HETEROPTEROUS HEMIPTERA. 321 



tween the lateral angles ; on the anterior submargin are two 

 transverse, yellow spots, each enclosing a green dot; lateral 

 edge granulated and nearly rectilinear, black or dark rufous ; 

 lateral angles but little prominent, rounded : scutel and heme- 

 lytra immaculate, membrane whitish or little tinged with rufous : 

 beneath yellow, tinged with green ; venter with a lateral sub- 

 marginal series of points and another series of black points on 

 the lateral edge ; tarsi rufous. [ 766 ] 



Length over two-fifths of an inch. 



Var. a. Thoracic band obsolete. 



Male much smaller ; the anterior portion of the thorax yellow- 

 ish, obliterating the two spots ; feet not obviously rufous. 



Length three-tenths of an inch. 



The variety of this species was taken by my brother in New 

 Jersey. 



One of my male specimens has one of the antennae not more 

 than half the length of the other, in consequence of the un- 

 natural brevity of the second, third and fourth joints, which are 

 hardly longer than broad; the fifth joint is much compressed but 

 not dilated. 



20. P. nervosa. — Rufous, with black punctures ; antennae 

 second joint half as long as the third. 



Inhabits Indiana. 



Above rufous or deep testaceous, with numerous separate 

 black punctures : head with confluent punctures, excepting on 

 the carina: antennae dusky at tip; second joint hardly over 

 half the length of the third ; eyes on the posterior part whitish : 

 thorax, lateral edge impunctured, and on its anterior part almost 

 rectilinear, curving towards the lateral angles which are hardly 

 prominent beyond the humerus, and very obtusely rounded : 

 scutel, lateral edge at base arquated so as to leave an obvious 

 interval between its basal angles and the thorax : hcmelytra, 

 membrane with its nervures blackish : tergum blue-black-, margin 

 yellowish with black spots : beneath pale rufous with black punc- 

 tures, which become rufous on the abdomen; a blackish, inter- 

 rupted, lateral vittafrom the eyes becomes obsolete on the venter: 

 venter with double black marginal spots; feet with black points. 



Length nearly two-fifths of an inch. 



The specimen is a female. 



21 



