43 



PAKAGUS. 



Latreille, Hist. Nat. Const, et Ins. XIV, p. 358, 1804. 



aeueus(^) Walker, List, etc.. Ill, p. 545. Ohio. 

 *angustifrons Loew, Centur. IV, p. 104. Virginia. 



bicolor Fahricius, Meigen, etc. Europe and North America. [Loew iu litt.] 

 *dimidiatiis Loew, Centur. IV, 63. Distr. Columbia. 



transatlanticus Walker, List, etc.. Ill, p. 544. Trenton Falls. 



PIPIZA. 



Fallen, Dipt. Suec. Syrphi. 58, 1816. 



buccata Macquart, Dipt. Exot. II, 3, p. 107 ; Tab. XVIII, %. 3. Carolina. 

 *calcarata Loew, Centur. VI, 43. New York._ 

 *femoralis Loew, Centur. VI, 38. Illinois. 

 *frandulenta Loeto, Centur. VI, 41. Illinois. 

 *nigribarba Loeio, Centur. VI, 40, New York. 



radicum Riley, 1st Rep. p. 131, fig. 60 ; Amer. Entomologist, I, p. 83. Illinois. 

 *salax Loew, Centur. VI, 39. Pennsylvania. 



dirisa Walker, Trans. Ent. Soc. N. Ser. IV, p. 156. Vera Cruz. 



PSILOTA. 



Meigen, Syst. Beschr. Ill, p. 350, 1833. 

 fiavidipeunis Macquart, Dipt. Exot. 5e Suppl. p. 97 ; T^b. V, fig. 5 (compare- 

 the remark in Loew, Monogr. I, p. 27). Philadelphia. 



TRIGLYPHUS. 



Loew, Oken's Isis. 1840, p. 513. 

 *modestus Loew, Centur. IV, 63. New York. 

 *pubescens Loew, Centur. IV, 61. Wisconsin. 



CHRTSOGASTER.r*) 



Meigen, Illiger's Magaz. II, 1803. 

 Antitlieiis Walker, List, etc.. Ill, p. 573. NeAv York. 



