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Fig. 3. PRXamide-like immunoreactivity (PRXa-LI) in fifth-instar R.
prolixus. Ventral views of (A) brain, (B) sub-oesophageal ganglion, (C)
prothoracic ganglion (PRO) and (D) the mesothoracic ganglionic mass. In A,
note the lateral immunoreactive cells (open arrows). In B, note the numerous
bilaterally paired cell bodies (open arrows) lying medially. In C, note the
lightly staining immunoreactive varicosities over the ventral PRO. In D, note
the immunoreactive cell bodies (open arrows) and extensive neurohaemal-like
immunoreactivity on the abdominal nerves (closed arrows). The intensity of
staining of these cells is greatly reduced 34 h following feeding (see
later). Scale bar, 100 µm.