Fig. 9
Transmission electron micrographs showing the ultrastructural in the midgut of the normal third larval instar of C. pipiens mosquito a, b The normal structure of the epithelium showing the nucleus having scattered chromatin. c, d the gut cytoplasm has mitochondria and microvilli. Cy(cytoplasm), M (mitochondria), N (nucleus), Ne (nuclear envelope), and MV (microvilli)