Morphology of the Preimaginal Stages of Lasioptera donacis Coutin (Diptera: Cecidomyiidae), a Candidate Biocontrol Agent for Giant Arundo Cane

Figure 23

Lateral view of the prothoracic spatula. The head segment with antenna is to the far left. The head is seated in the collar segment within which the dark red Bolwig’s organ can be seen (far right). On the prothorax between the spatula and the collar segment are the sternal papillae, one of which can be seen as a round, tan colored structure (arrow). When the collar segment inverts it brings the mouth into close juxtaposition to the spatula and the sternal papillae.