COLEOPTERA FROM RIOUW. 213 NOTE XXV. ON A PEW COLEOPTERA FROM THE ISLAND OF RIOUW. BY C. RITSEMA Cz. In two bottles with Reptiles and Fishes from the island of Riouw (lying south of Malacca) sent over by Mr. A. H. G. Blokzeyl, formerly Resident of the Riouw Archipe-lago , and kindly presented by him to the Leyden Museum, were also a few Arthropods. Of these , eleven species be-long to the Coleoptera , and as there is , as far as I know , nothing known of the Coleopterous fauna of this group of islands, I thought it not without interest to give a list of these species , all belonging to the families Scarabaeidae (4 spec.) and Cerambycidae (7 spec). Scafnbaeidae. 1. Ancylonycha {Haplidia) hidentata Burra. One example. — The specimen described by Burmeister (Handbuch , IV, 2; p. 316, n°. 14) is indicated as origi-nating from Java. In the Leyden Museum were already specimens from Banka and West Sumatra. 2. Anomala (Euchlora) viridis Fabr. One example. — A common Chinese species (Burm., Handb. IV, 1 ; p. 275 , n°. 57) which , according to Hope (Ann. of Nat. Hist. IV. p. 345, n°. 1), is also found at Singapore , Assam , in Bengal and in the island of Ceylon. IS^otes from tlie Leyden IMuseum , Vol. IX..
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