NATURAL SCIENCES OF PHILADELPHIA. 225 



stigmata each side, one each side between the stigmata and the disk, and one 

 upon the disk, almost impunctured ; legs yellow, finely pubescent, and pointed 

 with black. 

 Length 7 line3. Humeral breadth 3 lines. Simoda, Japan. 



COREOIDEA. 

 Discogaster, Amyot et Serv. 



D. fulig in o sus . Dark brown, without lustre; head square, rugous, 

 pubescent; antenniferous tubercles robust, blunt; rostrum thick, reaching be- 

 tween the anterior coxaj, tapering towards the extremity; antennae densely 

 pubescent, basal joint thickest, constricted at its origin, slightly curved, second 

 a little longer than the third, fourth almost equal to the first, all the joints 

 cylindrical, with the tip of the apical one acute; eyes globular, salient, stem- 

 mata about as far from each other as from the eyes ; thorax subcrescentiform, 

 triangular in front to the base of the head, humeral angles produced into flat, 

 plate-like appendages, angular at the tips, posterior margin obtusely rounded, 

 surface densely covered with short pubescence, coarsely transversely wrinkled, 

 before the posterior margin a transverse, slightly elevated line, which does not 

 reach either margin, edges of the crescent irregularly serrate, antero-lateral 

 margins denticulate ; scutellum smooth at base, coarsely wrinkled behind the 

 base to the tip ; hemelytra a little paler than the other surface, finely clothed 

 with yellowish pubescence, nervures well defined, membrane subopake ; tergum 

 smooth in the middle, pubescent at the sides ; beneath sparsely clothed with 

 golden pubescence, stigmata of the postpectus, bright yellow; legs covered 

 with yellowish pubescence, tip of each femur beneath armed with a stout 

 tooth, between which and the tip are a few smaller ones, posterior femora 

 thickest, slightly curved, all the femorae subcylindrical. 



Length 23 millim. Humeral breadth 9 millim. 



This insect, owing to the length of the last joint of the antennae and the 

 absence of the sternal groove, does not completely agree with the genus as 

 characterized by Amyot ; but its general affinities seem to cause it to recur to 

 this genus, where we have accordingly placed it. 



Camptopus, Amyot et Serv. 



C. annulatus. Fuscous, minutely pubescent; head finely shagrined, 

 blackish against the eyes and behind the stemmata, stemmata and eyes red- 

 dish-brown, antennae yellowish, apical two-thirds of the last joint and tips of 

 the others blackish ; rostrum with the sides beyond the middle to the tip ful- 

 vous; thorax subcampanuliform, posterior angles armed with an acute spine, a 

 minute denticle behind the spine, posterior margin irregularly crenated ; sur- 

 face pubescent, sprinkled with small, black, elevated points ; tip of the scutel- 

 lum yellowish ; hemelytra pubescent, nervures very distinct, surface punctured, 

 membrane immaculate, shining; tergum blackish, with a large, rounded, white 

 spot behind the middle, against each incisure a white spot, exteriorly ; venter 

 yellowish, sprinkled with irregular dusky marks, a large black discal spot and 

 an interrupted black line upon the middle of the three posterior segments ; 

 legs pubescent, spotted and marbled with fuscous and yellow, posterior femorae 

 particularly dark, armed with five teeth, between the two posterior teeth a few 

 smaller ones, posterior tibias slender, curved, yellowish upon the middle, 

 slender, acute spine at tip. 



Length 7 lines. 9- Simoda, Japan. 



Pachycephalia, Uhler. 



Body robust, elongate-oval ; head filled up between the antenniferous tuber- 

 cles, base of rostrum projecting bluntly ; antennae cylindrical, basal joint thick- 

 ened, slightly curved, about equal in length to the third, second longest, 

 apical one shortest, fusiform ; eyes globular, situated upon a robust promi- 



I860.] 



