426 Mr. J. Scott on new Genera and Species 



LTV. — On a Collection of Hemiptera Heteroptera from Japan. 

 Descriptions of various new Genera and Species. By 

 John Scott. 



[Concluded from p. 365.] 



Family Lygseidae. 

 Genus Akocatus, Spin. 



Arocatus melanostoma. 



Red, clothed with very fine depressed yellowish hairs. 



Head red : crown with a large round black spot ; face, apex 

 of the side and central lobes black. Antennce and antennifer- 

 ous tubercle black. Eyes black, sometimes reddish. Rostrum 

 black. 



Thorax. — Pronotum red, deeply punctured, and with a broad 

 A -shaped black patch not reaching to the anterior or posterior 

 margin. Scutellum black, with a strongly raised red central 

 keel. Elytra red, unpunctured, somewhat shagreened : clavus 

 black, base and the margin at the apex next the scutellum 

 red : corium black ; anterior and posterior margins bi-oadly 

 red, apex of the latter narrowly black. Membrane piceous. 

 Sternum black, deeply punctured, clothed with very fine, de- 

 pressed, yellowish hairs ; orifice of the odoriferous sac red. 

 Legs black. 



Abdomen above red ; beneath red, with a broad black streak 

 along the sides ; last segment, as also the genital segments, 

 black. Connexivum red. 



Length 3-3^ lines. 



Genus Ischnodemus, Fieb. 



Ischnodem us spinicaput. 



Head and pronotum dull black, thickly punctured, the former 

 with two spines at the base of the face, longer in the male 

 than the female ; an acute tubercle in front of each eye, and 

 (in the male) the side lobes of the face testaceous, produced in 

 front, flattened, separate. Elytra pale testaceous. 



Head black, thickly punctured : crown convex : face at the 

 base with two long stout spines, and in front of each eye an 

 acute tubercle; side lobes testaceous, produced in front to 

 about in a line with the basal fourth of the second joint of the 

 antenna:. Antenna black, stout, thickly punctured. Eyes 

 purplish. Ocelli deep red. 



Thorax. — Pronotum dull black, thickly punctured ; anterior 

 margin frequently brown ; posterior margin and hinder angles 



