chrysoberyl (krisoberil)

[L. chrysobe metallic color. The larvæ are elongate, cylindrical, legle grubs of a whitish color, which tunnel under the bark of trees, and are easily recognized by the enormous size of the first thoracic joint, which is rounded at the sides and flattened above and beneath. Two very abundant North American species are C. dentipes, which infests pine trees, and C. femorata, which affects various deciduous trees, and by preference orchard-trees. Its larva is the well-known flat-headed apple-tree borer of orchardists. Chrysochlora (kris-ō-klora), n. [NL. (Latreille, 1825),