New taxa and changes in nomenclature are provided in the genera Acmaeodera Eschscholtz, Chrysobothris Eschscholtz, and Agrilus Curtis. Acmaeodera mariposa Horn is discussed as a polytypic species, with A. dohrni Horn given subspecific status therein. Acmaeodera plagiaticauda Horn is treated in detail, with A. verecunda Barr and A. postica Fall considered as synonyms, the latter synonymy necessitating erection of A. rubrocuprea, new species. Also described is A. constrictinotum, new species. Agrilus parvus Saunders and C. purpureovittata become polytypic with the description of A. p. californicus, new subspecies and C. p. cercocarpi, new subspecies. These taxa are discussed in detail, the latter requiring modification of the most current key to the genus in North America.

Publication funded in part by the Patricia Vaurie bequest.