1871.] 97 [UMer. 



The European congener of this species has been referred by Dr. 

 Fieber to a new genus Platysolen, which he established for it. The 

 generic name here adopted has priority over that of Dr. Fieber, and 

 should be adopted in its stead. 



Lioderma. Nov. Gen. 



General characters of Pentatoma Fieber. Body longer in propor- 

 tion to its width than in that genus ; pronotum, together with the 

 head, forming a long triangle. Rostrum reaching at least to the mid- 

 dle of the first ventral segment, the first joint much shorter than the 

 head ; bucculaB not reaching quite to the base of the head, very slen- 

 der, dilated at the anterior end. Antennae as long as the corium, 

 the tooth at base of scapus long. Scutellum long, rather narrow, 

 fully two-thirds as long as the abdomen. Osteolar canal closed, sub- 

 cylindrical, the orifice of the osteole opening beneath a projection at 

 tip of the canal. Corium a little produced at the outer extremity. 



1. L. saucia. 



Pentatoma saucia Say. Heteropt. p. 6, no. 12. 

 No. 47. Harris Collection. 



2. L. senilis. 



Pentatoma senilis Say. Heteropt. p. 5, no. 8. 

 Pentatoma grisea Dallas. Brit. Mus. Cat. Hemipt. p. 246, 33. 

 No. 38. Harris Collection. $%. "June 30th, 1826. May 

 10th, 1835." 



Atomosira. Nov. Gen. 



Oval, the sides subparallel, not dilated posteriorly. Head short, 

 rounded in front, the sides sinuated before the eyes; eyes large, sub- 

 truncated behind. Antennae longer than the head and thorax united. 

 Rostrum reaching beyond the first ventral segment; bucculae slender, 

 waved, not reaching the base of the head. Thorax hexagonal, con- 

 vex, transverse, the lateral margins thickened, almost straight, 

 posterior margin concavely arcuated; mesosternum with a feeble 

 carina which becomes enlarged and produced at its anterior end. 

 Scutellum long, suddenly narrowed before the tip. Corium curved 

 on the posterior margin, the exterior angle a little produced. Ven- 

 ter convex, the basal spine rudimentary. Osteole situated at the 

 outer end of a short, closed duct, the groove running from it out- 

 wardly very slender and long. 



