Sphaerogastrella angustifrons Okada 1992

Okada 1992. New or little known species of the genera Liodrosophila Duda and Sphaerogastrella Duda (Diptera, Drosophilidae) from Papua New Guinea and S.E. Asia. Japanese Journal of Entomology, 60(4), December 25 1992: 827-838