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

Figure 19

Longitudinal section from the anus of a N. abietis larva showing an innervated (arrowhead) seta (S) extending from the cuticle (C), which is underlain by a single layer of epithelial cells (Ep) and fat body (FB). Posteriorly directed cuticular spines are indicated by the arrows. Scale bar = 60 μm.