Key to Species of Nostima Occurring in New Zealand

1. Wing hyaline ....................................................................................................... N. kiwistriata, new species

- Wing with pattern of brown spots................................................................................................................ 2

2. Abdominal tergites with silver microtementose spots .................................................... N. duoseta Cresson

- Abdominal tergites unicolorous without microtomentose spots .................. N. negramaculata, new species