62 PROCEEDINGS OF THE ACADEMY OF 



9. 0. thoracica (Fabr.), Syst. El., i. 498. 



Broadly ovate, ferrugineous; antenna?, tibite, and tarsi fuscous; 

 elytra violet, margin narrowly and opii)leunx* ferruginous; thorax 

 transverse, sides nearly straight, angles acute, deeply punctate, 

 disk with seven black dots (four anterior and three immediately 

 posterior and alternate to them) ; scutellum smooth ; elytra 

 closely punctate; anterior tibise deeply sulcate externally. L. 

 .30. Southern and Middle States. 



10. 0. circumcincta, sp. n. 



Ochreous, antenna, tibife, metasterum black; head deeply punc- 

 tate ; thorax opaque, sides curved, angles moderately prominent, 

 surface sparingly punctate, generally with two oblique discoidal 

 marks black ; elytra closely punctate, subrugose, suture and 

 maro-in very narrowly black, also a broad dorsal vitta black, not 

 reaching the apex. L. .24. Southern States. 



Var. Dorsal vitta absent. 



B. Tliorax more transverse^ sides exjyJavate, antennse ivith the 

 third joint subglabi'ous lite the second. 



H. 0. fiavocyanea, sp. n. 



Ovate, ferrugineous, antenna^ with joints 4-11 fuscous; thorax 

 ochreous, disk broadly black, sparingly and obsoletely punctate, 

 angles acute ; scutellum smooth, black ; elytra steel-blue, margin 

 and epipleurre ochreous, finely and sparingly punctulatc, with a 

 few deeper punctures on the callus; posterior femora punctate ex- 

 ternally ; tibiae emarginate before the apex. L. .24. Texas (Bel- 

 frage). 

 12. 0. petaurista (Fabr.), Syst. El. i. 495. 



Ovate, ochreous, beneath ferrugineous; antennae (except the 

 base) and 4 anterior tibia? fuscous ; head ferrugineous deeply 

 punctate ; thorax with a variable discal mark blackish, obsoletely 

 punctate; elytra distinctly punctate with the suture, a dorsal and 

 a lateral vitta black ; posterior femora punctate externally, tibia? 

 emarginate. L. .21. Southern States, Texas. 

 Var. Sutural and dorsal vitta confluent. 

 Yar. Elytra finely punctate. 



13. 0. miniata (Fabr.), Syst. El., i. 495 ; fallax, Mels., Pr. Acad., iii. 



Yery closely allied to the preceding, but smaller ; thorax with 

 the hind angles obtuse, lateral vitta of the elytra absent, and the 



