Osmond Charles Ollenbach (1869-6 July 1935) was a surveyor with the

Survey of India The Survey of India is India's central engineering agency in charge of Cartography, mapping and surveying.

who was also a keen amateur entomologist and naturalist. He travelled across India and Burma as a surveyor with the

Great Trigonometrical Survey The Great Trigonometrical Survey was a project that aimed to survey the entire Indian subcontinent with scientific precision. It was begun in 1802 by the British infantry officer William Lambton, under the auspices of the East India Company.Gil ...

and made collections of insects with nearly 17000 insect specimens some of which are now in the

Natural History Museum, London The Natural History Museum in London is a museum that exhibits a vast range of specimens from various segments of natural history. It is one of three major museums on Exhibition Road in South Kensington, the others being the Science Museum an ...

, and at the Forest Research Institute, Dehra Dun, where he worked after retirement as an entomologist. Ollenbach was born in India and had taken an interest in butterflies from his childhood days in Mussoorie. He retired from the Survey of India in 1922 as a Class I officer. * Ollenbach, O. C. "Notes on wild dogs in India and Burma." Jour. Darjeel. Nat. Hist. Soc 4 (1930): 83-86. * Ollenbach, O. C. "Butterfly collection grounds at Mussoorie (UP)." Journal of the Bombay Natural History Society 34.3 (1930): 836-840. * Ollenbach, O. C. "New species of Cicadidae and Fulgoridae from India and Burma.(Hemip.)." Indian Forest Records 13 (1929): 271-282. ''Bruchophagus ollenbachi'' Mani and Kaul, 1974 is named from a specimen from his collections.

References

{{reflist Surveyors Naturalists 1869 births 1935 deaths