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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Pack-Beresford, D.R. | 1904 | Another nest of Vespa rufa-austriaca | Journal | Ir. Nat. | Details... |
| Pack-Beresford, D.R. | 1905 | Psithyrus campestris in Co. Carlow | Journal | Ir. Nat. | Details... |
| Pack-Beresford, H.D. | 1931 | Wasps in combat | Journal | Ir. Nat. J. | Details... |
| Palmer, J.A.J. | 1942 | On the wasp Sphex lutaria | Journal | Ir. Nat. J. | Details... |
| Palmer, J.A.J. | 1943 | Persistent nest-building by wasps | Journal | Ir. Nat. J. | Details... |
| Patterson, R. | 1905 | Sirex gigas in the north | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1912 | Notes on the increase and decrease of some mammals, birds and insects in the county of Louth during the last fifty years | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1919 | A wasp's nest | Journal | Ir. Nat. | Details... |
| Percival, M.S. | 1955 | The presentation of pollen in certain angiosperms and its collection by Apis mellifera | Journal | New Phytol. | Details... |
| Perkins, J.F. | 1953 | Notes on British Ichneumoninae with descriptions of new species | Journal | Bull. Brit. Mus. Ent. | Details... |
| Perkins, J.F. | 1959 | Hymenoptera: Ichneumonoidea: Ichneumonidae | Book | | Details... |
| Perkins, J.F. | 1960 | Hymenoptera: Ichneumonoidea: Ichneumonidae: Ichneumoninae II, Alomyinae, Agriotypinae & Lycorinae | Book | | Details... |
| Perkins, J.F. | 1976 | Hymenoptera: Bethyloidea (excluding Chrysididae) | Book | | Details... |
| Perkins, R.C.L. | 1919 | The British species of Andrena and Nomada | Journal | Trans. Roy. Ent. Soc. Lond. | Details... |
| Phillips, R.A. | 1921 | Nests of the ant Stenamma westwoodi, discovered in Ireland | Journal | Ir. Nat. | Details... |
| Phillips, R.A. | 1921 | Donisthorpea mixta and D. umbrata, two ants new to Ireland | Journal | Ir. Nat. | Details... |
| Pintureau, B. | 2003 | Systematics and biogeography of two Trichogramma (Hymenoptera: Trichogrammatidae) species described from the Parisian Region, France | Journal | Bull. Ir. biogeog. Soc. | Details... |
| Praeger, R.Ll. | 1893 | The pine sawfly (Lophyrus pini) in the north of Ireland | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1893 | Sirex gigas in the north of Ireland | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1898 | A plague of ants | Journal | Ir. Nat. | Details... |
599 references found.