Staphi/linida of Japan. 83 



emarginate, and is impressed in front of the emargination, 

 the sides of the imj>ression acutely elevated, but these ele- 

 vations short ; the 5tli segment is also a little flattened at 

 the extremity, -where it is more finely punctured and pu- 

 bescent. 



A single specimen, found on Mitzuyama, Nagasaki. 



151. Stenus macies, n. sp. (Sec. I. A. Er.) Elongatus, 

 gracilis, niger, nitidulus, fortiter ruguloso-punctatus, capite 

 elytris latiore, fronte excavata, medio late obsolete elevata ; 

 pedibus elongatis, rufo-fuscis. Long. 2^ lin. 



This very distinct species is allied to *S'. proditor, though 

 extremely distinct therefrom. Palpi pitchy, with the first 

 joint and base of the second yellow. Head broader than 

 the elytra ; vertex excavated, the middle at the bottom of 

 the excavation broadly but slightly elevated. Thorax 

 narrower than the elytra, longer than broad, the sides in 

 the middle much dilated, coarsely and very densely punc- 

 tured, the interstices rugulose. Elytra about as long as 

 the thorax, coarsely and rugosely punctured. Hind body 

 slender, the basal segments rather coarsely, the apical 

 ones more finely punctured. Legs very long, dusky red, 

 the lower half of the femora, and a large portion of the 

 tibife, being infuscate. 



In the male on the under side the hind margin of the 

 7tli segment of the hind body is emarginate ; the 5th and 

 6th segments are broadly and deeply impressed along tlie 

 middle, the sides of the impressed parts densely clothed 

 Avith fine yellow pubescence ; the 3rd and 4th segments are 

 also a little impressed or flattened. 



A single individual, found at Nagasaki. 



152. Stenus puherulus,n.s^. (Sec. I. A.Er.) Plumbeo- 

 niger, densius albido-pubescens, palpis articulo primo 

 testaceo, pedibus fliscis, femoribus basi rufescentibus ; 

 thorace oblongo, ^equali, elytris hoc baud longioribus, 

 abdomine obsolete puncta,to. Long. 1| lin. 



This species is very similar to S. incanus, in structure, 

 form, sculpture and pubescence, but it has the elytra much 

 shorter, and the legs differently coloured. Head very 

 similar to that of incanus but with the vertex a little 

 excavate. Palpi black, with the basal joint pale. Thorax 

 longer than broad, a little narrowed behind, closely but 

 not coarsely punctured, with a distinct white pubescence ; 



G 2 



