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Published online by Cambridge University Press: 31 May 2012
Richards (1972) described Aulacorthum pterinigrum from a holotype and eight paratypes on Pteris sp., Vancouver, B.C., 15 June 1967 (Fitz-Gerald), and two paratypes on Vaccinium sp., Terrace, B.C., 18 July 1960 (W.R. Richards). Chan has recently discovered that the holotype and paratype slides from “Pteris” should actually have been from Pieris sp., not Pteris sp. Pieris is a genus in the family Ericaceae, as also is the genus Vaccinium, mentioned above for two paratypes.