214 COLEOPTERA FROM RIOUW. 



In the Leyden Museum tins species was represented only 

 by specimens from China. 



3. Dipelicus lohatus Lausb. (Ann. Soc. Ent. Beige. XXII. 

 C. R. p. CLIII, n°. 23). 



One example, cf. — The typical specimen has been 

 described (/. c.) from Amboyna , and as these different 

 habitats could leave some doubts as to the correctness of 

 my identification , Mr. van Lansberge most courteously sent 

 me two of his specimens for comparison. The result of 

 my examination is that the Riouw specimen undoubtedly 

 belongs to the same species as those from Amboyna. 



Perhaps future investigations will show that Dipelicus 

 lohatus Lansb. (the female sex of which is not yet known) 

 is really the cT of Dipelicus Cantori Hope , the type of the 

 genus and described from the collections made by Dr. 

 Cantor in Chusan. At least, in 1867 Mr. Chas. 0. Water- 

 house described (Trans. Ent. Soc. London. 3rd ser. vol. 

 V. p. 532 ; pi. 27, fig. 2 and 3) a male Dipelicus from 

 Java as the male of Cantori, and this description corres- 

 ponds exactly with the Ambon and Riouw insect. But as , 

 still yet, we do not know male specimens of Dipelicus 

 Cantori from Chusan (China), I am not convinced that the 

 specimens from Java , examined by Mr. Waterhouse , really 

 belong to this species. 



In the mentioned paper Mr. Waterhouse describes also 

 a male specimen of Dipelicus Geryon Fabr. said to be from 

 Java. — Neither Geryon nor Cantori are represented in 

 the Leyden Museum , but a few other species from the Ma- 

 lay Archipelago and New Holland , reckoned , chiefly on 

 account of the shape of the apical joint of the labial palpi, 

 to the genus Dipelicus are present. As however these species 

 (as well as an already described one , viz. : Dipelicus nasutus 

 Bates '), from Duke-of-York island) differ from the ty- 

 pical ones by the reflexed, more or less bidentate front- 



1) Proc. Zool. Soc. London. 1877. p. 153; pi. 24, üg. 4. 



Notes from tlie Leyden ^luseum , Vol. IX. 



