''Episyrphus nigromarginatus'' is a species of
hoverfly first recorded in
Transvaal Transvaal is a historical geographic term associated with land north of (''i.e.'', beyond) the Vaal River in South Africa. A number of states and administrative divisions have carried the name Transvaal.
* South African Republic (1856–1902; af, ...
,
South Africa. It was described as a «small, moderately slender species» with respect to other South African ''Episyrphus'' species such as ''
E. circularis'' or ''
E. flavibasis.''
References
Syrphini
Diptera of Africa
Insects described in 1973
{{Syrphidae-stub