Arthur Wilson Stelfox (1883-1972) was born in Belfast. He was known internationally for his work on Hymenoptera, on animal bones from caves and on non-marine Mollusca. His work on the genus Pisidium is of lasting importance. Stelfox was elected a Member of the Royal Irish Academy in 1912. He worked on the Clare Island Survey which took place between 1909 and 1911, the most ambitious natural history project undertaken in Ireland and the first of its kind in the world.
Architect and naturalist