercle on sternum I and eight setae in abdominal segment IX. The 3rd instar larvae of K. bergi resemble Kuschelina gibbitarsa (Say) larvae: the body shape and details of mouthparts are similar, but the morphology of the mandible is different, as is the tarsungulus which has a single seta. Differences between K. bergi and other known larvae of Oedionychina are discussed. New biological data based on laboratory rearing and field observation are also presented and discussed. © Nora Cabrera et al. Source

Diaz-Nieto L.M.,CONICET | Macia A.,Division Entomologia | Parisi G.,National University of Quilmes | Farina J.L.,Area Entomologia | And 3 more authors.

Although Mar del Plata is the most important city on the Atlantic coast of Argentina, mosquitoes inhabiting such area are almost uncharacterized. To increase our knowledge in their distribution, we sampled specimens of natural populations. After the morphological identification based on taxonomic keys, sequences of DNA from small ribosomal subunit (18S rDNA) and cytochrome c oxidase I (COI) genes were obtained from native species and the phylogenetic analysis of these sequences were done. Fourteen species from the genera Uranotaenia, Culex, Ochlerotatus and Psorophora were found and identified. Our 18S rDNA and COI-based analysis indicates the relationships among groups at the supra-species level in concordance with mosquito taxonomy. The introduction and spread of vectors and diseases carried by them are not known in Mar del Plata, but some of the species found in this study were reported as pathogen vectors. © 2013 Díaz-Nieto et al. Source

The type specimens of Tettigoniidae described by S. de Toledo Piza were photographed for Orthoptera Species File Online and examined. As a result of this revision several species are moved to different genera and two species to different subfamilies, 20 genera and 10 species are synonymized, one species is resurrected from synonymy, and two new genera are created, each accommodating a unique species described by Piza: Toledopizia gen. nov. (Conocephalinae: Copiphorini) and Pizatettix gen. nov. (Pseudophyllinae: Platyphyllini). In total there are 32 new combinations of species names. The paper includes a checklist and explanations for all nomenclatural changes. Copyright © 2010 Magnolia Press. Source

Paradell S.L.,Division Entomologia | Macia A.,Division Entomologia | Asborno M.,National University of La Plata | Catalano M.I.,Division Entomologia | And 7 more authors.
Studies on Neotropical Fauna and Environment

We identified the species of Cicadellidae associated with rice fields from an agricultural experimental station of La Plata city, Argentina, and explored the diversity pattern of the leafhopper assemblage. Insects were obtained from rice and surrounding weeds between 2006 and 2010. Syncharina argentina (Berg) and Agalliana ensigera Oman were the most abundant species in rice and weeds, respectively. Diversity (H′), heterogeneity (D) and evenness (J) indices were estimated. There was a significant effect of crop cycle (2006 to 2010) and host plant (rice and weeds) on H′ and D, with the interaction between them being not significant. Evenness was similar in rice lots and weeds, but differed between crop cycles. The pattern of abundance of species within rice lots and weeds followed the logarithmic model. Possible explanations for this pattern are discussed. The importance of the presence of some species as vectors of plant pathogens is highlighted. © 2014, © 2014 Taylor & Francis. Source

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