Career
Most of his work was on the fauna of Egypt. His collection is shared between the natural history museum in Tutzing de:Tutzing and the National Museum of Natural History in Washington District of Columbia (Smithsonian). His principal works are
The Coleoptera of Egypt.
Member
Society Entomological Egypt. 5:38.(1976)
with Hermann Preisner A review of the Hemiptera Heteroptera known to us from Egypt. Bulletin de la Société Fouad Ier d’Entomologie 37:1-119.(1953).