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Species Page - Chrysobothris femorata
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scientific name    Chrysobothris femorata    

common name     Flatheaded Appletree Borer

Hardwood forests.

June, July and August.

The most striking feature when looking at theses beetles is the vivid green front of the head. A faint chevron shaped callosity is on the centre of the frons. The shape of the emargination on the clypeus is unique among Alberta Chrysobothris species. Ventrally the body is black with a coppery to brassy lustre. Each elytron has 4 longitudinal costae interrupted by two shallow foveae.

life history
Similar to other Chrysobothris species, in that adults oviposit into cracks and crevices on the bark. larvae hatch out, boring into the bark, feeding on the phloem and outer sapwood. Larvae over-winter in pupal cells constructed in the outer wood, pupating in the following spring and emerging as adults in early summer. In southern climates the life cycle takes one year. Bright (1987) suggests a longer development time in Canada.


diet info
Hosts include a wide variety of deciduous trees, including maple, poplar and willow (Fisher 1942, Bright 1987). In Alberta the adults have been associated with aspen.

These beetles are found from British Columbia to New Brunswick and south to Mexico (Fisher 1942, Bright 1987).

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Related Species Info
Display Hierarchy
References (2)
Specimen Info
There are 22 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (22)


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