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

Figure 12

The base of a midgut columnar epithelial abuts against the basal lamina (BL) and circular muscle (CM). Fine, finger-like projections of the basal lamina cause invaginations of the epithelial cell plasma membrane (arrowheads). Mitochondria in the epithelial cell are indicted by the arrows. Scale bar = 1 μm.