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Fig. 7. Hansson's histochemical stain of isolated adult male mosquito midguts
indicate that the enzyme is localized in the midgut of all the species with
the exception of Oc. taeniorhynchus. (A) An.
quadrimaculatus, (B) Ae. albopictus, (C) Cx.
quinquefasciatus, (D) Ae. aegypti, (E) An. albimanus,
(F) Oc. taeniorhynchus. Black arrows, posterior midgut; red arrows,
anterior midgut. Scale bars, 500 µm.