68 PROCEEDINGS OF THE ACADEMY OP 



tenure red ; thorax with the sides deflexed, slightlj'' rounded, 

 closely punetulate with coarser punctures intermixed; elytra 

 with nine rows of punctures, interstices obsoletely finely punetu- 

 late with a few larger punctures. L. .lO-.ll. Middle and 

 Southern States, Texas. 



Var. Ooata, Lee. 



-rEneous ; el^'tral punctures less marked. California. 



Systena, Chevr. 



Anterior coxal cavities closed ; antenna; with the second joint 

 oval, shorter than the tliird, which is elongate, equal to the fourth ; 

 tarsi short, first joint much shorter than the last; claws ample; 

 thorax finely margined at base ; elytra punctate. 



A. Thorax and elytra unicolorous, black, or brassy. 



1. S. hudsonias (Forst.), Nov. Spec. Ins. 



Elongate oval, black, anterior legs and joints 3-1 of the antenna 

 paler ; head and thorax obsoletelj^ punetulate, the latter slightly 

 broader than long ; sides straight, not narrowed in front, broadl}"- 

 margined ; scutellum smooth ; elytra rather closcl}' punetulate, 

 evidently margined ; under surfoce smooth, subpubescent. L. .16. 

 Middle and Southern States. 



2. S. frontalis (Fab.), Syst. El., i. 500. 



Very closel}^ resembling the preceding, but the head is en- 

 tirely red, and the thorax more visibly' punctate. L. .16. Mid- 

 dle and Southern States. 



J* Last ventral segment subemarginate with a smooth medial 

 line. 



3. S. subsenea, Lee, Pac. R. Rep., p. 68. 



Smaller than S. Imdsonias ; shining, decidedly a?neous; legs 

 and antenna; more visibly red ; head, thorax, and elytra equally 

 and visibly punctate; thorax broader in front, anterior angles 

 deflexed. L. .14. San Jose, California. 



4. 8. collarlB, sp. n. 



liesembles S. frontalis in its quadrate thorax ; bluish-black, 

 thorax yellowish-red, base of antenna} piceous ; head smooth; 

 thorax sparsely, elytra more closely punctate; under side smooth. 

 L. .16-20. Texas (Bclfrage, 878). 



