the Tenebrioiiulic qt Jaj>an. 47D 



with the thorax coarsely ami tlcnsely jjunctured, and there is 

 a male in my collection in which the thorax is nearly smooth. 

 The males have an emargination in the mitUUe of the j)OSte- 

 rior edge of the fifth abdominal segment, the forehead, when 

 not abraded, is pubescent, and the eyes ai)))roach nearer to 

 each other than in the female. The elytral striai vary in 

 either sex ; in some examples they are dee))ly impressed 

 and the interstices are convex, in others they arc lightly im- 

 pressed and the interstices are Hat. 



This s|)ecies is extremely abundant throughout Japan at 

 low and intermediate elevations between June and September. 

 At Nara on the 13th June the pupse were more abundant 

 than the imagoes, but at the end of the month I failed to find 

 a pu|)a. 



JJab. x\.ll the islands. 



Plesiophthalmus spectahilis. 



riesiophthabmts xpcrtahilh, Har. Abhandl. Ver. l^rem. iv. 187o, p. 293; 



Deutsch. ent. Zeit. xxii. 1878, p. 79. 

 PUsiuphthalmus ohesus, Mars. 1876. 



This is a very distinct species ; the last segment of the 

 abdomen is not emarginate in the male. Harold published 

 his species before ^larscul's paper went to the press. 



Hah. Nagasaki, Kobe, and Xikko, but not very common. 

 I have taken it also at Kiukiang in China. 



Plesiophthalmus Icevicollis, Har. 

 PlesiojyJithahnus laricollis, liar. Deutsch. ent. Zeit. xxii. 1878, p. 79. 



This species, like the last, has no abdominal emargination 

 in the male ; the legs are often of a bright red colour. 



JJab. Nikko, Kioto, Nara, and Kashiwagi. Abundant : 

 found on old railings and ou the rafters of old houses at 

 night. 



Ainu, gen. nov. 



The characters of this genus are like those of Strongylium : 

 the antennal orbits are well elevated, but the antennae are 

 very long and slender ; the anterior and intermediate tarsi 

 have four joints dilated and padded on the under surface; 

 the prosternum is continued nearly on the same plane behind 

 the coxffi ; and the mesosternuni has a median carina which 

 corresponds to the level of the prosternal keel. These cha- 

 racters also separate it from Camaria, from which it differs 

 also in having the base of the first abdominal segment pointed 

 between the coxa3. 



