jewel bugs
... that the iridescent metallic hues of some jewel bugs (Scutelleridae) are caused by structural colors instead of pigmentation?
... that the <a class="mw-redirect" href="./Iridescent" id="mwEhA" rel="mw:WikiLink" title="Iridescent">iridescent</a> metallic hues of some <b id="mwEhE"><a href="./Scutelleridae" id="mwEhI" rel="mw:WikiLink" title="Scutelleridae">jewel bugs</a></b> (Scutelleridae) <i id="mwEhM">(example pictured)</i> are caused by <a href="./Color#Structural_color" id="mwEhQ" rel="mw:WikiLink" title="Color">structural colors</a> instead of pigmentation?