42 



*inaequalis Loeio, Centur. VII, 70. Cuba. 



*laetus Loew, Centur. V, 46. Cuba. 



*trochilus Walker, Dipt. Saund. Ill, p. 216. Mexico. 



[Chymopliila splendens Macquart, Hist. Nat. Dipt. I, p. 48G ; Tab. XI, fig. 3 

 (1834) ; Dipt. Exot. II, 3, p. 10; Tab. I, fig. 3. Pliiladelphia. Mr. Bigot, 

 in whose possession the typical specimen of Macquart's description now 

 is, makes the following statement about it (Annales da la Soc. Entom. 

 de France, 1858, p. 590) : " The bead of this specimen is glued on, and 

 resembles that of Conops, while the body is that of an exotic Microdon." 

 We may pretty safely, therefore, strike out this genus and species from 

 among the number of existing forms.] 



CHRYS0T0XUM.(2) 



Illiger's Magaz. II, 1803. 



*derivatum Walker, List, etc.. Ill, p. 542. Huds. B. Terr.; Yukon River, 

 Alaska ; Colorado Mts. 



flavifl-ons Macquart, Dipt. Exot. II, 3, p. IT, 2 ; Tab. Ill, fig. 2. Newfound- 

 land. 



*laterale Loexo, Centur. V, 42. Nebraska. 



*pubescens Loeio, Centur. V, 43. Illinois. 



*ventricosum Loew, Centur. V, 44. Distr. Columbia. 



nigrita Fahricius, Ent. Syst. IV, p. 292, 49 {Syrphus) ; Syst. Antl. p. 183, 1 

 {Mulio) ; Wjedeman, Auss. Zw. II, p. 88, 3. Jamaica. 



Obsertation. — Besides the above-named species of Chrysotoxum, the fol- 

 lowing European species are quoted as occurring in North America: 



bicinctum Meigen, by Mr. Loew in Neue Dipterol. Beitr. Ill, p. 18, together 

 with Uelophilus pendulus, versicolor and jlorens, also European species. 

 The statement about Chr. bicinctum is repeated by Loew, Verb. Zool. 

 Bot. Ver. 1856, p. 614. None of these species has ever been found in 

 N. A. since, and the statement seems to be based on an error of locality. 



fasciolatum Degeer, according to Walker, List, etc.. Ill, p. 541, was found in 

 Huds. B. Terr. I would not trust the statement without comparing the 

 ppecimens. 



