Two hitherto unnoticed generic names in the sphecoid wasps have recently come to my attention. Although the first, Dryphus, is clearly a synonym, as may also the second, Stercobata, be, nevertheless, since both will preoccupy any future usage of these names far valid generic entities, they are noted here in order that they may eventually find their way into the proper universal lists of generic names of animals.

Notes on several previously known generic or subgeneric names are appended at the end.