Diversidad del ensamble de Heteroptera (Insecta) acuáticos y semiacuáticos de dos ríos urbanos del Noroeste Argentino

In Argentina, studies on aquatic Heteroptera have been conducted in the northwestern, northeastern, Pampean, Cuyo, and Patagonian regions, most of which have been carried out in protected areas. In the province of Jujuy, these insects have been poorly studied in urban environments; therefore, the objective of this study was to assess the diversity and abundance of aquatic and semi-aquatic Heteroptera from two urban rivers in San Salvador de Jujuy (Jujuy Province, Argentina). Three sampling sites were selected on the Xibi-Xibi and Río Grande rivers, and two sampling campaigns were conducted during the dry and wet seasons of 2021. Heteroptera were collected using a Surber net. A list of the taxa present in the area is provided, including five genera belonging to four families. The aquatic and semi-aquatic Heteroptera assemblages of the Xibi Xibi and Río Grande rivers were similar in terms of diversity. However, significant temporal differences were observed, with the rainy season exhibiting greater diversity than the dry season. The genus Rhagovelia was the most abundant in both rivers, while Ambrysus and Nerthra were exclusive to the Xibi-Xibi and Río Grande rivers, respectively. This represents the first contribution to the knowledge of aquatic and semi-aquatic Heteroptera in urban environments of San Salvador de Jujuy.