AMERICAN ENTOMOLOGY. 61 



cave ; antennae purple-black, the first and second joints green- 

 ish-cupreous ; thorax unequal, with large confluent punctures 

 each side, and canaliculate along the middle : posterior angles 

 acute : scutel very small, transverse suborbicular, indented on 

 the middle : elytra with four distant, somewhat elevated lines, 

 and one or two near the suture : in the interstitial spaces are ir- 

 regular, slightly elevated transverse lines, hardly visible to the un- 

 assisted eye : before the middle of each elytrum, is a large, very 

 slightly impressed spot, and another similar one, is rather behind 

 the middle; there is also a very small common indented spot on the 

 suture, opposite to the former spot ; exterior edge serrated, from 

 near the middle to the tip ; tip simple, somewhat acute ; beneath 

 cupreous, polished : a brilliant dilated coppery line extends 

 from the mouth to the pectus ; a large groove originates on the 

 anterior part of the pectus, and terminates on the second seg- 

 ment of the venter : tarsi dusky bluish. 



Obs. This is one of our largest species, and although far less 

 agreebly decorated than the preceding, is yet distinguished by a 

 more uniform garb of polished metallic coloring. I captured the 

 specimen when descending the Arkansaw river, with a detachment 

 of Major Long's exploring party. 



The upper left figure. 



[x\ Chalcophora closely allied to, or more probably, identical 

 with Buprestis suhstrigosa Lap. and Gory.; the latter species 

 occurs from New York to Missouri. Specimens from the original 

 locality would however be desirable for comparison ; the figure is 

 badly executed. — Leg.] 



VANESSA. Plate XXVIL 



Generic character. Antennae terminated by an abrupt short 

 club ; palpi contiguous, even at the extremity, the two combined, 

 resembling a rostrum ; anterior pair of feet in both sexes, short 

 and very hairy; the two posterior pairs of tarsi, with double 

 nails. 



Obs. The species which constitute the Fabrician genus Van- 

 essa, were referred by Linn^ to his comprehensive genus Papilio. 



The larvae or caterpillars in this genus, live on plants of little 

 altitude, and are often gregarious ; they are armed with numer- 

 ous, long, rigid, dentated spines, which, like the quills of the 



