2 20 [March, 1845. 



medial line almost entire, obscurely denned ; posterior angles strong, acute, 

 slightly excurved, testaceous : scutel oblong, distantly punctulate : elytra 

 punctate-striate, punctures transverse, interstices flat, transversely wrinkled; 

 lateral and sutural margins and a discoidal vitta, dull testaceous ; sides rec. 

 tilinear and parallel from from the base to almost the apex ; feet dull testa- 

 ceous; tarsi slender, with the second joint nearly as long as the first; 

 posterior femoral plates sublanceolate. 



Rhipicerid^:, Latr. 

 Sandalus, Knoch. 



1. S. rubidus. Head and thorax brown or blackish; elytra fusco-rufous. 

 9 1. long ; 3| 1. wide. Pennsylvania. 



Densely rugose ; head and thorax black, minutely and confluently wrinkled 

 and punctured, densely clothed with yellowish pile, the latter with an obtuse 

 indentation on the middle of the anterior margin, and an obsolete one in front 

 of the scutel; between the two indentations is a faint medial line; lamellae of 

 the antennae dusky rufous ; elytra dusky rufous, finely and densely wrinkled ; 

 the three ordinary raised lines not strongly defined : beneath and feet black ; 

 postpectus densely clothed with yellowish hairs. This species bears a very 

 strong resemblance to S. niger, Kn., but it differs from that species in being 

 always more robust, and in having the elytra differently colored, and always 

 differently and more obsoletely sculptured. The elytra are scarcely punctured 

 in rubidus, but in niger they are obviously and profoundly punctured. But 

 as only male specimens of rubidus have yet been found, it may still prove to 

 be only a male variety of niger. Is not rubidus perhaps Rhipicera rujipennis 

 of Dejean's Catalogue 1 



2. S. brevicollis. Black, punctured ; thorax short and round at the sides. 

 6 I. long; 2f I. wide. Pennsylvania. 



Robust, oblong, black ; head opake, densely and finely rugose-punctured, 

 with the frontal lateral edges more than usually elevated above the insertion of 

 the antennae : thorax more than twice shorter than long, wider at base than 

 at apex, widest behind the middle, with the sides rounded ; densely and 

 minutely punctured and wrinkled, densely clothed with an ashy pubescence; 

 a large triangular indentation on the middle of the anterior margin, and a 

 similar but less profoundly indented one in front of the scutel ; medial groove 

 distinct between the two indentations : elytra opake, with the ordinary lines 

 distinct, spaces with irregular series of large, profound and approximate punc- 

 tures; vesture indistinct : beneath and feet black, finely and densely punctured, 

 and clothed as above ; tarsi piceous. Resembles in the thorax S. pelrophya, 

 Kn., but in the general color and outlines and sculpture of the elytra it differs 

 essentially from the same. 



Cebrionidx, Latr. 

 Atop a, Fabr. 

 1. A. ornata. Black; thorax rosaceous, with two large black spots ; each 



