polished; segments, particularly those near the 

 base, with an obsolete rufous spot on each side, 

 more distinct on the fourth segment. 



OBSERVATIONS. 



Taken in the same region with the preceding. 

 The number of cubital cellules do not corre- 

 spond with the definition of the genus, as we 

 have here adopted it. There are, in fact, three 

 cubital cellules, of which the first is very small, 

 and it is the second that receives the recurrent 

 nervures. Notwithstanding this character, how- 

 ever, there can be no doubt of these insects being 

 correctly arranged, when placed in this genus. 



The left figure. 



TREMEX COLUMBA. 



SPECIFIC CHARACTER. 



Thorax ferruginous; abdomen with a band, 

 and lateral spots yellow. 



PLATE XXXII. 



