ON THE GENUS JONTHOCERUS. 191 



ginate , the external angles margined and rounded ; apical 

 half of the metasternum and base of the abdomen furrowed. 

 Length 5 mill. (ƒ. 



Hab. Mentawei Islands. 



The var. sumatrana Senna differs by having the eyes more 

 approximate at the base of the head, the elytra blackish 

 in the posterior half and the apex more emarginate with 

 the external angles more regularly rounded. 



7. J. foveolatus Senna. 

 Bull. Soc. Ent. Ital. XXV, 3, p. 300, tav. II, fig. 4, 1893. 



Distinctive characters : Ferruginous red , head , rostrum 

 and prothorax darker; head rounded behind the eyes, fur- 

 rowed above, front very narrow, eyes large; prothorax 

 foveolate at the base ; elytra indistinctly striate at the 

 sides, the apex angularly cut in the middle, the external 

 angles margined and regularly rounded. Length 4'/2 mill- cf • 



Hab. Sumatra. 



This species is imported in Europe with dry tobacco 

 (Grouvelle). 



8. J. P asteuri Senna. 

 Notes Leyden Museum, Vol. XX, p. 55, 1898. 



Distinctive characters: Brown-red; head rounded behind 

 the eyes, smooth above, eyes very large, nearly touching 

 the base of the head and very approximate on the front; 

 prothorax channeled; elytra indistinctly striate at the sides, 

 the apex emarginate, the external angles margined and 

 rounded ; metasternum and base of the abdomen channeled. 

 Length 6^/3 mill. cf. 



Hab. Western Java. 



9. J. ophthalmicus Pascoe. 

 Anu. and Mag. of Nat. Hist. ser. 4, Vol. X, p. 320, pi. XV, figs. 4, 4a (ƒ, 1872. 



Distinctive characters: Ferruginous red; head rounded 

 or indistinctly subangulate behind the eyes , furrowed above , 



Notes from th.e Leyden Museum, Vol. XX. 



