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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Palmer, J.A.J. | 1933 | Frequence of the clouded yellow | Journal | Ir. Nat. J. | Details... |
| Rankin, M.N. & Rankin, D.H. | 1942 | The 1941 clouded yellow immigration | Journal | Ir. Nat. J. | Details... |
| Rathborne, H.B. | 1918 | Gonepteryx rhamni in Co. Fermanagh | Journal | Ir. Nat. | Details... |
| Ratnieks, F. | 1981 | Survey of the orange-tip butterfly ova on flowering heads of cruciferous plants in Northern Ireland in 1981 | Ph.D. Thesis | | Details... |
| Reynell, H.E. | 1899 | Colias edusa in Co. Westmeath | Journal | Ir. Nat. | Details... |
| Rippey, I. | 1984 | The purple hairstreak and brimstone butterflies in Northern Ireland, 1983 | Journal | Ent. Gaz. | Details... |
| Russell, S.G. | 1929 | Pieris napi | Journal | Proc. Trans. S. Lond. Entomol. Nat. Hist. Soc. | Details... |
| Ruttledge, R.F. | 1948 | Clouded yellow butterflies in Ireland | Journal | Ir. Nat. J. | Details... |
| Scully, R. | 1929 | Clouded yellow and other butterflies in County Cork | Journal | Ir. Nat. J. | Details... |
| Smith, G.S. & Smith, W | 1929 | Pieris brassicae, L., with special reference to aberrations from Aberdeenshire | Journal | Entomol. Rec. J. Var. | Details... |
| Stawell, F. | 1902 | Gonepteryx rhamni in Co. Cork | Journal | Ir. Nat. | Details... |
| Stelfox, A.W. | 1921 | The wood white butterfly in Co. Dublin | Journal | Ir. Nat. | Details... |
| Stelfox, A.W. | 1927 | A late appearance of the wood white butterfly | Journal | Ir. Nat. J. | Details... |
| Stelfox, A.W. | 1935 | Clouded yellow butterfly in the Aran Islands in July, 1934 | Journal | Ir. Nat. J. | Details... |
| Stelfox, A.W. | 1935 | Brimstone butterfly and early bees in Co. Dublin | Journal | Ir. Nat. J. | Details... |
| Stelfox, A.W. | 1936 | Clouded yellow butterfly in Phoenix Park, Dublin | Journal | Ir. Nat. J. | Details... |
| Stelfox, A.W. | 1946 | Bath white butterfly in Ireland | Journal | Ir. Nat. J. | Details... |
| Stelfox, G.M. | 1935 | Clouded yellow butterfly in Co. Kerry, 1934 | Journal | Ir. Nat. J. | Details... |
| Stendall, J.A.S. | 1941 | Clouded yellow butterfly in the north | Journal | Ir. Nat. J. | Details... |
| Stendall, J.A.S. | 1942 | The 1941 clouded yellow immigration | Journal | Ir. Nat. J. | Details... |
90 references found.