TY - JOUR T1 - The status of Melanostoma dubium (Diptera, Syrphidae). JF - Dipterists Dig. (2nd Ser.) Y1 - 1977 A1 - MacGowan, I A1 - Gilbert, F.S A1 - Rotherhay, G.E SP - 79 EP - 87 KW - Diptera KW - hoverfly KW - Syrphidae VL - 3 ER -