Fig. 2. Malpighian tubules of the female yellow fever mosquito, Aedes aegypti, examined by light (A,B) and electron (C) microscopy. BB, brush border; C, intracellular concretion; M, mitochondrion; N, nucleus; PC, principal cell; SC, stellate cell; SJ, septate junction. Scale bars, 300 µm (A), 40 µm (B), 2.5 µm (C).