Serica alleni is a species of beetle of the family Scarabaeidae.BioLib It is found in the United States (California).
Description Adults reach a length of about 8–9.5 mm. The colour is piceous to piceo-castaneous. The surface is moderately shining, and mostly glabrous above, except for a few short elytral hairs.
Life history Recorded host plants for the adults are the foliage of Quercus kelloggi, as well as Arctostaphylos pringlei and the needles of Abies concolor.
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