FIGURE 4 in Ultrastructural observation of digestive tract and the adaptative characteristics of dietary habits for ground-dwelling and omnivorous insects

FIGURE 4. Scanning electron microscope observation of the V. micado. A–D. Crop (Cr). (The long and thin spines on the inner surface of the crop are pointed out with arrows.) E–L. Proventriculus (Pv). (ST: Sclerotized lobes; MT: Median tooth; SL: Sclerotized lobes) M–N. Gastric caecum (Gc). O–Q. Midgut. R–T. Ileum. U. Malpighian tubules (MTs). (The micro-tracheae are pointed out with arrows.) V–W. Colon. X–Y. Rectum.