Figure 6. OEH I immunostaining in the perivisceral organs (PVO) and abdominal ganglia of adults. Pairs of immunostained PVO (arrowheads) at the anterior end of segments in the ventral body wall of a three day old Aedes aegypti female. AG, abdominal ganglion. Immunostained PVO (arrowheads) similarly positioned near the pericardial cells (PC) associated with the dorsal vessel (DV) in the dorsal body wall of the same female as in A. Immunostained PVO (arrowheads) in the dorsal body wall of an 11 day old Anopheles gambiae female. Detail of an abdominal ganglion and immunostained PVO in the ventral body wall of a five day old Ae. aegypti male. Immunostained axons (arrows) extend (out of the focal plane) from the immunostained cell (arrowhead) in the AG through the unpaired median nerve (MN) and transverse nerves (TN) to the PVO. Immunoperoxidase-stained PVO (arrowheads) wrapped around the attachment of the abdominal diaphragm (AD) to the ventral body wall (BW) of a six day old Ae. aegypti female. Top or right of figure, anterior or dorsal. Scale bar = 80 µm for A and B; 40 µm for C; 20 µm for D and E.