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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| O'Connor, J.P. & Nash, R. | 1983 | Insects imported into Ireland 5. Records of Orthoptera, Hemiptera, Hymenoptera and Coleoptera | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. & Nash, R. | 1997 | A review of the Irish Charipidae (Hymenoptera) including nine species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. & Nash, R. | 2001 | Notes on the Irish Torymidae (Hymenoptera) including eleven species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. & O'Connor, M.A. | 1983 | Calameuta.... | Published | | Details... |
| O'Connor, J.P. & O'Connor, M.A. | 1993 | Neuroterus aprilinus (Giraud) (Hymenoptera: Cynipidae) new to Ireland | Journal | Cecidology | Details... |
| O'Connor, J.P. & Ronayne, C. | 2003 | Oebalia minuta (Diptera) new to Ireland and second Irish records of Pteromalus apum and Torymus armatus (Hymenoptera) | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. & Speight, M.C.D. | 1987 | Macrosiphum albifrons, Dictenidia bimaculata, Callaspidia defonscolombei and Xylaspis petiolata: insects new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P., Boston, M.R. & Nash, R. | 2003 | Notes on the Irish Anomaloninae (Hymenoptera: Ichneumonidae) including seven species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P., Liston, A.D. & Speight, M.C.D. | 1997 | A review of the Irish sawflies (Hymenoptera: Symphyta) including a checklist of species | Journal | Bull. Ir. biogeog. Soc. | Details... |
| O'Connor, J.P., Nash, R. & Boucek, Z. | 2000 | A catalogue of the Irish Chalcidoidea | Journal | | Details... |
| O'Connor, J.P., O'Connor, M. & Van Achterberg, C. | 1991 | Some records of Irish Braconidae (Hymenoptera) including seven species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P., O'Connor, M.A. & Graham, M.W.R. de V. | 1989 | Some records of Irish Pteromalidae (Hymenoptera: Chalcidoidea) including five species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P., O'Connor, M.A. & Wistow, S. | 1993 | Some records of Irish Cynipidae (Hymenoptera) including ten species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P., O'Connor, M.A., Wistow, S. & Ashe, P. | 1993 | Notes on the distribution of Andricus kollari (Hartig) (Hymenoptera: Cynipidae) in Ireland | Journal | Bull. Ir. biogeog. Soc. | Details... |
| O'Connor, J.P., O'Connor, M.A., Wistow, S. & Ashe, P. | 1993 | Notes on Andricus lignicola (Hartig) (Hymenoptera: Cynipidae) in Ireland | Journal | Entomol. Rec. J. Var. | Details... |
| O'Connor, J.P., O'Connor, M.A., Wistow, S. & Ashe, P. | 1995 | Further records of Irish Cynipidae (Hymenoptera) including twenty eight species new to Ireland | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P., Schonrogge, K., Ashe, P., Crawley, M.J., O'Connor, M.A., Walker, P. & Wistow, S. | 1995 | The distribution of gall-causing cynipids (Hymenoptera) on oak (Quercus) in Ireland | Journal | Bull. Ir. biogeog. Soc. | Details... |
| O'Connor, M. | 1927 | Tree-wasps' nest inhabited by spider | Journal | Ir. Nat. J. | Details... |
| O'Mahony, E. | 1924 | Dublin insects | Journal | Ir. Nat. | Details... |
| O'Rourke, F.J. | 1940 | Dates for swarming ants, 1939 | Journal | Ir. Nat. J. | Details... |
599 references found.