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A HISTORY OF STAFFORDSHIRE ACARINA Mites The following list is compiled from the records contributed by Mr. Cyril Brett to the Reparts of the N. Staff. Field Club for 1902-3 (pp. 92-3), and 1905-6 (pp. 75-6). ERIOPHYINAE Eriophyes aucupariae, Conn. On Pyrus aucuparia Gaert., Alton, Aug. 1903 ; Rudyard, 25 July, 1905 ; Manifold Valley, Aug. 190; - axillaris, auct. On Alnus glutinosa, Medic., Alton, 12 Sept. 1902 ; Consall, Rudyard, July, 1905 invitarau, Nal. On Alnus glutinosa, Medic., Alton, 1 1 Sept. 1902 goniothorax, Nal. On Crataegus oxyacantha, L., Alton, Aug. 1903 ; Belmont, July, 1905 - lact'u, Nal. On Alnus glutinosa, Medic., Alton, 12 Sept. 1902 - macrochilus, Nal. On Acer campestre, L., Denstone, Aug. 1903 - macrorbynchus, Nal. On Acer campestre, L., Denstone, Aug. 1903 ; near Prestwood, 20 Aug. 1905 - rut/it, Canest. On Betula verrucosa, Erhr., common, Alton, Sept. 1902 ERIOPHYINAE continued Eriophyfs thomasi. On Thymus serpyllum, L., Ramshorn, July, 1903 slmilis, Nal. On Prunus spinosa, L., Alton, 2 1 July, 1904; Denstone, n Aug. 1905 tctanothrix laevis, Nal. On Salix caprea, L., Alton, Aug. 1903 PHYLLOCOPTINAE Pbyllocoptes acericola, Nal. On Acer pseudo- platanus, L., Dimmingsdale, 24 Sept. 1902 arianus, Nal. On leaves of Pyrus aria, Erhr., Belmont Woods, 22 July, 1905 fraxini, Nal. On Fraxinus excelsior, L., Alton, Aug. 1903 ; Belmont, 22 July; Rudyard, 25 July ; near Foxt, 31 July, 1905 124