/, 



JUNE. 



199 



peared thus dull and inert. In Say's American Entomo- 

 logy it is spoken of as a rarity : he says, " During the re- 

 cent journey of Major Long's party to the source of the 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 immediate vicinity of Wennabea's 

 Sauk village on the Pecktannos. None were observed at 

 any subsequent period of the journey." Say's figure is 

 rather smaller than our specimens. 



IMAGO AND PUPA-SKIN OF COENOMYIA PALLIDA. 



C. — What birds are those flying so swiftly in a small 

 flock? 



F, — That is the celebrated Passenger Pigeon (Columha 

 Migratoria), and the first flock I have seen this year. They 

 do not appear to make their migrations, as birds in general 

 do, to avoid ungenial seasons, but to obtain in abundance 

 that food which is most suited to their wants : hence their 

 appearances are very uncertain as to time. They are com- 



