308 Mr. H. W. Bates on the 



XLI. — On the Longicorn Coleoptera of Japan. 

 By H. W. Bates, F.L.S. 



[Continued from p. 201.] 

 Family LamiidaB. 



Echthistatus gibber, n. sp. 



E. spinoso, Pascoe (Journ. Ent. pi. 17. f. 8), forma similis. Brevis, 

 fuscus, tomento vel squamis fulvo-terreis dense vestitus ; capite 

 grosse, sparsim punctato ; thorace subquadrato, medio paulo dila- 

 tato ibique utrinque spina elongata valida armato, supra multi- 

 tuberoso ; elytris ad trientem apicalem utrinque fortiter gibbosis, 

 inter gibber et humerum flexuoso-carinatis, apice utrinque pro- 

 ductis, mucronatis, supra passim inaequaliter granulatis ; antennis 

 3 corpore plusquam duplo longioribus, scapo scabroso, articulo 

 secundo apice incrassato. Long. 6-8 lin. c? 2 • 



Maiyasan and Kawatchi, in September. 



I place this extraordinary Longicorn, without hesitation, in 

 the genus Echthistatus, although it differs in armature from the 

 type species (E. spinosus), and inhabits a far distant country, 

 if the locality " Mexico " for E. spinosus be a correct one. In 

 the form of the head (broad front, distant antenna?, and concave 

 vertex), antenna?, legs, and general figure of the body, there is 

 great similarity between the present insect and Pascoe's figure. 

 The elytra, however, are very differently tuberculated ; on the 

 disk of each, at rather more than two-thirds the length, is a 

 transverse, slightly elevated ridge, between which and the apex 

 is a straight declivity ; from the outer end of the ridge runs an 

 obtuse carina, dipping greatly before it reaches the shoulder ; 

 and the sides of the elytra from the carina are vertical. The 

 whole surface of the elytra is studded with granulations, larger 

 and smaller. The species varies greatly in many points, espe- 

 cially in the size and number of the granulations and the iength 

 of the apical fork -like mucrones. 



The species belongs in all its characters to Lacordaire's 

 Groupe Dorcadides, and is closely allied to Dorcadida. 



Monohammus subfasciatus, n. sp. 



M. oblongo-subcylindricus, fuscus, fulvo maculatim tomentosus; 

 elytris medio fascia indefinita, abbreviata, cinerea ; scutello fulvo- 

 tomentoso. Long. 6-8| lin. 3 $ . 



Nagasaki ; many examples. 



A typical Monohammus, closely allied to M. Heinrothii, 

 Cederj., &c. Smaller, and elytra much less elongated than in 

 M. sartor ; head and thorax relatively narrower ; antenniferous 

 tubercles obtuse ; thoracic spine very, small. The thorax is 



