the Family Rhysodidffi. 81 



Found rather comraonlj at Nikko and in the Hakone dis- 

 trict ; and one example was captured near Sapporo. Inhabits 

 beecii trees. 



Rhysodes sulcicollis, sp. n. 



$ . Elongatus, bruuneus, subnitidus, thorace profunda trisulcato. 

 L. 5| mill. 



Elongate, rather robust, brown, rather shining; head not 

 rounded behind the eyes, with the cephalic lobes meeting in an 

 angle in front of the neck; thorax narrowed anteriorly but 

 parallel at the sides, which leaves three quarters of the pos- 

 terior area nearly quadrate ; the four raised portions between 

 the sulci are broad, parallel, and all nearly of the same width ; 

 the elytra are rather coarsely punctate-striate, with the second 

 and third interstices slightly elevated. The first joint of the 

 antenna is opaque and more than double the size of the 

 second ; the head or rostrum in front of the insertion of 

 the antennse measures nearly the length of the basal anten- 

 na! joint. The back part of the head behind the eye is exca- 

 vated. This description is drawn from a female example, 

 but it is a very distinct species, and I think the male charac- 

 ters in the legs will be very remarkable. 



One example from Oyayama, in Higo, May 1881. 



Rhysodes rostratus, sp. n. 



J . Prsecedenti simillimus at paulo angustior ; rostro producto, 



capite vix traiisverso. 

 L. 51 mill. 



Elongate, brown, shining ; head with lateral outline semi- 

 circular in the region of the eyes, cephalic lobes approach in 

 front of the neck obtusely. Kostrum or head in front of 

 antennas the length of the first two joints of the antennse, 

 very parallel and of corresponding wid.th behind the antennae 

 until the enlargement of the head for the cephalic lobes. The 

 thorax has three deep and complete sulci, is rather narrow, 

 and gradually rounded off behind the head. The elytral 

 punctures are much smaller than those of the preceding- 

 species and the interstices less raised. There is a distinct 

 tooth on the anterior femur, and the base of the hind tibige is 

 slightly enlarged, as in R. mj)onensis. The last segment of 

 the abdomen is rather coarsely and thickly punctured, and 

 the cephalic lobes are a little prominent over the neck. 



Ann. (fc iMag. JSl. Hist. Ser. 6. Vol. ii. 6 



