SOMfi NORTH AMERICAN INSECTS. 173 



Paykull to an insect which proved to be the marginatus, Fabr. But 

 if it be determined, nevertheless, tiiat the present name be changed, 

 that of mdlillus may be substituted. It is found in Indiana, and I ob- 

 tained a specimen at New Orleans. 



30. E. pectoralis. Yellowish; thorax rounded; head and elytral 

 band black. — Inhab. Missouri. 



Body yellowish with a slight rufous tinge ; punctures hardly percep- 

 tible : head blackish-piceous : clypeus very obtusely rounded at tip to 

 the eyes : antennse and palpi pale yellow : thorax with the lateral edge 

 much and regularly arcuated to the origin of the spines, where it be- 

 comes a little excurved; spines short, acute, carinated : scui el suhorhi- 

 cular : elytra with obsolete striae ; a transverse black band behind the 

 middle running down the suture and exterior margin: pectus with the 

 middle segment dilated. — Length less than one-tenth of an inch. 



Resembles areolatus, Nob., but is much smaller, the thorax more 

 rounded, the spines smaller, the middle segment of the pectus is di- 

 lated, &c. A variety from Dr Harris has the elytral fascia extending 

 to the tip, and in size is a little longer. 



31. E. curiatus. Blackish; elytra yellowish with a black band; 

 thorax with a fissure each side at base. — Inhab. U. S. 



Body blackish-livid, with minute punctures : clypeus obtusely round- 

 ed, edge reflected : antennae, rufous, rather robust, a little serrate ; se- 

 cond joint two-thirds the length of the third ; ultimate joint hardly 

 longer than the preceding one : thorax with a fissure in the posterior 

 edge near the spines ; spines not carinate, but the lateral edge is some- 

 what reflected : scutel oblong, concave : elytra with well impressed, 

 punctured striae ; yellowish-white, with a dusky band on the middle 

 expanding a little on the margin and suture : feet pale yellow.— Length 

 three-tenths of an inch. 



I obtained three specimens in June. 



32. E. sanguinipennis, Nob. (Journ. A. N. S.). Closely resembles 

 prdRustus, Fabr., which, however, has the colours much more vivid ; 

 the punctures rather larger and more dense, particularly those of the 

 interstitial lines of the elytra; the thoracic spines longer; and the 

 second and third joints of the antennae of our species are more cylin- 

 drical. 



