Conservation Status
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Uncommon.
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Cyclicity
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July.
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Distribution
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This is primarily an eastern and southern species just getting into southern Alberta. In Canada the species is found east to Nova Scotia, and south in the United States to Alabama and Georgia (Bright 1987, Nelson 1975).
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General Description
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Similar in appearance to beetles of D. hesperoborealis and D. callosa. The channel on the pronotum tends to be a bit shallower and the punctures on the pronotum tend to be less course. The adults are similar to D. caudata but differ in the shape of the pronotum, being widest at the middle and the elytral striae are usually distinctly visible.
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Habitat
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Hardwood stands.
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Life Cycle
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These beetles are reported to feed in the heart wood of a variety of dead trees (Knull 1922). The Alberta specimen was associated with birch.
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Trophic Strategy
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Reported to feed on a variety of hardwoods, including maple, birch, cherry (Prunus spp.) and elm (Bright 1987).
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Dicerca divaricata
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Dicerca divaricata: Brief Summary
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Dicerca divaricata, also known as the flatheaded hardwood borer, is a species of black coloured beetle from subfamily Chrysochroinae found in North America. It is 15–22 millimetres (0.59–0.87 in) long. The species is known for feeding on various maples such as Acer saccharum and Acer rubrum as well as Ulmus americana and Cercis species. The species fly in May and June.
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