NOTOXUS BICOLOR. 
SPECIFIC CHARACTER. 
Blackish, thorax and feet testaceous, immacu- 
late. 
Inhabits Pennsylvania and New Jersey. 
Head very dark testaceous, front and vertex co- 
vered by short incumbent hair of a silky lustre ; 
eyes black. 
Thorax testaceous, immaculate; horn obtusely 
dentate each side, somewhat bicarinate each side 
above ; scutel black, small. 
Elytra purplish black; breast and abdomen tes. 
taceous black, silky. 
Body with short incumbent hair, feet naked. 
Size the same as the preceding, and resembling 
it inform. In the forests of New Jersey I have 
found this little insect in the month of June, on the 
leaves of the hickory, (Juglans tomentosa, Mi- 
chaux,) and of some other plants. The Rey. John 
