130 



PELASTONEURUS Loew. 

 P. vagans Loew. Montreal VII (Be). 



TACHYTRECHUS Stan. 

 T. moechus Loew. Montreal (Be). 



Family EMPIDAE 



These may be known as "Dance-flies" on account of their habit of dancing up and down 

 in swarms under trees especially near brooks. They are predaceous like the robber flies, but 

 also frequent blossoms. The larvae are probably carnivorous and live in decaying vegetable 

 matter. 



STILPON Loew. 



S. varipes Loew. Montreal VII (Be). 



PLATYPALPUS Meig. 



P. aequalis Loew. Montreal VII (Be). 

 P. crassifemoris Fitch. Montreal VI (Be). 

 P. hastatus Melander. Montreal VI (Be). 

 P. trivialis Loew. Montreal VIII (Be). 



HEMERODROMIA 



H. palloris Coq. Montred IX (Be). 



SYNECHES Walker 

 S. simplex Walk. Montreal VII (Be). 



TACHYDROMIA Meig. 

 T. enecator Melander. St. Johns (C) 



SYNDYAS Loew. 

 S. polita Loew. Montreal VII (Be). 



HYBOS Meig. 



H. slossonae Coq. St. Johns VIII (Be). 



H. triplex Walker. Montreal VIII (Be); Rigaud VII (C). 



