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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Mentzer, E. von, Moberg, A. & Fibiger, M. | 1991 | Noctua janthina (D. & S.) sensu auctum complex of three species (Lepidoptera: Noctuidae) | Journal | Nota Lepid. | Details... |
| Morris, M.G. | 1991 | Phytobius zumpti Wagner,1939 (Curculionidae) in Britain - a preliminary note and an appeal for records | Journal | Coleopterist's Newsl. | Details... |
| Murray, A.M. & Giller, P.S. | 1991 | Life-history and overwintering tactics of Velia caprai Tam. (Hemiptera: Veliidae) in Southern Ireland | Journal | Aquat. Insects | Details... |
| O'Connor, J.P. | 1991 | Review: 'Local lists of Lepidoptera' by J.M. Chalmers-Hunt | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. | 1991 | Review: 'Aphid predators' by G.E. & J.C. Rotheray | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. & Ashe, P. | 1991 | Swarming of Coboldia fuscipes (Meigen) (Diptera: Scatopsidae) in Co. Dublin | Journal | Ir. Nat. J. | Details... |
| O'Connor, J.P. & Rigney, S. | 1991 | A second Wexford record of Pyrochroa serraticornis (Scopoli) (Coleoptera) | Journal | Ir. Nat. J. | 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., Winter, T.G. & Good, G.A. | 1991 | A review of the Irish Scolytidae (Insecta: Coleoptera) | Journal | Ir. Nat. J. | Details... |
| Phillips, J.C.L. | 1991 | Excursion: Rea's Wood, Antrim | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Plant, C.W. | 1991 | Wesmaelus balticus (Tjeder) (Neuroptera: Hemerobiidae) new to Scotland, with a review of British records | Journal | Ent. Gaz. | Details... |
| Ribera, I. & Foster, G.N. | 1991 | Hydroporous longicornis Sharp (Coleoptera: Dytiscidae) rediscovered in Ireland | Journal | Ir. Nat. J. | Details... |
| Rippey, I. | 1991 | Records of moths (Lepidoptera) in Northern Ireland, 1990 | Journal | Ir. Nat. J. | Details... |
| Rippey, I. | 1991 | 1990 Butterfly and moth report for Northern Ireland | Report | | Details... |
| Scoble, M.J. | 1991 | Classification of the Lepidoptera | Chapter | | Details... |
| Smithers, C.N. & O'Connor, J.P. | 1991 | New records of Psocoptera (Insecta) (booklice, barklice) from Ireland, including a species previously known from New Zealand | Journal | Ir. Nat. J. | Details... |
| Speight, M.C.D. | 1991 | Callicera aenea, C. aurata, C. fagesii and C. macquartii redefined, with a key to and notes on the European Callicera species (Diptera: Syrphidae) | Journal | Dipterists Dig. | Details... |
| Thomas & Lewington | 1991 | Large Copper | Book | | Details... |
| Thomas, J. & Lewington, R. | 1991 | The butterflies of Britain and Ireland | Book | | Details... |
| Valentine, J., Blackith, R.E. & Blackith, R.M. | 1991 | Kimosina empirica, Leptocera cryptochaeta, Spelobia clunipes, S. nana, S. talparum, S. palmata and Telomerina flavipes (Diptera: Sphaeroceridae) flies new to Ireland | Journal | Bull. Ir. biogeog. Soc. | Details... |
4097 references found.