@article {2551,
	title = {[Pseudoxiphydria betulae Ensl., (Hymenoptera, Xiphydriidae)]},
	journal = {Annales Entomologici Fennici},
	volume = {35},
	year = {1969},
	pages = {238, ref. 241},
	author = {Kontuniemi, T.}
}
