The following described species are recognized as occurring within the boundaries of the United States and Canada: Cryptorhopalum triste LeConte, C. rubidum Beal, C. uteanum Casey, C. apicale (Mannerheim), C. fusculum LeConte, C. obesulum Casey (= C. dorcatomoides Casey, NEW SYNONYM), C. floridanum Casey, C. ruficorne LeConte, C. poorei Beal, C. haemorrhoidale LeConte, C. pruddeni Casey, C. reversum Casey, C. balteatum LeConte, C. filitarse Casey, and C. haplotes Beal. The following new species are described: C. vernale from Arizona, C. focale from Florida, C. woolfi from Arizona, C. aspilon from Arizona, C sapindi from Arizona, and C distichia from Arizona. Redescriptions with figures of male terminalia are provided for those species which have not been the subject of a recent revision. Lectotype designations are given where necessary. A key to species of adult males is provided and a key to adult females of the Quadripunctatum group. Known synonymies are listed. Flower hosts, geographic distributions, and other biological information are given insofar as known. |