26 Mr. D. Sharp's descriptioiis of some iieto species, §'c. 



joint of the fimlciihis not longer than the following ones ; 

 the eyes are contiguous with the neck ; the punctures of 

 the elytra are very distinct and regular, the intei'stices 

 being narrow and without rugulosities ; the 3rd joint of 

 the tarsi is rather small and its lobes but little developed. 

 I have seen three individuals which, I expect, are all of 

 the male sex ; they have the rostrum minutely punctate, 

 almost simply cylindrical, moderately stout, rather more 

 than half as long as the thorax, and the antenni» inserted 

 just before the middle. 



Pentarthrum Blackburni, n. sp. Angustulum hand 

 depressum, subcylindricum, minus elongatum, rufo- 

 j)iceum, nitidum, fortiter pimctatum ; prothorace conico- 

 cylindrico, pone marginem anteriorem levissime constricto, 

 crebre fortiter, profundeque punctato; elytris fere brevibus, 

 vix striatis, sed seriatim sat fortiter pimctatis ; interstitiis 

 sparsim transverse rugulosis. Long. 2| mm. 



This species is shorter than P. ohscurum, and has the 

 elytra differently sculptured ; and the 3rd joint of the 

 tarsi is still smaller, being only slightly different fi'om the 

 2nd. The only individual I have seen I suspect to be a 

 male ; it has the rostrum much as in P. obscurum, but 

 not quite so finely punctured. 



