Abstract

GOMEZ, Graciela C.; CONTRERAS, Eugenia F.  and  TORREJON, Silvia E.. Diversity of the Heteroptera (Insecta: Hemiptera) aquatic and semi-aquatic assemblage of the Río Grande basin (Jujuy-Argentina) in an altitudinal and temporal gradientDiversidad del ensamble de Heteroptera (Insecta: Hemiptera) acuáticos y semiacuáticos de la cuenca del Río Grande (Jujuy-Argentina) en un gradiente altitudinal y temporal. Rev. Soc. Entomol. Argent. [online]. 2022, vol.81, n.2, pp.29-38.  Epub June 24, 2022. ISSN 0373-5680.

The objective of this work was to realize a preliminary stydy the diversity, composition and structure of the aquatic and semiaquatic Heteroptera assemblage of Río Grande basin (Jujuy, Argentina) along a temporal and spatial gradient. For the first time, a list of the taxa inhabiting the area is presented, which includes 11 genera belonging to eight families. The sites corresponding to the lower basin exhibited higher diversity, and the genus Rhagovelia was the most abundant in both hydrological seasons. In contrast, the upper basin exhibited a low diversity, and its assemblage was dominated by Ectemnostega, both in the wet and dry season. Significant differences in the diversity of aquatic and semiaquatic bugs at the temporal level were not found in this basin.

Keywords : Aquatic true bugs; Jujuy; Río Grande; Upper basin; Lower basin.