Faunistic study of chironomidae in the Jajrood River

Chironmidae is one of the zoo-ecological unique group in the aquatic ecosystem. These insects are among the frequent larvae in shallow areas of the lakes, pools and road which has a dense cover of aquatic plants. This study was conducted to identify the Chironomidae living in Jajrood stream. Sampling programmed seasonally for four selected station (Qeshm, Saeed Abad, Khojir and Pakdasht) by dredge in three replications for each station in 2015. Samples were transferred in ethanol 70% to the laboratory. In the laboratory, larvae were separated from other substrate elements, after calcifying the samples, they were permanently fixed. Identification was done by use of available keys to genus level. The result showed that four genus Chironomus, Diamesa, Pseudodiamesa belonged to sub-family Chironominae, Diamesinae, Orthocladiinae were collected from Jajrood.