References
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- Goldson , S. L. , Frampton , E. R. , Barratt , B. I. P. and Ferguson , C. M. 1984 . The seasonal biology of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae), an introduced pest of New Zealand lucerne . Bulletin of entomological research , 74 : 249 – 259 .