of Bemiptera Heteroptera from Japan. 295 



angle, and one in a line with the inner margin of each eye, 

 between the latter an irregular row of punctures ; sides broadly- 

 punctured ; margin with a few long, stoutish, piceous hairs. 

 Scutellum coarsely and irregularly punctured, the apex lanceo- 

 late and depressed. Elytra thickly and irregularly punctured, 

 the punctures finer than those on the scutellum, posterior 

 margin almost straight. Membrane pale fuscous yellow, with 

 three or four somewhat darker spots near the apex, above 

 which is an irregular transverse line widest next the anterior 

 margin. Legs pitchy black or black : tarsi reddish brown. 



Length 3^-4 lines. 



Apparently a somewhat common species, as there are several 

 examples. 



Genus Canthophoeus, Muls. 

 Canthophorus niveimarginatus. 



Blue-black, with a violet tinge, shining, thickly and deeply 

 punctured ; the lateral margins of the pronotum and the an- 

 terior margin of the elytra narrowly white. 



Head finely punctured ; anterior margin much reflexed and 

 slightly dentate in the centre. Antenna}, eyes, and rostrum 

 black. 



Thorax. — Pronotum transverse, finely punctured next the 

 anterior margin ; across the centre of the disk, but not reach- 

 ing to the sides, is a deep channel, in front of which is an 

 elevated transverse space almost without punctures ; posterior 

 portion coarsely and irregularly punctured. Scutellum at the 

 base with about three irregular rows of fine punctures ; centre 

 of the disk somewhat sparingly and irregularly punctured, 

 posterior portion rugulose punctate ; apex deflected almost at 

 right angles to the disk. Elytra : clavus with two longitudinal 

 rows of punctures next the suture, at the base interiorly rugu- 

 lose punctate : corium punctured, the punctures finer and more 

 regularly disposed than on the pronotum or scutellum, next 

 the claval suture a single longitudinal row ; anterior margin 

 white. Membrane piceous. Legs and tarsi black. 



Abdomen beneath convex, shining, very delicately punctured. 

 Connexivum black ; exterior margin of the segments narrowly 

 white. 



Length 3 lines. 



This insect bears a great resemblance to Sehirus dubius, 

 from which it may readily be distinguished by the greatly 

 reflexed anterior margin of the head, the deflected apex of 

 the scutellum, and the whiter lateral margins of the pronotum 

 and anterior margin of the elytra. 



