804 INSECTS OP LOUISIANA. 



The species in which this character of the elevated metasternum 

 occurs, and in which the tarsi have the usual number of joints, 

 may be distinguished as a subgenus under the name of Ascra. 



[Belongs to Edessa, and is probably one of the Mexican species 

 described by the older authors. — Uhler.] 



2. P. tenebrosa. — Blackish ; antenna and feet varied with 

 white. 



Inhabits Louisiana. 



Body densely punctured, blackish : head narrow, long, acute 

 at the tip : eyes prominent : antenna, second and third joints 

 equal ; all the joints white at their bases excepting the first : ros- 

 trum yellowish, terminating between the posterior feet : thorax 

 with prominent, acute spines at the posterior angles, inclined a 

 little forwards ; elevated behind, anterior angles somewhat trun- 

 cate, not reaching [9] the eyes, lateral edge simple : scutel with a 

 few, obsolete yellow points ; tip yellowish ; hemelytra with a few 

 obsolete, yellow points : feet yellowish ; tip of the thighs and 

 points on the tibiae and on the tarsi black. 



Length nearly half an inch. 



PENTATOMA. 



P. hilaris. — Green ; tips of the three last joints of the an- 

 tennae blackish or rufous. 



Inhabits United States. 



Body bright green, punctures very numerous and dense ; edges 

 of the head, thorax, hemelytra and abdomen white, yellowish, or 

 rufous : antenna, second and third joints, subequal, the latter 

 longer, third and following black or rufous at their tips : thorax, 

 lateral edge rectilinear from the anterior angle to the posterior 

 rounded angle : abdomen on the edge with a black point at each 

 incisure : rostrum terminating between the posterior feet. 



Length from half an inch to more than three-fifths. 



It inhabits various parts of the Union. Nuttall gave me two 

 individuals which he obtained in Misssouri ; Mr. Oemler sent me 

 one from Georgia, that varies in being somewhat shorter and 

 more robust than the others ; Mr. Barabino sent me two, and I 

 have also found them abundantly in this State. A label attached 

 to one in my cabinet says "like pensylvanka Beauv. pi. 11, but 

 not the same. I have not present at access to Beauvois' work. 

 Sexes alike. [10] 



