N. O. Dronen and C. K. Blend, “Observations on the Parorchis acanthus complex (Philophthalmidae: Parorchiinae) with the description of three new species of Parorchis Nicoll, 1907 and the replacement of the preoccupied junior homonym Paratrema Dronen & Badley, 1979 with Stenomesotrema nomen novum”, Zootaxa, vol. 1843, no. 1, pp. 1–23, Aug. 2008.