NEW COLEOPTERA FROM THE LOO-CHOO ISLANDS. 7 



tured and rugose head, in which the clypeus is scarcely separated 

 from the face, the whole upper portion of which is covered with 

 oblique strigse ; the sides of the thorax are also more closely 

 punctured and rugose than most of the other Eastern species 

 with which I am acquainted, and the punctuation of the elytra is 

 very strong; in the female, the elytral rugosities are, as usual, 

 much stronger, forming transverse wrinkles to the middle of the 

 elytra at the sides, where there is also a narrow longitudinal 

 costa visible. 



CORYNODES JAPONICUS, Sp. n. 



Metallic green ; head remotely punctured ; thorax very convex, the disc 

 closely and finely punctured ; elytra with basal depression, strongly punc- 

 tured in closely approached rows, claws appendiculate. Length 4-5 lines. 



Of neirly parallel and subcylindrical shape; the head with a central 

 groove, strongly but not closely punctured ; the clypeus separated from the 

 face at the sides by a short groove not extending to the middle, broader than 

 long, its surface rugosely punctured ; mandibles broad, their apex truncate, 

 piceous as well as the palpi; antennae extending a little beyond the base of 

 the elytra, the lower six joints nieiallic, stained with fulvous, the others 

 purplish, forming a broad tive-jointed club, the apex of the terminal joint 

 acute ; thorax very convex, swollen in front, about twice as broad as long, 

 the sides strongly rounded, widest at the middle, the angles acute but not 

 much produced, the surface closely impressed with larger and smaller 

 punctures, the space near the margins nearly impunctate; scutellum 

 purplish ; elytra with a distinct transverse depression below the base, the 

 shoulders prominent, tuberculiform, the punctuation moderately strong, 

 arranged in closely approached rather regular rows, the sides with narrow, 

 purplish reflexed margins ; tibiae strongly rugose, the tarsi strongly 

 widened; presternum longer than broad, rugose. 



The above description is that of the male, which, on account 

 of the anteriorly swollen thorax, resembles a species of Chry- 

 sochus rather than a true Corynodes ; this convexity is less 

 noticeable in the female. The peculiar shape of the thorax at 

 once distinguishes the present species, the first Corynodes known 

 from this locality. Mons. Oberthur has received numerous 

 specimens, of which he kindly sent me several for examination. 



SeB^THE FLAVOLIMBATA, H. Sp. 



Flavous, the antennae (the basal joints excepted) and the tarsi black, 

 thorax impunctate; elytra microscopically punctured, bluish black, the lateral 

 and apical margins flavous. Length 2 lines. 



Hend impunctate, the frontal elevations strongly raised, transverse; 

 carina in shape of an acute perpendicular ridge; palpi flavous, incrassate; 

 antennae extending to the middle of theelytra, black, the lower two joints 

 flavous, third joint slightly shorter than the fourth ; thorax nearly three 

 times broader than long, the sides strongly rounded with a rather broad 

 flattened margin, the angles thickened, the surface with a broad but 

 shallow depression at the base, the sides also more or less obsoletely 



