44 [Apiul, 1844. 



bases on the inner side yellowish. Antennae and palpi, dark reddish-brown. 

 Thorax with an abbreviated impressed dorsal line, and a double punctiform im- 

 pression each side behind the middle ; a regular series of distant punctures near 

 the anterior margin. Elytra, each with a broad oblique whitish band pro- 

 ceeding from the humerus and terminating on the posterior margin near the 

 suture ; region of the scutel, suture, and lateral margins from near the humerus 

 to the tip, dark reddish-brown, the brown colour extending inwards on the pos- 

 terior angle half way to the suture ; an indented subsutural line, obsoletely 

 punctured ; two abbreviated deeply punctured strife on the middle, of which 

 the anterior one is obsolete. Tergum dark-brown, with a piceous tinge 

 towards the tip. Feet and beneath dull yellowish. — Western Pennsylvania. 



Diacanthus, Latr., Germ. 



D. splendens. Brownish-cupreous, polished ; epipleura and feet rufous. 

 Length 5^ lines. 



Body dark-brownish, with a cupreous tinge, highly polished. Head coarsely 

 and confluently punctured, with a frontal impression. Antennse hairy, slightly 

 serrated, not attaining the base of the thorax ; second joint very short, little 

 more than one-third the length of the third which is a little longer than the 

 fourth joint. Thorax subquadrate, hardly longer than broad; dorsal line ob- 

 vious ; obsoletely indented each side behind the middle ; posterior angles rather 

 prominent, tinged with rufous, a little excurved; punctures large, profound, 

 smaller on the disk. Scutel suborbicular. Elytra broadest behind the middle, 

 abruptly narrowed towards the tip ; interstitial spaces slightly convex, numerously 

 and minutely punctured. Epipleura rufous. Feet rufous. Western Penn- 

 sylvania. 



Sctrtes, Latr. 



S. suturalis. Black; suture of the elytra in the middle fulvous; lateral 

 thoracic margins white; 1§ lines long: -| line wide. 



Black, slightly and finely downy. Thorax with the lateral margins and 

 area of posterior angles whitish. Elytra finely and densely wrinkled, with a 

 short, common, linear fulvous spot on the middle. Beneath black. Labrum 

 piceous. Antennae, knees, tibia and tarsi, testaceous. Femurs blackish. Penn- 

 sylvania. 



Htdnoceea, Newm. 



H. 1 ? longicollis. Black ; thorax elongated ; elytra with a yellowish subsutural 

 vitta on the basal half. Length 2£ lines : breadth about ^ line. 



Body deep black, shining, elongated-linear, with numerous erect, cinerous 

 hairs. Head not indented between the eyes. Mouth beneath, palpi, antennae, 

 and labrum yellow. Thorax narrow, elongated, and but slightly dilated a 

 little beyond the middle. Elytra abbreviated, covering about two-thirds the 

 length of the abdomen; densely and confluently punctured; a pale yellowish 

 subsutural vitta, commencing at the base and terminating a little before the 

 middle. Feet yellow. Beneath black. Pennsylvania. 



Sfercheus, Fabr. 



S. lessellatus. Reddish-brown ; head and thorax deeply punctured, the 



