1852.] 135 



13. H. bigeminata Lee. ; Cocc, ligeminata Rand. Bost. Journ. 2, 32. 



H. Guexl Muls. 687. 



I have compared my specimens with Randall's type, the only one remaining 

 in his collection at the time I examined it. My specimens agree perfectly with 

 JVulsant's description of H. Guexi. 



(Eneis Muls. 



1. (E. puncticollis, breviter, ovata, glabra, nigra nitida, thorace parce 

 punctato, lateribus subrotundatis, elytris impunctatis. Long. -07. 



Southern States. Broadly oval, convex, shining black. Head sparsely punc- 

 tured black, with yellow palpi. Thorax very short, marked with a few distinct 

 punctures, base rounded, finely margined, sides rounded, posterior angles 

 slightly rounded. Feet black. 



2. CE. pu s il 1 a, breviter ovata, glabra, nigra, nitida, capite thoraceque la- 

 teribus flavis, hoc parce punctulato, elytris impunctatis, pedibus flavis. 

 Long. '06. 



Georgia, and Missouri Territory. Very similar to the preceding, but besides 

 the differences in color the thorax is less distinctly punctured, and the posterior 

 angles are more rounded. A specimen from New York has the head and tho- 

 rax entirely black, but the feet are yellow. It is probably the female of this 

 species. 



SCTMNUS Kug. 



The species found in the United States may be arranged in groups, as follows. 



A. Abdominis laminae extus omnino obliteratse. 



a. Elytra maculis discoidalibus notata .... Sp. 1 5. 



b. Elytra macula apicali notata Sp. 6 7. 



B. Abdominis laminae integrae vel vix imperfectae 



1. Abdominis laminae extus interruptae . Sp. 8 9. 



2. Abd. lam. integrae. 



c. Elytra testacea ....... Sp. 10 13. 



d. Elytra nigra, apice testacea Sp. 14 21. 



e. Elytra nigra immaculata Sp. 22 27. 



A. a. 



1. S. am ab i 1 is , ovalis, minus convexus, ater nitidus, punctatus, subtiliter 

 pubescens, capite, thoracis lateribus, elytrorum macula obliqua, fascia postica, 

 apice, pedibusque laete flavis. Long. '07. 



New Orleans, one specimen, Mr. Guex. Oval, less convex than usual, shining, 

 finely and densely punctured, and very finely pubescent. Head and organs of the 

 mouth yellow. Thorax narrowed in front, base slightly sinuous, finely margined, 

 black, sides with a yellow margin, which is wider in front. Elytra forming a 

 very distinct angle with the sides of the thorax, black, with a large transverse 

 spot, a posterior band and the apex yellow ; the spot is oblique and extends from 

 just below the humerus to the middle of the elytra, ending near the suture ; the 

 band is placed at the second third of the elytra, is sinuate on each side, and at the 

 sides and suture is confluent with the yellow apical margin, so that on each side 

 a transverse black spot is included. Under surface black, venter testaceous at 

 the sides and apex ; feet yellow. 



2. S. ornatus, ellipticus, convexus, ater, opacus, breviter pubescens, sub- 

 tiliter punctulatns, elytris maculis magnis utrinqueduabusauruntiacis. Long. "09. 



Lee. Agassiz' Lake Superior, 239. 



One specimen, found on the North shore of Lake Superior. Elliptical, mode- 

 rately convex, black without lustre, finely punctulate, and covered with short 

 gray hair. Thorax narrowed in front, slightly rounded on the sides, base not 

 sinuate, distinctly margined in the middle. Elytra with a large oblique orange 

 colored spot before the middle, and another rounded, somewhat transverse one 

 behind the middle extending nearly to the sides and to the suture. Under sur- 



