We present the description of Chironomidae (Diptera) collected from Sirwan River watershed in Kurdistan province of Iran. This study is part of a larger monitoring program conducted from 2017 to 2018, surveying the freshwater flora and fauna of this watershed. Over half of the benthic invertebrates collected in this monitoring were Chironomidae, presenting the most diverse group. A total of 35 species of Chironomidae were found in Sirwan River Watershed of which 18 representing new faunistic records for Iran, range extensions for the Palearctic, and three being likely new species. Sirwan River is the largest running water habitat in the province of Kurdistan and an important resource for the local and regional economy. These studies help identify the organisms of freshwater ecosystems and provide useful tools for investigators, making better assessments of water conditions and improving their management.

我们介绍从伊朗库尔德斯坦省Sirwan河流域收集的猫科（Diptera）的描述。这项研究是2017年至2018年进行的一项较大监测计划的一部分，该计划调查了该流域的淡水动植物。在此监测中收集的底栖无脊椎动物中有超过一半是Chi科，是种类最多的一类。在西尔万河流域共发现35种尺ron科，其中18种代表伊朗新的动物记录，古范围的延伸，还有3种可能是新物种。瑟旺河是库尔德斯坦省最大的自来水栖息地，也是当地和区域经济的重要资源。这些研究有助于识别淡水生态系统的生物，并为研究人员提供有用的工具，