In later life he went to stay with Oberthur in France. The loss of his friend G.R. Crotch, Librarian to the University of Cambridge, was a great blow to him. They had been closely associated in entomological work, and had made several excursions together – to the New Forest, to Rannoch, and to Spain. Sharp often spoke of the primitive conditions in years gone by to be found in the New Forest and in Scotland, and told amusing stories of their difficulties in the way of procuring food and lodgings. With another friend, Bishop, he visited Sherwood Forest, and the last letter he wrote during his illness was to this friend, who died only so recently as 26 August last. In Brockenhurst Sharp, worked assiduously with one of his daughters (who later married Frederick Arthur Godfrey Muir) in his entomological laboratory, elucidating the life-story or the anatomy of numerous insects, chiefly Coleoptera. His beetle collection went to his daughter (Mrs Muir). Sharp's extensive collection, including several thousand type specimens, is housed at the Natural History Museum, London. Principal publications 1869 A revision of the British species of Homalota. Transactions of the Entomological Society of London, 1869(2–3), 91–272. 1874 The Staphylinidae of Japan. Transactions of the Entomological Society of London 1874: 1–103. See also 1888 1876 Contributions to an insect fauna of the Amazon Valley. Transactions of the Entomological Society of London 1876: 27–424. 1880–1882 Monograph on Aquatic Carnivorous Coleoptera or Dytiscidae Scientific Transactions of the Royal Dublin Society 2: 1–800. 1888 The Staphylinidae of Japan. The Annals and Magazine of Natural History, (6)2,. 277–477. 1876 1882– 1886 (1882–1886) Staphylinidae. pp. 145–824. In: 1882–1887. Biologia Centrali-Americana. Insecta. Coleoptera. 1(2). London: Taylor & Francis, xvi+824 pp., 19 plates. 1887 Pselaphidae. pp. 1–46. In: 1887–1905. Biologia Centrali-Americana. Insecta. Coleoptera. 2(1). London: Taylor & Francis, xii+717 pp., 19 plates. 1891 Synteliidae. In: Biologia Centrali-Americana. Coleoptera, Insecta. Coleoptera. 2(1). London: Taylor & Francis. 438–440. 1896 – 1913 With Robert Cyril Layton Perkins and Alfred Newton Fauna Hawaiiensis. 1899 Some points in the classification of the Insecta Hexapoda, Proc. 4th Int. Congr. Zool., pp. 246–249 1912 with Frederick Arthur Godfrey Muir. The comparative anatomy of the male genital tube in Coleoptera. Transactions of the Entomological Society of London. III: 477-462, 36pls. p. 523, pl. 60, figs. 107–109, male genitalia. Sharp also contributed to two catalogues of British Coleoptera (with Oliver Erichson Janson, in 1871, and with