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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| O'Mahony, E. | 1940 | Some Irish Coleoptera records | Journal | Ent. Monthly Mag. | Details... |
| O'Mahony, E. | 1944 | Macroplea appendiculata Panzer (Coleoptera: Chrysomelidae) in Ireland | Journal | Ent. Monthly Mag. | Details... |
| O'Mahony, E. | 1947 | The mammal ectoparasites of the North Bull Island, Dublin Bay | Journal | Ir. Nat. J. | Details... |
| O'Mahony, E. | 1948 | Anommatus 12-striatus Mull. (Coleoptera: Colydiidae) and Adalia bipunctata (Coleoptera: Coccinellidae) in Co. Dublin | Journal | Ent. Monthly Mag. | Details... |
| O'Mahony, E. | 1949 | Lyctus brunneus Steph. (Coleoptera: Lyctidae) and Heterobostrichus aequalis Waterh. (Coleoptera: Bostrichidae) in Ireland | Journal | Ent. Monthly Mag. | Details... |
| O'Meara, M. | 1974 | Passage of insects near Dunmore East, Co. Waterford | Journal | Ir. Nat. J. | Details... |
| O'Meara, M. | 1975 | Occurrence of convolvulus hawk moth (Herse convolvuli L.) in Co. Waterford in 1974 | Journal | Ir. Nat. J. | Details... |
| O'Neill, N. | 1978 | Relationships between arthropod populations and sward composition in grassland | Chapter | | Details... |
| O'Riain, S., Ryan, M.F. & McNaeidhe, F. | 1977 | Carabid beetles and the biological control of the cabbage root fly | Book | | Details... |
| O'Rourke, F.J. | 1940 | Dates for swarming ants, 1939 | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1940 | Notes on the ant fauna of Howth, County Dublin | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1942 | Irish records for death's-head hawk-moth, 1940 | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1943 | Early appearance of bumble bees | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1945 | Method used by wasps of the genus Vespa in killing prey | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1946 | The discovery of the rare ant, Stenamma westwoodi Westwood, in Co. Wicklow | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1948 | Some dragonfly records from Co. Clare | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1950 | Ants as beneficial insects | Book | | Details... |
| O'Rourke, F.J. | 1950 | The dangers of the carriage of insects by aircraft and a suggested precautionary measure | Book | | Details... |
| O'Rourke, F.J. | 1955 | Bombus pratorum L. in County Cork | Journal | Ir. Nat. J. | Details... |
| O'Rourke, F.J. | 1956 | The Bombidae of County Cork | Journal | Ir. Nat. J. | Details... |
4097 references found.