Nymphomyia succina sp.n., the first fossil nymphomyiid fly (Diptera) from t
he Eocene Baltic and Bitterfeld amber is described and figured, based on fo
ur males. A probably conspecific female from the Baltic amber is also descr
ibed and figured. With the discovery of this species, a gap in the distribu
tion pattern of extant Nymphomyiidae is closed. It is probable that nymphom
yiids colonized the eastern Nearctic Region via the Thule landbridge approx
imately 25-30 million years before present.