Career
O'Mahoney worked in the National Museum, Dublin. He was a Technical Assistant working with Albert Russell Nichols, James Nathaniel Halbert and Arthur Wilson Stelfox. O’Mahoney wrote over fifty articles on Irish Coleoptera between 1924 and 1951 (listed in Ryan et al.
(1984) pp. 80–83.) Most appeared in the Entomologist's Monthly Magazine and many introduced new national and county records.
