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The immature stages of Phaulacridium marginale (Walker) and Sigaus campestris (Hutton) (Orthoptera: Acrididae).
(University of Canterbury. Zoology, 1967)
This thesis is a study of the developmental stages of two species of grasshopper. The primary aims have been to establish the number of nymphal instars in each species, to describe and illustrate the anatomical differences ...