P. stramineus was originally named Erirhinus stramineus by Broun in 1881.[4] Then, in 1926, Marshall described a new genus called Dorytomodes, into which he provisionally transferred all species placed by Broun in Erirrhinus [=Erirhinus].[5]Dorytomodes was subsequently sunk as a synonym of Peristoreus by Edward S. ("Ted") Gourlay in 1950.[6]
^ abKuschel, G. 1982: Apionidae and Curculionidae (Coleoptera) from the Poor Knights Islands, New Zealand. Journal of the Royal Society of New Zealand, 12(3): 273-282. doi:10.1080/03036758.1982.10415349 [See p. 280; 'syn. nov.']
^Broun, T. 1881: Manual of the New Zealand Coleoptera. Part II. Colonial Museum and Geological Survey Department, Wellington. doi:10.5962/bhl.title.9559 [See p. 709]
^Marshall, G.A.K. 1926: Some new Curculionidae from New Zealand (Col.) Annals and Magazine of Natural History (9), 18(103): 1-16, plate I. doi:10.1080/00222932608633472 [See p. 10; '... Erirrhinus, Broun (nec Schh.), must provisionally be merged in Dorytomodes.']
^Gourlay, E.S. 1950: Auckland Island Coleoptera. Transactions of the Royal Society of New Zealand, 78(2-3): 171-202, plates 21-23. Full article (PDF) [See p. 197; 'n.syn.']
^Kuschel, G. 1982: Apionidae and Curculionidae (Coleoptera) from the Poor Knights Islands, New Zealand. Journal of the Royal Society of New Zealand, 12(3): 273-282. doi:10.1080/03036758.1982.10415349 [See p. 280]
^Sullivan, J.J.; Burrows, C.J.; Dugdale, J.S. 1995: Insect predation of seeds of native New Zealand woody plants in some central South Island localities. New Zealand journal of botany, 33(3): 355-364. doi:10.1080/0028825X.1995.10412962 [See p. 359]