Title:The diet of the black widow spider Latrodectus mirabilis (Theridiidae) in two cereal crops of central Argentina / Dieta de la viuda negra, Latrodectus mirabilis (Theridiidae) en dos cultivos de cereales del centro de Argentina
Title:External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina / Ultraestructura externa de Manayunkia speciosa (Fabriciidae) del Río Uruguay, Argentina
Title:Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina) / Relaciones tróficas entre los macroinvertebrados y peces en un arroyo de la llanura pampeana (Argentina)
Title:Fitoplancton del embalse Yacyretá (Argentina-Paraguay) a una década de su llenado / Phytoplankton of the Yacyretá Reservoir (Argentina-Paraguay) after a decade from its filling
Title:Discovery of a second geophilomorph species (Myriapoda: Chilopoda) having twenty-seven leg-bearing segments, the lowest number recorded up to the present in the centipede order geophilomorpha