Xerasia is a genus of fruitworm beetles in the family Byturidae. There are four described species in Xerasia. They are native to California and found in a variety of environments such as wet and dry areas. C.A. Springer & M.A. Goodrich (1994) A Revision of the Subfamily Platydascillinae (Coleoptera: Byturidae) from Southeast Asia, with Descriptions of Two New Genera and Three New Species. The Coleopterists Bulletin 48: 60-78
Species Xerasia grisescens (Jayne, 1882) Xerasia meschniggi (Reitter, 1905) Xerasia punica Goodrich & Springer, 1988 Xerasia variegata Lewis, 1895
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