DICHOUONTUS HKXAGONUS. iGl 



NOTE XVII. 



TWO NEW SPECIES OF THE DYNASTID GENUS 

 DICHODONTUS, BÜRM. 



DESCRIBED BY 



C. RIÏSEMA Cz. 



1. Dichodontus hexagonus , n. sp. (^. 



Judging from the description this species must be allied 

 to Dichodontus coronatus Burm. ') from the coast of Ma- 

 labar , by the shape of its prothorax which resembles more 

 or less that of Coelosis hiloha Fabr. in outline , but may 

 readily be distinguished by the different punctuation. 



Length 31 mm., width of the shoulders of the elytra 

 17 mm. — Uppersurface , tibiae and tarsi dark pitchy- 

 brown approaching to black; undersurface, club of the 

 antennae , palpi , coxae and femora reddish brown ; the 

 pubescence of the sternum pale ferruginous, that of the 

 undersurface of the head , sides of prosternum , legs and 

 abdomen dark brown-red. 



The head and the rather slender , slightly curved cephalic 

 horn coarsely and transversely sculptured , the latter strongly 

 punctured towards the tip and nearly smooth on the hind 

 surface; the front margin of the clypeus narrower than in 

 Dichodontus Croesus Fabr. {=^ clijpeatus de Haan in Mus. 



1) Burmeister, Hatidbnck der Entomolxxjle. Bd. V (1847). S. 318, n". 1. 

 Notes from the Leydon IVtiisouin, Vol. IV. 



