80 DESCRIPTION OF INSECTS 



Head blackish, base punctured ; eyes large ; Jiasus triangular, 

 piceous, with a yellow hind margin ; untennw and palpi 

 testaceous ; labrum white somewhat silvery. 



Thorax black-brown, broad as the elytra at base, gradually 

 narrowed before, basal line sinuated each side and angu- 

 lated in the middle, punctures obsolete on the disk, dorsal 

 Ihie obsolete, basal lines none, lateral margin white some- 

 what silvery near the edge, edge black-brown. 



Scutel not perceptible. 



Elytra black-brown, strife thirteen, towards the tip and mar- 

 gin obsolete, punctures distant, impressed only on the la- 

 teral paries of the strise, interstitial lines convex, margin 

 whitish somewhat silvery near the edge, dilated and undu- 

 lated behind with several punctiform hyaline maculte. 



Pectus and postpectus punctured, piceous ; feet testaceous j 

 veiiter pale piceous, impunctured. 

 This specimen I obtained near Great Egg-harbour, New 



Jersey, on the skirt of a forest. 



Genus Elaphrcs. Fabr. 



Antennae hardly longer than the head and thorax, somewhat 

 more robust towards the tip ; external maxillary and labial 

 palpi with the ultimate joint subcylindrical, longer and 

 larger than the preceding joint ; labium profoundly emar- 

 ginate ; maxilla; hardly ciliated on their external side ; 

 thorax subcylindrical, somewhat dilated in the middle, 

 unequal, longer than broad ; anterior tibia emarginate on 

 the inner side. 



Species. 



E. riparius? dark brownish-green, a little bronzed; elytra 

 with dilated, orbicular, impressed spots, and three elevated 

 studs each side of the suture. 



Le?igth more than three-tenths of an inch. 



E riparius. Fabr. 



