204 ACADEMY OF NATURAL SCIENCES 



an impressed, transverse line near the base above : scutel minute : 

 elytra bright bluish-green, with nine series of longitudinal punc- 

 tures : beneath black, polished, impunctured. 



Leng-th more than one-fifth of an inch. 



Found on the Tradescantia virginica. 



ORSODACNA Latr. 



0. VITTATA. — Black, punctured; elytra pale testaceous; 

 suture and outer margin black ; feet rufous. 



Inhabits Missouri. 



Body black, punctured : basal joints of the antennae, labrum 

 and palpi obscure reddish-yellow : thorax with dilated, confluent 

 punctures : elytra with dilated, confluent, dense punctures, pale 

 yellowish-white ; suture and exterior margin black : feet pale 

 rufous : tarsi dusky. 



Length nearly one-fourth of an inch. 



Found in Missouri. [431] 



HISPA Linn. Latr. 



1. H. LATERALIS. — Black ; thorax, each side, and humerus 

 yellowish. 



Inhabits Illinois and Missouri. 



Body black, punctured : head impunctured, rugose above 

 between the eyes : front with a prominent tubercle beneath the 

 antennae : antennae more robust towards the tip : thorax with a 

 dilated, reddish-yellow margin confluent before : pectus yellow- 

 ish ; each side behind black : postpectus posterior to the inter- 

 mediate feet, impunctured, polished : feet punctured ; anterior 

 thighs annulate, with yellowish at base ; intermediate and poste- 

 rior ones with a large yellowish spot near the base : elytra serrate, 

 each with three double and one quadruple series of large, rounded, 

 profoundly impressed punctures, separated by three elevated 

 lines, and a common sutural one ; a humeral, reddish-yellow spot 

 attenuated behind, and terminated over the origin of the poste- 

 rior feet : abdomen impunctured, polished. 



Length three-tenths of an inch. 



Obtained on the bank of the Mississippi, above the confluence 

 of the Ohio river, and also near the Eocky Mountains. It is 

 destitute of the frontal dot of humeralis, but is probably more 



[Vol. III. 



