322 HETEROPTEROUS HEMIPTERA. 



21. P. SEMiviTTATA. — Pale, with confluent black punctures so 

 arranged as to leave three vittae on the head and about five on 

 the scutel. 



Inhabits Indiana. 



Above yellowish-white, with confluent black punctures, and 

 numerous short hairs : antennae dusky at tip ; second joint 

 [767] rather longer than the third : head with three dull yellow- 

 ish vittae : thorax with three vittse, becoming obsolete behind ; 

 lateral margin a little depressed, impunctured ; lateral edge very 

 slightly arquated ; lateral angles rounded, not prominent ; scutel 

 with five vittsB confluent behind : tergum blue-black ; margin 

 with yellowish, large, quadrate spots : beneath yellowish • two 

 black lines before the eyes : an interrupted lateral vitta of black 

 punctures from the eyes nearly to the posterior extremity : feet 

 immaculate, tarsi dusky. 



Length three-tenths of an inch. 



The specimen is a female. It is more than usually hairy. It 

 has some resemblance to Stoll, fig. 102, but is shorter. 



22. P. <}AMMA.— Fabr. {Cimex) Syst. Rhyng., p. 177, C. al- 

 hipes, E. Ent. Syst. suppl. p. 4 P. ; punctipes nob., Jour. Acad. 

 Nat. Sci. V. 1, p. 313 ? A common species. 



[Say makes an error in quoting Fabricius for P. gamma. 

 There is no such species either in Systema Rhyngotorum or in 

 Ent. Syst. or its supplement. The correct name is P. lugens. 

 Fabr. Ent. Syst. (1794) 4, 125 : C albipes Fabr. Ent. Syst. 

 Suppl. 535 : C. p>unctipcs Beauv. Ins. pi. 8, fig. 6; Say, Journ. 

 Ac. Nat. Sc. 4, 313.— Uhler.] 



23. P. BiocuLATA Fabr. (Cimex) Syst. Rhyng. 175. 

 Var. a. transversa ? thoracic spots transverse. 



This species inhabits the Southern States. 



23. [bis.] P. BIFIDA nob. Descr. of North American Ins., 

 found by Joseph Barabino. [Ante, p. 303.] Metasternum ele- 

 vated and bifid at the tips. 



25. P. TENEBROSA nob., ibid. p. 8. Blackish, antennae and 

 feet varied with white. 



CYDNUS Fabr. 

 1. C. LiGATTJS. — Blackish ; thorax and hemelytra with a white 

 exterior edge. 



