On the Growth of the Head in the Larva of Anopheles maculipennis, Meig.

Abstract

While measuring the separate parts of the head in larvae of Anopheles maculi-pennis in the summer of 1926, I observed that in the later stages of the development in each phase the posterior part of the head is in the form of a collar, the length of which increases up to the next moult, whereas the anterior part of the head remains unchanged.