SUMATRAN COLEOPTERA. 29 NOTE X. CONTRIBUTIONS TOWARDS THE KNOWLEDGE OF THE COLEOPTEROUS EAUNA OF WEST SUMATRA. ') C. RITSEMA Cz. A second, third and fourth consignment of insects , sent by Mr. J. D. Pasteur to the Leyden Museum, have recently ar-rived. Besides some Hemiptera, Hymenoptera, Diptera and Orthoptera, all captured in the neighbourhood of Padang Sidempoean (resid. Tapanoeli: North West Sumatra), they contained a more considerable number of Coleoptera from the same locality. ^) These latter belong to the following species several of which were not yet represented in the Leyden Museum, whereas some others certainly will prove to be new to science. Those species which , according to the insect-collection of our Museum , occur also in East Sumatra are indicated by an asterisk , a way of acting which I thought of interest for the sake of our knowledge of the geographical distribution of the Coleoptera in the island of Sumatra, Moreover those species which are des-cribed at a date posterior to the Munich Catalogue are followed up by their citation. 1) See also: Notes from the Leyden Museum. 1889. p. 241. 2) The third and fourth consignment contained moreover a beautiful series of Lepidoptera, all captured by Mr. Pasteur himself at Padang Sidempoean (N. \V. Sumatra), at Assahan (N. E. Sumatra), and on his way across the country from one place to the other. In his accompanying letter Mr. Pasteur tells me that none of the specimens are collected in places higher than 100 M. above the level of the sea. Later on I have the intention to give a full list of the collected species. Notes from the Leyden ]Museuiii , Vol. JCII.