First records of four species of the long-legged flies (Diptera: Dolichopodidae) from Azerbaijan, with addition to the national checklist

First records of four species of the family Dolichopodidae are given. Argyra ilonae Gosseries, 1988 from subfamily Diaphorinae, Dolichopus agilis Meigen, 1824 from subfamily Dolichopodinae, Medetera glaucella Kowarz, 1877 from subfamily Mediterinae and Syntormon tarsatus (Fallén, 1823) from subfamily Sympycninae increase the current national species list to 86 species. The completed nation checklist of long-legged flies of Azerbaijan is presented.