Career
Of Catalan origin, he moved to Australia in the 1950s and became an Australian citizen. From 1960 he became a full-time writer and photographer on natural history. From 1970 he collected insects for the Australian National Insect Collection.
He has been honoured in the name of the Harry Frauca Walkway, a 200 m walkway at Baldwin Swamp, Bundaberg, as well as the Harry Frauca Walking Track and Harry Frauca Information Panel at the Mount Walsh National Park, Biggenden.