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

Figure 17

Detail of the ileum showing bacteria (B) in the gut lumen, the thick cuticle (C), single layer of epithelial cells (Ep), and layers of circular muscles (CM). A Malpighian tubule (MT) is visible in the hemocoel. Scale bar = 30 μm.