An appreciation is given of the dragonfly photographic work of O.R. STRUB (born: Dec. 25, 1905, Basel, Switzerland; film producer in Thun, Switzerland), and bibliographies are appended of his odonatological publications (1976-1980) and of the press- and other reviews of the exhibits of his dragonfly photographs (1976-1979). Am 25. Dezember 1980 hat OTTO ROBERT STRUB in Thun, Schweiz, seinen 75. Geburtstag gefeiert.