Ochteridae from western and southern AfricaPublished in Occasional Papers of The California Academy of Sciences, in 1973, in volume 106, pages 1-9A revision of the genus Ancylandrena (Hymenoptera: Andrenidae)Published in Occasional Papers of The California Academy of Sciences, in 1973, in volume 109, pages 1-36
A revision of the genus Ancylandrena (Hymenoptera: Andrenidae)Published in Occasional Papers of The California Academy of Sciences, in 1973, in volume 109, pages 1-36