second, third, and fourth segments, with three 

 abbreviated series of punctures near their bases. 



OBSERVATIONS. 



During the recent journey of Major Long's 

 party to the source of St. Peter's river, I obtained 

 three individuals of this interesting species, the 

 only one yet found in North America. They 

 occurred in a small forest of scattered trees, 

 where we halted at our dining hour, in the imme- 

 diate vicinity of Wennabea's Sauk village on the 

 Pecktannos. 



None were observed at any subsequent period 

 of the journey. 



PLATE XX. 



