Chrysobothris femorata
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Chrysobothris femorata (Olivier, 1790) - (flatheaded appletree borer)
This beetle is found in North America, where it infests and breeds in the wood of various types of trees, including fruit and nut trees. Especially stressed and young trees are attacked. In maple nurseries, up to 50% of the seedlings may be lost due to C. femorata damage. The adults feed on the bark and the leaves, but cause little damage.
Females lays 50 or more eggs into cracks and wounds of the trunk of the host tree. The emerging larvae bore into the wood and feed on the cambium, sapwood and finally pupate in the heartwood. One generation last 1 or 2 years. The adults have a bullet-like shape and are around 1 cm long.
For a review see Frank et al. (2013).
