jewel scarab noun1 •A scarab of the genus Chrysina: brightly coloured, often metallic iridescent species of ruteline beetles found from the southwestern edge of the United States to Central America.Jewel scarab (Chrysina chrysiagarea), Costa Rica / A singular chrome sheen adorns both this jewel scarab and the silver satyr butterfly, making them a perfectly monochromatic pairing. — 2008 formsjewel scarabs