Serica vespertina is a species of scarab beetle in the family Scarabaeidae. It is found in North America, where it has been recorded from the United States.
Description Adults reach a length of about 8.5 mm. The colour is uniformly light brown (amber brown to argus brown). The surface is bare, polished and shining.
Subspecies These two subspecies belong to the species Serica vespertina: Serica vespertina vespertina (New Hampshire to Michigan, south to Florida and Alabama, Colorado, Indiana, Maryland, Wisconsin) Serica vespertina accola Dawson, 1921 (Alabama, Iowa, Mississippi, Nebraska, Texas)
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