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Figure 6 | Frontiers in Zoology

Figure 6

From: A precocious adult visual center in the larva defines the unique optic lobe of the split-eyed whirligig beetle Dineutus sublineatus

Figure 6

Schematics comparing the larval and adult optic lobes of the tiger beetle Cicindela (after [[1,][5]]) and the whirligig beetle D. sublineatus. Upper and lower left: Both larvae are ambush predators and are equipped with precociously developed larval lobula plates (LrLOP, pink) that contain wide-field neurons supplied by uncrossed axons from prominent stemmatal laminas (St LA). These receive their inputs from the dorsal-most stemmata in tiger beetle larva (St 1 and 2) and whirligig larva (St 1, 5 and 6). Upper and lower right: During pupal metamorphosis, larval stemmata and their underlying optic neuropils degenerate. On eclosion, the adult tiger beetle possesses only a lamina (LA), medulla (ME), and lobula (LO), but lacks the lobula plate. In the adult whirligig beetle, the lower lobula plate (lLOP, pink) serving the lower aquatic eye develops normally, but the upper lobula plate is absent.

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