Dicerca hornii is a species of metallic wood-boring beetle in the family Buprestidae. It is found in North America.
Subspecies There are two valid subspecies of Dicerca hornii: Dicerca hornii hornii Crotch, 1873 Dicerca hornii nelsoni Beer, 1974
Another subspecies was described as Dicerca hornii ampliata Casey, 1909 (p.53 as "horni ampliata"), but later as a junior synonym of Dicerca hornii hornii Crotch, 1873 by Leng, 1920 (p180), per Nelson et al. 2008 (p.74).
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