100 . Mr. David Sharp on the 



manner along the middle. I'he female may be distin- 

 guished from the same sex of P. arinatiis by the narrower 

 form, the absence of a denuded stripe on the side of the 

 wing-case, while in general appearance it is intermediate 

 between the species named and P. lo)igicorms. 

 Nikko and Kashiwagi, in June. 



5. Phyllobius rotundicolUs. 



P. rohindicollis, Roelofs, Ann. Soc. ent. Belgique, xvi., 

 p. 167. 



This remarkable species is distinguished by the pecu- 

 liar ashy or cinereous clothing of the upper surface, which 

 has a more or less indistinct metalhc shimmer, but is 

 entirely absent from a broad stripe on the side of the 

 wing-case : the clothing is more like hair than scales. 

 The eyes are very convex^ and the head above them is 

 much ssvoUen. There is great difference between the 

 sexes. The apical ventral segment of the male is 

 broadly and deeply impressed, and the segments in front 

 of it are also more or less impressed, as well as the hind 

 part of the metasternum. The teeth on the femora are 

 elongate and spiniform. 



P. rotundicollis is apparently a rare insect, and has 

 only been met with at Nagasaki. It occurs in early 

 spring: Aprill2th, 1881. 



6. Phyllobius nigritus, n. sp. 



Nigricans, hand squamosus, pube tenuissima erecta parce 

 vestitus, pedibus antennisque rufo-obscuris, his tenuibus, per- 

 elongatis. Long. 7 mm. 



This species differs from the other Japanese Phyllobii 

 hitherto brought to light by the absence of scales or 

 coloured hairs, resembling in this respect the European 

 P. ohlongus, to which, however, it is, in other respects, 

 but little allied. The antennae are as slender as those of 

 any species I have seen of the genus, and are also very 

 long; the club is particularly slender, and is acuminate. 

 Head coarsely rugose, inflated above the eyes, depressed 

 between these, which are very convex. Thorax very 

 densely rugose-punctate, opaque. Elytra with very 

 regular series of punctures, the interstices slightly con- 



