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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Crawford, W.M. | 1933 | Painted lady and red admiral in Cos. Antrim and Donegal | Journal | Ir. Nat. J. | Details... |
| Crawford, W.M. | 1933 | Frequency of convolvulus hawk moth and clouded yellow butterfly | Journal | Ir. Nat. J. | Details... |
| Crawford, W.M. | 1933 | Milkweed butterfly, Danaus plexippus L., in Co. Dublin | Journal | Ir. Nat. J. | Details... |
| Ellison, C.S.S. | 1933 | Scarcity of spotted flycatcher and small tortoiseshell butterfly | Journal | Ir. Nat. J. | Details... |
| Greer, T. | 1933 | Colias croceus in east Tyrone | Journal | Ent. | Details... |
| Greer, T. | 1933 | Queen wasp and Euchloe cardamines | Journal | Entomol. Rec. J. Var. | Details... |
| Oldham, C. | 1933 | Painted lady and red admiral on the Mullet Peninsula | Journal | Ir. Nat. J. | Details... |
| Palmer, J.A.J. | 1933 | Frequence of the clouded yellow | Journal | Ir. Nat. J. | Details... |
| Stelfox, A.W. | 1933 | North American butterfly, Papilio glaucus L., in Co. Wicklow | Journal | Ir. Nat. J. | Details... |
| Wright, W.S. | 1933 | Clouded yellow butterfly in Co. Down | Journal | Ir. Nat. J. | Details... |
| B., C.E. | 1934 | The 'chalk hill blue' butterfly is not an Irish insect! | Journal | Ir. Nat. J. | Details... |
| Crawford, W.M. | 1934 | Silver-washed fritillary at Belfast | Journal | Ir. Nat. J. | Details... |
| Crawford, W.M. | 1934 | Early immigrant butterfly | Journal | Ir. Nat. J. | Details... |
| Crawford, W.M. | 1934 | Peacock and other butterflies | Journal | Ir. Nat. J. | Details... |
| Greer, T. | 1934 | Clouded yellow butterfly (Collias croceus) and convolvulus hawk moth (Sphinx convolvuli), etc., in East Tyrone | Journal | Ir. Nat. J. | Details... |
| Stelfox, A.W. | 1934 | Hibernation of the peacock butterfly | Journal | Ir. Nat. J. | Details... |
| Burns, G. | 1935 | Clouded yellow butterfly in Belfast | Journal | Ir. Nat. J. | Details... |
| Crawford, W.M. | 1935 | Hibernation of peacock butterflies | Journal | Ir. Nat. J. | Details... |
| Flynn, J.E. | 1935 | Immigrant butterflies | Journal | Ir. Nat. J. | Details... |
| Greer, T. | 1935 | Hibernation of Pyrameis atalanta | Journal | Entomol. Rec. J. Var. | Details... |
385 references found.