Longicorn Coleoptera of Japan. 309 



cylindrical, and appears more elongated than in M. sartor ; the 

 punctuation is much finer and shallower. The elytra are 

 singly rounded at the tip, subconfluent-punctured throughout, 

 and thickly sprinkled with spots of tawny pubescence ; in all 

 examples there is a transverse spot a little behind the middle, 

 not reaching the suture or side, of grey pubescence or tomentum ; 

 it is ill defined on its edges, and is spotted with darker colour. 

 The antennae in the male are three times the length of the 

 body ; robust towards the base, slender towards the tip, and 

 wholly pitchy black ; scape densely and finely rugulose- 

 punctate. 



Monohammus tesserula, White. 

 Monoha?nmm tesserula, White, Proc. Zool. Soc. 1858, p. 408. 



Hiogo ; many examples. Also Hong-Kong, Amoy, and 

 Northern China. 



A true Monohammus, allied to the North-American M. titil- 

 lator, F. 



Monohammus luxuriosus, n. sp. 

 M. robustus, modice convexus, postice ( <S ) angustatus, seneo-fuscus, 



tomento subtili ochraceo-fusco plagiatim vestitus ; elytris fasciis 



duabus, rectis, vagis, obscurioribus. Long. 13-16 lin. 



Several examples. Found also in Northern China. 



Differs in many points from the typical Monohammi, with 

 which it agrees in the moderately narrow, simple mesosternal 

 process, rounded apex of elytra, &c. The antennal scape 

 varies in form in different individuals — in one male before me 

 being clavate, almost pyriform, and in others elongate obco- 

 nical, as usual in this group ; the cicatrice also is " open " in 

 the clavate form, but " closed " and semicircular in other spe- 

 cimens ; the joints 3-10 are a little produced and acute at their 

 inner apical angles. The head and thorax above are rather 

 thickly studded with deep punctures, without trace of the rugse 

 of the typical species. The elytra are finely granulate, punc- 

 tate towards the base, and very finely punctulate towards the 

 apex, with traces of two raised lines, limited by a row of punc- 

 tures, on each. The antennas are scarcely twice the length of 

 the body in the male, and not much abbreviated in the female ; 

 they are clothed generally with very fine grey pubescence, the 

 tips of the joints darker. The anterior legs are very mode- 

 rately elongated in the male. 



Mr. Lewis found the species in Mr. Pascoe's collection 

 standing under the name which I have adopted. 



Monohammus fraudator, n. sp. 

 M. fistulatori similis, at subtilius punctatus, etc. Fuscus, tomento 

 subsericeo subtili ocbreo-fulvo dense vestitus ; capitis vertice im- 



