1911 Encyclopædia Britannica/Ground-pearl
GROUND-PEARL, the glassy secretion forming the pupacase of coccid insects of the genus Margarodes, belonging to the homopterous division of the Hemiptera.
See also Margarodes on Wikipedia; and our 1911 Encyclopædia Britannica disclaimer.
GROUND-PEARL, the glassy secretion forming the pupacase of coccid insects of the genus Margarodes, belonging to the homopterous division of the Hemiptera.