As I have indicated in various publications on the Dacini, I cannot agree with the generic concepts which have been followed by most of the workers on this group. I prefer not to base genera upon secondary sexual characters, unless accompanied by ample supporting characters, preferably common to both sexes. I also prefer not to base genera upon single chaetotaxic characters, i. e., the presence or absence of certain bristles, in varying combinations, unless accompanied by supporting characters. In my detailed study of this group such variations and intergradations have been seen in the chaetotaxy that it is felt that these are not always reliable criteria.