Nysius caledoniae Distant, 1920 (Hemiptera: Heteroptera: Orsillidae) a recent introduction into New Zealand, and keys to the species of Nysius, and genera of Orsillidae, in New Zealand Author Eyles, A. C. 30 Mahana Rd, Paraparaumu Beach 5032, New Zealand. E-mail: alan. pat @ xtra. co. nz Author Malipatil, M. B. Department of Primary Industries, Knoxfield, Private Mail Bag 15, Ferntree Gully Delivery Centre, Vic. 3156, Australia. mallik. malipatil @ dpi. vic. gov. au text Zootaxa 2010 2010-05-26 2484 1 45 52 https://biotaxa.org/Zootaxa/article/view/zootaxa.2484.1.4 journal article 10.11646/zootaxa.2484.1.4 1175-5326 5304677 Key to the species of Nysius in New Zealand 1. Hemelytra with both semi-erect to erect setae, and short pubescence; with full double row of punctures along claval suture............................................................................................................................................................................. 2 - Hemelytra with one, only, of: semi-erect to erect setae, or short pubescence; with full single row of punctures following claval suture ..................................................................................................................................................... 3 2. Apex of scutellum rounded and upturned ( Fig. 1 ); vertex relatively flat, sunken below level of top of eyes; paramere ( Fig. 6−7 ) longer and less sharply curved ................................................................................................... caledoniae - Apex of scutellum pointed and level; vertex convex, elevated above level of top of eyes ( Fig. 11 ); paramere ( Fig. 8 ) shorter and more sharply curved ......................................................................................................................... huttoni 3. Hemelytra without short pubescence, but with long erect or semi-erect setae only........................................ convexus - Hemelytra with short pubescence, but without long erect or semi-erect setae.............................................. liliputanus