Collection of Hemiptera from Japan. 315 



and somewhat uniform in size. Legs ashy-grey. Tarsi, 

 apex of the terminal joint brownish. Abdomen under- 

 neath yellow. 



Length 1^ line. 



In the form and development of the overlapped sides 

 of the pronotum this insect resembles the Monanthia 

 monstrosa of my former paper, and belongs to the same 

 group. In his Kio. Hem. (1860), Dr. Stal described five 

 species with nearly identical characters to those of M. 

 monstrosa and the insect now described, which he referred 

 to the above genus; but subsequently, in his 'Enumeratio 

 Hemipterorum,' iii., 127 (1873), he transferred them to 

 that of Lejjtodicti/a, a name which he created for their 

 reception. As I do not possess an actual type of this 

 genus, and also because the species are all from Kio, 

 I am not perfectly certain that my insects belong here ; 

 and so I have given his name with a doubt. I only 

 possess a single example. 



Family Nabid^. 



Genus Dacnister.* 



Head viewed from above, exclusive of the eyes, elongate, 

 somewhat hexagonal, the part in front of the eyes longer 

 than from the anterior margin of the latter to the base. 

 Eyes moderate. Antenme, 1st joint shortest, reaching to 

 about one-half its length before the anterior margin of 

 the head ; 2nd clavate, about one-half longer than the 

 1st ; 3rd longest ; 4th equal to the 2nd. Rostrum long ; 

 1st joint stout, about as broad as long; 2nd elongate, at 

 least 2^ times as long as the 1st ; 3rd equal to the 2nd. 

 Thorax. — Pronotum somewhat long, flatfish convex lon- 

 gitudinally, as long as or slightly longer than the breadth 

 measured on the posterior margin ; lateral margins 

 almost straight, gradually widening to the posterior 

 angles ; anterior margin straight ; posterior margin 

 very slightly concave. Eljjtra. — Membrane (apparently) 

 without cell-hooks. Legs. — Thighs, 1st pah" thick, upper 

 margin convex, lower margin with a stout tooth in the 

 middle ; 2nd and 3rd pairs simple. Tibice, 1st pair 

 considerably dilated before the apex, then tapering 

 towards the latter ; extremities of the dilation somewhat 

 flat on the sides, and produced into a short tooth ; inner 

 margin concave, with two rows of minute serrations ; 



* A«Jtji/n7T-/?p, a stinger, a biter. 

 TBANS. ENT. SOC. 1880. — PART IV. (DEC.) 2 K 



