The larval development of Dacus tryoni (Frogg.) (Diptera: Trypetidae). 2. Development of imaginal rudiments other than the principal discs.

Abstract

In D. tryoni, imaginal rudiments of the abdominal hypodermis, of the salivary gland, of the fore-, mid-, and hindgut, of the lateral cerebral ganglia, and of the tracheae, all of which are present as discrete components in the larva, grow by cell multiplication up to the time of puparium formation in the manner generally accepted for Cyclorrhapha. There is no indication in D. tryoni of the epigenetic relationship between lymph glands, haemocytes, and imaginal rudiments postulated for the larva of Drosophila melanogaster by el-Shatoury and Waddington.