B. M. Mamaev & A. I. Zaitzev 1998: Sylvenomyia gen. n. in Sweden and a key to the genera of the tribe Winnertziini (Diptera : Cecidomyiidae, Porricondylinae). - Entomologica Fennica 9: 211-213.
A new porricondyline genus, Sylvenomyia, is described. Another new porricondyline genus, Cryptoxylomyia, is erected for a species previously referred to genus Rhipidoxylomyia Mamaev.