An account of the systematics, anatomy and bionomics of Austroperla Cyrene Newman.

The black stonefly Austroperla cyrene Newman (P11) is the most abundant insect of its order in New Zealand. A study of its anatomy and bionomics is of interest, firstly because of the primitive nature of the insect itself, and secondly in its relationship to the fauna of mountain streams, which is again correlated with the question of trout food