THE COLTDIID^ OF JAPAN. 75 



Leptogltphus, nov. gen. 



Antennae 9-articulatse, clava maximaj inarticulata ; tibiae extus angulatee ; 

 coxae posteriores valde distantes. 



This genus, allied to JBothrideres, is distinguisiaed by the pecu- 

 liar structure of its antennae ; their basal joint is short and very 

 thick, but quite exposed, the second joint very short, transverse, 

 angulated above, third joint slender, 4-8 small; terminal joint 

 very large, subtriangular, with the apex of the triangle articu- 

 lated to the eighth joint, and the free base of the triangle together 

 with the angles somewhat curved, quite as broad as the length 

 of the joint. The eyes are large, convex, finely granulate ; the 

 palpi small and slender; the front, coxse moderately distant, 

 the prosternum between them very distinctly divided. The 

 metasternum is very elongate, the first ventral segment three times 

 as long as the second ; the front tibiae are very strongly angulate 

 at the apex externally, the middle more slightly so, the hinder 

 almost simple. 



Leptogltphus vittatus, n. sp. 



Parum elongatus, hand depressus, niger, opacus ; antennis pedibusque 

 rufis, elytris late longitudinaliter rufo-bivittatis, argute costatis. Long. 

 3| millim. 



Head small, only about half as broad as the thorax, densely 

 punctate. Eyes convex. Thorax much narrower than the elytra, 

 about as long as broad, the sides rather finely margined, and 

 forming an obtuse angle a little in front of the middle, the sur- 

 face coarsely and closely punctate, obscurely depressed along the 

 middle, the depression broadest and most distinct at the base. 

 Elytra with the upper part chiefly red, but the deflexed sides 

 black, and the suture also of this colour, each with three acutely 

 elevated costee, and on each side o£ each costa a series of very fine 

 punctures. 



Hitoyoshi, 17th May, 1881 ; a single example. 



Eeottlathkis costatus, n. sp. (Plate III. fig. 8.) 

 Piceus, opacus, prothorace quadricostato, costis posterius a fissura trans- 

 versa profunda divisis ; elytris sulcatis, interstitiis argute elevatis et sub- 

 tilissime crenatis. Long. 4-5 millim. 



Thorax a good deal narrowed behind, much longer than broad, 

 traversed by two coarse, much elevated, longitudinal ribs on each 

 side of the middle ; and the side has a fine raised margin, parallel 



6* 



