Note in pencil on reverse "Agrilus biguttatus (Bup. biguttata) Plate 45. 9 times enlarged" MANU WILSON, Margaret Rankin D.A. (G.S.A.) < 1939 Glasgow Watercolour illustration of beetle from William Hunter's collection. Source of plate in R.A. Staig (1940) 'The Fabrician Types of Insects in the Hunterian Collection at Glasgow University: Coleoptera Part II'