Fauna and identification key for the water boatmen (Hemiptera: Heteroptera: Corixidae) in Mazandaran and Golestan provinces

In order to investigate on fauna of Corixidae family in Mazandaran and Golestan provinces, specimens were collected randomly by sweeping net and light trap in various freshwater habitats ranging from lakes, rivers, streams, paddy fields, and irrigation channels during 2021-2022. The specimens were identified using valid taxonomic identification keys. In this study, totally, six species were collected and identified. Species which are reported for the first time from Mazandaran and Golestan provinces are marked by an asterisk. Identified species are listed as follows:Corixa affinis Leach, 1817, Corixa punctata (Illiger, 1807)*, Hesperocorixa linnaei (Fieber, 1848)*, Sigara nigrolineata nigrolineata (Fieber, 1848)*, Sigara striata (Linnaeus, 1758) *, Sigara lateralis (Leach, 1817)An identification key was also provided for genera and species reported from these provinces.