Histology of the Larval Neodiprion abietis (Hymenoptera: Diprionidae) Digestive Tract

Figure 10

Junction of the foregut (left) and midgut (right) showing the proventriculus (Pr), a gastric caecum (GC), and the origin (arrow) of the peritrophic membrane (PM). The anterior cells of the midgut also appear to contribute secreted material (arrowhead) to the peritrophic membrane. Scale bar = 0.1 mm.