After examining the European Ammoconia caecimacula (in which the ♂ anntennæ are dentate and furnished with pencilled setae or hair; the form stout; the tibiae, of the middle and hind legs only, spinose; the thorax and abdomen with slight dorsal tuftings), I find that my species are not congeneric, and I accordingly refer them to this genus named in memory of a Brooklyn Entomologist, Harvey J. Rich, who died while yet young, and whom I knew “before the war.” The type of Richia is Chortalis and its probable dimorphic form Aratrix, though we do not know quite surely whether the two are so related or not; they occur over the West and Southwest, to Texas.