Notes on the Commoner Species 193 



England to New York. T. pa-turbans has a rather 

 general range, being common locally over the country. 

 Adults of this were taken at Baton Rouge. Little 

 is known of this species. It has a most disagreeable 

 buzz, quite audible when the insects are abundant. 

 Mr. Brakeley records that it is a very fierce biter and 

 believes it to be a migratory form. 



