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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Cuthbert, H.K.G. | 1903 | Irish aculeate Hymenoptera | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1903 | Entomological notes of the season | Journal | Ir. Nat. | Details... |
| Morley, C. | 1903 | Ichneumonologia Brittanica, the Ichneumons of Great Britain | Book | | Details... |
| Pack-Beresford, D.R. | 1903 | Notes on wasps | Journal | Ir. Nat. | Details... |
| Pack-Beresford, D.R. | 1903 | Hibernation of queen wasps | Journal | Ir. Nat. | Details... |
| Saunders, E., Morice, F.D. & Morley, C. | 1903 | Three weeks in south Kerry. Hymenoptera | Journal | Ir. Nat. | Details... |
| Anon. | 1904 | Review: 'The Irish bee guide' by J.G. Digges | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1904 | Ichneumonidae and Braconidae from the north of Ireland | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1904 | A few Irish Ichneumonidae | Journal | Ent. Monthly Mag. | Details... |
| Pack-Beresford, D.R. | 1904 | Another nest of Vespa rufa-austriaca | Journal | Ir. Nat. | Details... |
| Belfast Naturalists' Field Club | 1905 | Belfast Naturalists' Field Club | Journal | Ir. Nat. | Details... |
| Belfast Naturalists' Field Club | 1905 | Summer Session: excursion to Church Hill, County Armagh | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Halbert, J.N. | 1905 | Psithyrus campestris in Co. Wicklow | Journal | Ir. Nat. | Details... |
| Moffat, C.B. | 1905 | Vespa austriaca in Co. Wexford | Journal | Ir. Nat. | Details... |
| Morley, C. | 1905 | On the Ichneumonidous group Tryphonides schizodonti Holmgr. with descriptions of new species | Journal | Trans. Roy. Ent. Soc. Lond. | Details... |
| Pack-Beresford, D.R. | 1905 | Psithyrus campestris in Co. Carlow | Journal | Ir. Nat. | Details... |
| Patterson, R. | 1905 | Sirex gigas in the north | Journal | Ir. Nat. | Details... |
| Belfast Naturalists' Field Club | 1906 | Belfast Naturalists' Field Club | Journal | Ir. Nat. | Details... |
| Belfast Naturalists' Field Club | 1906 | Summer Session: Donegal | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Moffat, C.B. | 1906 | The struggle for existence | Journal | Ir. Nat. | Details... |
599 references found.