Figure 5
The precocious lobula plate is supplied by the dorsal three stemmata, but not the ventral three stemmata, of the larval whirligig beetle. A-I: Nine consecutive reduced silver-stained horizontal sections of the 3rd instar larval visual system from dorsal to ventral, and their corresponding schematic drawings, show the three larval laminas (LrLA) and the precocious lobula plate (LrLOP, pink) supplied from the dorsal three stemmata (St6, orange; St1, yellow; St5, green), but not the ventral three stemmata (St2, teal; St4, blue; St3, purple). All panels are of the same magnification (bar in A = 50 μm).