Abstract: This article reported five species, one variant of Tympais of northeastern China, including one new species (Tympanis tiliae Xiang et Song), four new recorded species (T. confusa Nyl., T. abietina Groves, T. piceina Groves, T. alnea (Pers.) Fr.), one new recorded variant (T. alnea var. hysterioides Rehm). We have studied the morphological and cultural charactersto every species and verified that T. confusa is a pathogen causing bleebingcanker of korean pine (Pinus koraiensis) by Koch's postulates.