Zootaxa 4263 (1): 001–042 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2017 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4263.1.1 http://zoobank.org/urn:lsid:zoobank.org:pub:78E0852E-F66A-44E4-8798-E5187185C950 A revision of the New Zealand weevil genus Irenimus Pascoe, 1876 (Coleoptera: Curculionidae: Entiminae) SAMUEL D. J. BROWN1,2,3 1Bio-Protection Research Centre, PO Box 85084, Lincoln University 7647, Canterbury, New Zealand 2AgResearch, Gerald St, Lincoln, Canterbury, New Zealand 3Correspondence. E-mail:
[email protected] Table of contents Abstract . 1 Introduction . 2 Methods . 3 Irenimus Pascoe, 1876. 5 Key to species of Irenimus. 8 1. Irenimus aniptus Brown, new species. 10 2. Irenimus crinitus Brown, new species . 14 3. Irenimus duplex (Broun, 1904) . 15 4. Irenimus minimus Brown, new species . 18 5. Irenimus parilis Pascoe, 1876 . 20 6. Irenimus stichus Brown, new species . 22 7. Irenimus thoracicus Brown, new species . 24 Molecular diagnostics . 27 Changes in the concept of Irenimus Pascoe . 30 Chalepistes Brown, new genus . 34 Acknowledgements . 39 References . 39 Abstract The taxonomy of the New Zealand weevil genus Irenimus Pascoe, 1876 is revised, resulting in a narrower concept of the genus than has been considered in recent decades. In total, the genus now contains only seven species. In addition to the type species, I. parilis Pascoe, 1876, the genus contains I. duplex (Broun, 1904) and five newly described species: I. an- iptus new species (type locality, Oamaru, DN), I. crinitus new species (type locality, Hakataramea Valley, SC), I.