The bee family Halictidae (Hymenoptera: Apoidea) collected from Gorgan county, northern Iran

Collecting data of the family Halictidae are reported in Gorgan county, Golestan province, northern Iran. We collected 30 species belonging to 5 genera in 3 subfamilies. Among them, Lasioglossum (Hemihalictus) croceipes (Morawitz, 1876) and Halictus (Seladonia) confusus Smith, 1853 are recorded from Iran for the first time and 18 species are new for Gorgan county. Among 112 collected specimen, the subfamily Halictinae (27 species), genus Lasioglossum (14 species) and subgenus Lasioglossum (5 species), representing the major groups of halictid bee and Halictus (Halictus) brunnescens (Eversmann, 1852) was the most abundant species in the study areas. Knapweed flowers (Centaura spp.) had higher halictid bee taxa richness. An updated checklist of halictid bees of Gorgan county is provided.