In Volume 69, Articles 9 and 11, of the Proceedings of the United States National Museum, R. C. Shannon has reviewed certain Syrphid genera. Apparently some of the synonymy cited is erroneous and I present some notes indicatating certain inconsistencies. It is well to point out that Shannon has not taken the trouble to examine types of species outside those found in the British Museum, Museum of Comparative Zoology, Cambridge, and the United States National Museum. Had he done so I feel sure that his conclusions in some cases would have been different.